Hello everyone.
I'm new here and this is my newest phone purchase after weeks and weeks of research I decided to purchase this phone. However I'm having one big problem. I cannot receive phone calls using the phone. However I can send text messages which is strange and when I try to talk to someone it switches to 2G for no real reason too.
It's fully updated and completely stock in fact just purchased three days ago. I'm wondering what I could do so I can get this thing working again. I have 30 days to return this thing, and I rather not because its a rather good phone and I like it a lot but if I can't get it to receive phone calls then I have to return it.
please help anyone.
Dallas Texas said:
Hello everyone.
I'm new here and this is my newest phone purchase after weeks and weeks of research I decided to purchase this phone. However I'm having one big problem. I cannot receive phone calls using the phone. However I can send text messages which is strange and when I try to talk to someone it switches to 2G for no real reason too.
It's fully updated and completely stock in fact just purchased three days ago. I'm wondering what I could do so I can get this thing working again. I have 30 days to return this thing, and I rather not because its a rather good phone and I like it a lot but if I can't get it to receive phone calls then I have to return it.
please help anyone.
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Try installing the t-mobile visual voicemail app, there maybe settings in there you can adjust, only if your U.S though.
boe323 said:
Try installing the t-mobile visual voicemail app, there maybe settings in there you can adjust, only if your U.S though.
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I had the same problem check the apn settings my was the stock tmo setting with the phone and a . Was in the wrong spot
boe323 said:
Try installing the t-mobile visual voicemail app, there maybe settings in there you can adjust, only if your U.S though.
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rob420p said:
I had the same problem check the apn settings my was the stock tmo setting with the phone and a . Was in the wrong spot
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Alright I'll try and install the T-mobile visual voicemail app and see what is good
APN settings yes? I have tried that and tried inputting a manual one and even the ones on there which has three types of T-mobile settings
I'm not an expert on this but I have been looking for info on this for a while before I buy an A2 Lite to use on T-Mobile and I believe this post by a T-Mobile MVNO customer service rep may answer your question
The TLDR is that T-Mobile strictly uses band 12 for all VoLTE calls and if the phone doesn't support band 12/VoLTE T-Mobile forces it to use 2G for calls and texts. In some areas where the spectrum has been refarmed and there are a lot of 2G users your incoming call will time out before the tower finishes searching for you on VoLTE and ultimately tries to connect you to 2G, resulting in your phone not actually ringing.
This would also explain why there are no issues with texts, since they don't time out like an incoming call. Apparently there is no solution to this if you live in certain areas and use T-Mobile, and it will continue to get worse as spectrum is refarmed.
Sorry for the delay -- I'm technically off today. I saw you question and just had to pop in and answer, because I have a complete answer for you. Your issue is band compatibility, specifically the lack of Band 12. Let me explain:
For years and years, T-Mobile sent all their calls over the legacy 2G network on 1900MHz. Every call and text message went over this frequency, and all T-Mobile phones still support it for backwards compatibility.
Then, T-Mobile launched Voice over LTE, or VoLTE. But, they made the stipulation that VoLTE would only ever work on LTE Band 12. That means that any phone that didn't specifically have Band 12 LTE would still have to use the 2G 1900MHz frequency to send all calls and text messages. Any phone that did support Band 12 could use VoLTE and would send all their calls and texts through that VoLTE Band 12 connection.
That's not really a problem for most people, as T-Mobile's 2G network is still live in all their markets. These phones will connect to the LTE network for all data, but all their calls and texts go over that 2G connection.
Enter the problem: Spectrum crunch. Spectrum in the US is a limited resource. That's why the auctions always for it always go for millions of dollars for tiny portions. T-Mobile (and by extension, all its MVNOs, as we have no power over how they build their network) wants to make LTE the new standard, and push into 5G. In order to do that, they need to launch LTE in more places, and feed more devices than ever. They only have so much spectrum, so they reallocate what they already have to the new technology.
This is already happening with 3G. 2G is, again, just being kept around for backwards compatibility. They take the sectors that broadcast 3G (and 2G) and make them smaller and smaller, so the rest of the room can be used for LTE to service more devices faster. It makes business sense.
The process is called "re-farming" spectrum, and a quick Google search quickly becomes a rabbit hole as you find other people in your circumstance. They put the disused services on tiny little slivers of spectrum, some as small as 5MHz, which without getting too technical, is tiny.
If you happen to be unlucky enough live in an area where they're re-farming 2G spectrum to LTE, and your phone doesn't support VoLTE on Band 12, you're effectively fighting all the other T-Mobile (really any carrier, but for arguments' sake) customers whose devices also need to connect to that 2G network
Add enough people, and you get the problem you're having. A call comes into the network, and the towers go to work trying to find you. First, they try VoLTE, and don't find you there. Then they try the old 2G network, but there's like 200 other people in your area that are connected to that one tower, so it has to fight through them all to find your SIM card number and connect the call and-- right before it connects, the call times out of rings and your caller is sent to Voicemail.
You never get a missed call alert, your caller isn't alerted that your phone didn't ring, and because your phone didn't get a confirmation, you probably won't get a voicemail notification.
This doesn't affect the phone's ability to connect to the 3G network or 4G LTE Bands 2 and 4, which lots of phones support. But calls and texts don't travel over those networks. You'll still have an active, working data connection if this is what's happening to you, which is why it's hard to diagnose not just for Ting reps, but our customers and other MVNOs, as well as T-Mobile itself.
This problem isn't going to go away, and it's only going to get worse as re-farming 2G goes nationwide. It's not Ting-specific. Any T-Mobile device will have this problem if there are enough 2G-talk-and-text users in your area.
The phone in question, the Blu Vivo 5, supports Band 2 and Band 4 for LTE, but doesn't support Band 12, and thus doesn't support VoLTE. This is exactly what's happening to you.
This is exactly how it happened to my S/O. She had a Motorola Droid Mini on Ting GSM that worked great for years, on two distinct T-Mobile-powered networks. Then, T-Mobile re-farmed enough 2G in our area that she started missing calls, texts wouldn't arrive and she wouldn't get voicemails. The key identifier that this was her problem was that placing a call would take something like 10-15 seconds to connect. Typically, this should be instant.
There was nothing wrong with the phone at all -- it was working as designed. The second I got her into a Band 12 VoLTE phone, the problems disappeared completely. Nothing else changed.
The only solution is a new (or new-to-you) phone that supports Band 12 and VoLTE. No number of hard resets, network resets or new SIM cards will fix this problem. You'll have this problem on any network that uses T-Mobile as their backbone, as long as the phone you're using doesn't support Band 12 LTE and VoLTE.
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I don't have a high enough post count to post a link but it was posted on r/Ting if you search that subreddit for the thread titled "Over 4 years and now this" you should find it. The info was written by u/literallyunlimited.
D412 said:
I'm not an expert on this but I have been looking for info on this for a while before I buy an A2 Lite to use on T-Mobile and I believe this post by a T-Mobile MVNO customer service rep may answer your question
The TLDR is that T-Mobile strictly uses band 12 for all VoLTE calls and if the phone doesn't support band 12/VoLTE T-Mobile forces it to use 2G for calls and texts. In some areas where the spectrum has been refarmed and there are a lot of 2G users your incoming call will time out before the tower finishes searching for you on VoLTE and ultimately tries to connect you to 2G, resulting in your phone not actually ringing.
This would also explain why there are no issues with texts, since they don't time out like an incoming call. Apparently there is no solution to this if you live in certain areas and use T-Mobile, and it will continue to get worse as spectrum is refarmed.
I don't have a high enough post count to post a link but it was posted on r/Ting if you search that subreddit for the thread titled "Over 4 years and now this" you should find it. The info was written by u/literallyunlimited.
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Thanks fam, I'll return it and get another phone I appreciate the information brother.
Related
So my wife's captivate glide seems to have this problem:
- her glide (everything is stock) often never rings when someone calls her. No missed call notification, just a voicemail if the person decides to leave one.
-yesterday at home I called her phone from both my cell (motorola Atrix, HSDPA) and landline...no ring. Immediately afterwards from my landline to my Atrix, phone rings. Signal strength is around -70dBm for both the Glide and Atrix. I turned on airplane mode on the glide and then off. Called again from our landline and the phone rings on the glide.
Is it the cell tower? phone?
First thing - is the ringer volume on?
ringer volume is on...the glide was in front of me while I was dialing it from our landline or from my Atrix. The glide did not pop up the incoming call screen or ring until I turned on/off airplane mode, which is not a suitable workaround.
cell signal strength from my atrix shows -83 to -91 dBm. cell tower is ~488m away (using the open signal app)
I get this too sometimes.
Could never figure out why if it's hardware or software.
Anyone else have this issue?
I don't have this issue but I never receive calls and when I do it rings
-sent from my insanely awesome captivate glide-
my dads phone (a basic nokia on at&t) does this on occasion the phone has to be rebooted & it works fine. it happens after he goes to their summer home (300 miles away & in a rural area w/ LOTS of at&t dead spots). it does appear to be a tower/roaming type thing.
Get a new sim card....
Sent from my SAMSUNG-SGH-I927 using XDA
My wifes does that as well I think it's a damn att thing honestly
Sent from my SAMSUNG-SGH-I927R using XDA
gnahc79 said:
phone often never rings when someone calls. No missed call notification, just a voicemail if the person decides to leave one.
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I've summed this up as an AT&T issue. Have been with them since the Cingular days and every phone I've ever had with them has exhibited this behavior. Making the switch to T-Mobile now that I can get an unlimited everything plan for $60/month
L4T
Lookin4Trouble said:
I've summed this up as an AT&T issue. Have been with them since the Cingular days and every phone I've ever had with them has exhibited this behavior. Making the switch to T-Mobile now that I can get an unlimited everything plan for $60/month
L4T
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Thing is for when I did my test, my phone (Atrix) got the incoming call from our landline and my wife's phone (Glide) did not. Both have the same band support, maybe the Glide was on a different band?
My wife's phone has the same problem!
My wife's phone has the same problem! She complains about it all the time, and I have no idea what to do. Everything is stock.
It regularly doesn't ring. Like more than twice chunks of time a week.
I do notice that the Glide goes from HSPA to UMTS to HSDPA (in Status->Mobile Network Type) when I enable and then disable airplane mode. The Atrix stays on HSPA when I enable and then disable airplane mode.
I think when the Glide was not receiving calls it was in UMTS. Atrix was in HSPA.
I know someone else with a Blackberry on AT&T that has this problem sometimes. My Glide on AT&T had this problem the other day. I think it's a network thing.
At least if you use Google Voice for voicemails you will always get an e-mail that you missed a call even when the phone doesn't even show a missed call and the caller doesn't leave a voicemail.
Can any of you follow up on this? Did you ever get the problem solved? Did switching phones or SIMs help?
I'm collecting info on this thread: http://forum.xda-developers.com/showthread.php?t=1779654 so we can assess the extent of this issue.
Not just an AT&T problem, it happens to me on Rogers in Canada. It happened to me just earlier today.
Mine has periods of time where it will do this, maybe an afternoon or a full day, then it goes away. Not often maybe once every couple of months. I suspect it is the carrier.
Sent from my SAMSUNG-SGH-I927 using xda app-developers app
I had the same problem and for me, I found that "viper" program is causing it... It takes hold of the phone functionality and prevents the android phone app from triggering the ring and lighting the screen ... I unistalled it and every thing is back to noramal :good:
Me and the Mrs have the same problem all the time. There is no telling how many calls we miss.
Lookin4Trouble said:
I've summed this up as an AT&T issue. Have been with them since the Cingular days and every phone I've ever had with them has exhibited this behavior. Making the switch to T-Mobile now that I can get an unlimited everything plan for $60/month
L4T
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I'm with Lookin4Troubleon this one and think this is an AT&T issue (who I have also been with since Cingular).
New Motorola Atrix HD, working fine, left on a desk in a well serviced area having never left range of the tower to which it is connected. After a period of time although the phone shows full bars and a 4G connection, when a call is dialed from the phone it realizes that it is not on any network and re-initializes it's network connection, going through the various icons and network types until it gets to 4G and then the call goes out. While the phone is in that limbo state (full bars and 4G icon but not actually connected to the network) incoming calls go straight to voice-mail and no alerts for missed calls or voice mails are sent to the phone... until the process of making an outgoing call from the phone forces it to re-find the network - then incoming calls and voice mail alerts function... until the next instance. This happens several times a day and I have been unable to logically connect the problem it to any activity starting at the phone.
In the early days of 3G this used to happen a lot because the phones (referring to Motorola Razer V3xx) were unable to cleanly release a tower going out of range and attach to a tower coming into range as you traveled. Compounding the problem was the fact that the phones would not fall back on a different network band as they should have when the 3G connections were bad... because bad 3G connections were not being detected by the phone.
Same sh!t, different day! The new generation of 4G phones on AT&T are as bad as ever at falling back to the older network type when needed AND somehow the combination of AT&T and Motorola have managed to recreate this problem on stationary phones in good coverage areas. GOOD GRIEF.
Working my way through some tech levels at Motorola and AT&T. I've always suspected that this has to do with the phone not properly switching between the various networks it uses for calls and data, and to my amazement AT&T leaned towards blaming their own service issues along those very lines of thought. They seem to be having issues managing their 4G LTE stuff. If their next round of escalation does not find an answer I'm going to try forcing WCDMA connection (4G without LTE) to see if the issue relates to the toggle off/on of the LTE component. The LTE indicator is on for data and off for calls and there is a brief moment where the signal dips to zero bars during the transition. The 2 screenshots below show network state during a "4G" call and after call has ended. Perhaps this is where the problem lies. For anyone interested in testing this way, you can use LTE Setting by Ryo Ueshima. Even though that app was developed for Sony Xperia I've used to to test forcing of GSM/Edge and 4G (no LTE) on my Atrix HD. Resets after restart of phone and perhaps at other times, and may behave differently on different providers - also there are some buttons in that app which you don't want to click on without first noting the default value.
Network State During "4G" Call
View attachment 1787153
Network State After Call (after transition from 4G to 4G LTE)
View attachment 1787154
When you call granny, does she keep saying "Huh?! Wut?!" or does the conversation flow pretty well? Rate this thread to express how you feel about the ZTE Axon 7's call quality. A higher rating indicates that calls are clear and crisp, and that regardless of background noise, you can hear the other party clearly (and with ample volume) and they can hear you.
Then, drop a comment if you have anything to add!
Please let us know if calls are clear and how speakerphone sounds and thanks.
Sent from my SM-N910T using Tapatalk
Call quality is perfectly fine. Good volume too.
Speakerphone is among the best I've ever used on a smartphone. Good volume and doesn't have that raspy, tinny characteristic that plagues many smartphones.
On tmobile it is used volte and hd voice. Tested by calling note 5 and nexus 6p.
Sent from my Nexus 6P using Tapatalk
erm1001 said:
On tmobile it is used volte and hd voice. Tested by calling note 5 and nexus 6p.
Sent from my Nexus 6P using Tapatalk
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I use TMobile also. How is your signal strength compared to other phones and thanks.
Sent from my SM-N910T using Tapatalk
huntnyc said:
I use TMobile also. How is your signal strength compared to other phones and thanks.
Sent from my SM-N910T using Tapatalk
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It is seem fine. Compared to my wife Note 5
T-Mobile user here. My previous phones all got full service at home, this one - on a brand new nano sim mind you, gets one bar and -116dBm and 24asu. Calls sound poor. Called T-Mobile and they said their system wasn't detecting the phone as an LTE device - but (Settings > About Phone > Status > SIM Status) shows LTE Cellular Network Type!
I've tried with VOLTE both enabled and disabled and received the same signal strength.
When I disable WiFi , my data shows 4G LTE but that doesn't change the signal strength for voice. (Settings > About Phone > Status > SIM Status)
T-Mobile was opening a trouble ticket to check the local tower I am connecting to but I suspect this is a phone radio or firmware issue and not SIM/Carrier related.
Anyone else found setting changes to make optimal signal strength?
I am on TMobile also and want to order this phone but reports of poor signal strength and wifi connection have got me hesitating. Please keep your feedback coming and thanks.
Sent from my SM-N910T using Tapatalk
taijo said:
T-Mobile user here. My previous phones all got full service at home, this one - on a brand new nano sim mind you, gets one bar and -116dBm and 24asu. Calls sound poor. Called T-Mobile and they said their system wasn't detecting the phone as an LTE device - but (Settings > About Phone > Status > SIM Status) shows LTE Cellular Network Type!
I've tried with VOLTE both enabled and disabled and received the same signal strength.
When I disable WiFi , my data shows 4G LTE but that doesn't change the signal strength for voice. (Settings > About Phone > Status > SIM Status)
T-Mobile was opening a trouble ticket to check the local tower I am connecting to but I suspect this is a phone radio or firmware issue and not SIM/Carrier related.
Anyone else found setting changes to make optimal signal strength?
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I'm also on T-Mobile and have noticed some issues with signal strength and other radio related problems. I'm actually returning the phone to Newegg today because of the issues I describe below. I definitely think it's software related. The signal strength is mostly fine but it does seem too low in places compared to what my Nexus 6 had.
The major problem I'm having is with incoming calls either not ringing and going straight to "missed" or auto answering without ringing. It's happened at least 4 times where I see a missed call notification despite no ringing or vibrating and I never have my phone on silent. Just straight to missed call.
On several other occasions a call will come through and be answered automatically while in my pocket. It's the strangest thing I've encountered with a phone. The call just comes in without any warning or input on my behalf and I can hear the caller talking before I take the phone out of my pocket. There is an auto answer feature in the settings but it's been disabled. Even if that feature was on it should ring at least once.
I love the phone but these two issues are massive deal breakers. I need to be able to receive calls properly for business and don't want to wait around for a fix or void my warranty trying a new ROM when development picks up.
RaDeN305 said:
I'm also on T-Mobile and have noticed some issues with signal strength and other radio related problems. I'm actually returning the phone to Newegg today because of the issues I describe below. I definitely think it's software related. The signal strength is mostly fine but it does seem too low in places compared to what my Nexus 6 had.
The major problem I'm having is with incoming calls either not ringing and going straight to "missed" or auto answering without ringing. It's happened at least 4 times where I see a missed call notification despite no ringing or vibrating and I never have my phone on silent. Just straight to missed call.
On several other occasions a call will come through and be answered automatically while in my pocket. It's the strangest thing I've encountered with a phone. The call just comes in without any warning or input on my behalf and I can hear the caller talking before I take the phone out of my pocket. There is an auto answer feature in the settings but it's been disabled. Even if that feature was on it should ring at least once.
I love the phone but these two issues are massive deal breakers. I need to be able to receive calls properly for business and don't want to wait around for a fix or void my warranty trying a new ROM when development picks up.
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I've used this at home on TMO in Seattle for about a week and did not have the same issues. I also have active AT&T SIM and have not had problems. Other phones I carry with me are Nexus 6, Huawei Ascend Mate 2, LG G4, and RedMi Note 2. Compared to these other devices I did not notice a stark difference with signal strength.
Regarding the "not detected as LTE" on TMO that sounds fishy to me. I'd suggest trying something, go into phone information menu from dialer *#*#4636#*#* and set network to LTE Only. Bounce the radio from the same menu (not required but a good idea). Then check if you're on LTE, if the phone is set to LTE Only and you have signal you're on LTE but to make it easier Google Play has a ton of apps to check this like G-NetTrack Lite or Network Cell Info Lite both will tell you specifically if you're on LTE and show eNB, etc.
If you do set phone to LTE Only you must go back into Settings --> Dual SIM settings --> Network Mode and set back to LTE/WCDMA/GSM
You'll notice this menu in Network Mode does not have options for "LTE only" or "WCDMA (UMTS "4G" HSPA+) only" which is why the going into the Phone Information menu is required for this.
Right now I am out on business travel and one thing I can say is that the dual SIM is pretty good roaming. I got myself into a bad situation as I set my phone to LTE only for testing a few things and did not switch back. The carrier I am roaming on does not have VoLTE so I broke my voice for a about a day and did not notice until I tried to make an outbound call and it failed.
Regarding call quality I've been using it abroad for about a week making voice calls on WCDMA/UMTS networks (no VoLTE here) with local SIMs and it's been just fine. No signal issues.
mdkathon said:
I've used this at home on TMO in Seattle for about a week and did not have the same issues. I also have active AT&T SIM and have not had problems. Other phones I carry with me are Nexus 6, Huawei Ascend Mate 2, LG G4, and RedMi Note 2. Compared to these other devices I did not notice a stark difference with signal strength.
Regarding the "not detected as LTE" on TMO that sounds fishy to me. I'd suggest trying something, go into phone information menu from dialer *#*#4636#*#* and set network to LTE Only. Bounce the radio from the same menu (not required but a good idea). Then check if you're on LTE, if the phone is set to LTE Only and you have signal you're on LTE but to make it easier Google Play has a ton of apps to check this like G-NetTrack Lite or Network Cell Info Lite both will tell you specifically if you're on LTE and show eNB, etc.
If you do set phone to LTE Only you must go back into Settings --> Dual SIM settings --> Network Mode and set back to LTE/WCDMA/GSM
You'll notice this menu in Network Mode does not have options for "LTE only" or "WCDMA (UMTS "4G" HSPA+) only" which is why the going into the Phone Information menu is required for this.
Right now I am out on business travel and one thing I can say is that the dual SIM is pretty good roaming. I got myself into a bad situation as I set my phone to LTE only for testing a few things and did not switch back. The carrier I am roaming on does not have VoLTE so I broke my voice for a about a day and did not notice until I tried to make an outbound call and it failed.
Regarding call quality I've been using it abroad for about a week making voice calls on WCDMA/UMTS networks (no VoLTE here) with local SIMs and it's been just fine. No signal issues.
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mdkathon, Thank you for the detailed reply! Please note below the results:
So I followed your instruction to no additional positive result. Using the two apps you recommended as well as the LTE Discovery app here is what I see:
When I first enable the radio (whether LTE only or LTE/GSM/WCDMA) it comes up on LTE Band 12 and I have excellent signal (about 4 bars) with < -80 db and then about 30 seconds later it will fall over to LTE band 4 and the signal drops to > -110 or worse and I go to 1-2 bars of signal. I have no idea why the LTE band changes on it's own. Maybe I can force it to stay on Band 12 somehow?
I looked up the TMobile frequencies and they are here: Frequencies: Band 2 (1900 MHz), Band 4 (1700/2100 MHz), Band 12 (700 MHz)
The ZTE LTE Band support list is here: LTE: B2/B4/B5/B12/B13/B17/B7/B3/B1/B20/B29/B30/B25/B26/B41
Seems like I should be good. I don't know why a good Band 12 signal would fall back to Band 4 though. Can anyone explain that?
I also noticed in the Testing menu (*#*#4636#*#*) the ability to select from the band menu: USA Band, Band Mode 6 or Band Mode 7. I haven't made any changes there since I cannot tell what the current selection is, nor what the difference between the 3 choices would be. *Edit: This is for GSM/UMTS so I'm not sure if it has any effect*
Of those three LTE analysis apps I am not sure what any of the data is telling me (eNB etc) so if there is a primer for those I have not yet looked for it.
Has anybody tried the SIGNAL BOOST feature? Is it any good or just a gimmick?
taijo said:
mdkathon, Thank you for the detailed reply! Please note below the results:
So I followed your instruction to no additional positive result. Using the two apps you recommended as well as the LTE Discovery app here is what I see:
When I first enable the radio (whether LTE only or LTE/GSM/WCDMA) it comes up on LTE Band 12 and I have excellent signal (about 4 bars) with < -80 db and then about 30 seconds later it will fall over to LTE band 4 and the signal drops to > -110 or worse and I go to 1-2 bars of signal. I have no idea why the LTE band changes on it's own. Maybe I can force it to stay on Band 12 somehow?
I looked up the TMobile frequencies and they are here: Frequencies: Band 2 (1900 MHz), Band 4 (1700/2100 MHz), Band 12 (700 MHz)
The ZTE LTE Band support list is here: LTE: B2/B4/B5/B12/B13/B17/B7/B3/B1/B20/B29/B30/B25/B26/B41
Seems like I should be good. I don't know why a good Band 12 signal would fall back to Band 4 though. Can anyone explain that?
I also noticed in the Testing menu (*#*#4636#*#*) the ability to select from the band menu: USA Band, Band Mode 6 or Band Mode 7. I haven't made any changes there since I cannot tell what the current selection is, nor what the difference between the 3 choices would be. *Edit: This is for GSM/UMTS so I'm not sure if it has any effect*
Of those three LTE analysis apps I am not sure what any of the data is telling me (eNB etc) so if there is a primer for those I have not yet looked for it.
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Click to collapse
Hi - I'm not a cellular engineer so I could be wrong, but I believe T-Mobile's network management itself is the variable in determining which LTE frequency your phone will use. So, even though you have a stronger band 12 signal available, the network will often push you to band 2 or 4 if it can do so as these frequencies yield better throughput in general and will free up spectrum on band 12, which is usually a bit more scarce (low band airwaves are typically more congested, so higher band airwaves like band 2 and 4 are preferred for network management purposes).
The only way to limit your phone to band 12 that I know of is hack into the non-volatile memory via the diagnostic mode and QXDM and manually enable/disable LTE bands 2 and/or 4...but that's probably more trouble than it's worth, especially if you don't want to permanently remove these bands. Plus, diagnostic mode can be super hard to get into on some devices and there are some protections which make it hard to make changes stick permanently, depending on the device.
Also, I should mention that Verizon and AT&T do the exact same thing as T-Mobile in my experience - for instance, band 13 for Verizon seems to only be used when band 4 or 2 are super low strength or completely unavailable. I often find my Verizon SIM sitting at around -115 dBm or so on band 4 and sometimes see it dip into the -120-ish area before switching to band 13.
Constantly told that It sounds muffled out, I can hardly hear as well... great via bluetooth but that's not always available. .. don't know any solutions right now other than maybe return the device..;.WIND Mobile.. Canada here. Never had any problems with the LG G4
efendi011 said:
Has anybody tried the SIGNAL BOOST feature? Is it any good or just a gimmick?
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What signal boost feature?
dennis96411 said:
What signal boost feature?
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See here, right above the "Performance" chapter:
devicespecifications.com/en/editor-review/f9c817
Thought if this can have something to do with the SD 820's TruSignal feature...?
efendi011 said:
See here, right above the "Performance" chapter:
devicespecifications.com/en/editor-review/f9c817
Thought if this can have something to do with the SD 820's TruSignal feature...?
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Click to collapse
Odd, they removed the menu from the A2017U.
As I mentioned in the cell strength review, this phone seems to have a small issue with reception. It is getting worse reception of 5-10db than an old s4, when everything is the same. There is a thread on reddit that has more info about this.
Not sure if this specifically for our US chums. But I have to say I am disappointed with my EU version. The call quality is bad. Not so much about network in terms of stuttering/cutting conversations but in terms of the sound quality. There is a clearly audible background buzz and I can only liken the sound to a low quality audio file. By that I mean you can hear it but the 'noise' and subtle distortion is not what I expect. Imagine having an MP3 at 128KB and one at 320KB - I expect the latter and feel like it's the former.
I am wondering if it is software or hardware.
I'm reluctant to send back as I don't want to end up with a 'refurb' packaged and sent as a new one.
test878 said:
As I mentioned in the cell strength review, this phone seems to have a small issue with reception. It is getting worse reception of 5-10db than an old s4, when everything is the same. There is a thread on reddit that has more info about this.
Click to expand...
Click to collapse
I compared my A2017G to my older phone using the "Mobil Signal" app from the play store.
My old phone has one of the best receptions signals compared to other OEM. I even confirmed that with two CM devs that have like 15+ devices around and they confirmed that the phone has the best reception signal off all.
I setup the Mobil Signal app and changed the widget to show "percentages" instead of dbm.
Dbm's don't tell me much.
I hit refresh every time I had the chance too on both devices on different locations. Both Sim's are from the same provider both support the same bands.
The Axon 7 _always_ came 5% lower in signal strength than did my old phone. Telling by this results I think the A2017G has no issues in signal strength overall. As I compared it to a phone which is known to have an exception good reception.
I think it is on par with other OEM's.
Hello just switched back to t mobile and have a question..have an unlock galaxy s8+ with t mobile firmware and when doing a phone call, myself , as well as the person I'm speaking with, the volume goes in and out despite the fact I have more then adequate service(-100dbm b4). Never drop a call just lose volume..Called t mobile and they have no idea. If I use WiFi calling I don't have the issue. Don't have option to turn off volte being in mostly band 12 only areas so I wouldn't be able to receive calls. Hard having a conversation when you miss seconds at a time of the conversation..tried reflashing firmware with odin as well as a factory reset. Do notice this phone switches between b4 and b12 really frequently despite the fact it isn't needed at my house as both have fine coverage and b4 rarely goes under -105dbm... Any advice?
fantasy2c said:
Hello just switched back to t mobile and have a question..have an unlock galaxy s8+ with t mobile firmware and when doing a phone call, myself , as well as the person I'm speaking with, the volume goes in and out despite the fact I have more then adequate service(-100dbm b4). Never drop a call just lose volume..Called t mobile and they have no idea. If I use WiFi calling I don't have the issue. Don't have option to turn off volte being in mostly band 12 only areas so I wouldn't be able to receive calls. Hard having a conversation when you miss seconds at a time of the conversation..tried reflashing firmware with odin as well as a factory reset. Do notice this phone switches between b4 and b12 really frequently despite the fact it isn't needed at my house as both have fine coverage and b4 rarely goes under -105dbm... Any advice?
Click to expand...
Click to collapse
Is your sim card new? If not I'd start with replacing that. What apn settings are you using? I believe your phone should drop to HSPA+ on a phone call if you have volte off , well mine does anyways and I'm on similar bands but I have ATT as a carrier.
Sent from my SM-G955U1 using XDA-Developers Legacy app
Quickvic30 said:
Is your sim card new? If not I'd start with replacing that. What apn settings are you using? I believe your phone should drop to HSPA+ on a phone call if you have volte off , well mine does anyways and I'm on similar bands but I have ATT as a carrier.
Click to expand...
Click to collapse
If I turn volte off I wouldn't be able to receive calls, majority of my area is lte only. Just got a sim 1 week ago when I switched back over to t mobile..i noticed that It happens while phone is changing between band 4 and band 12 which it does at the very least once every minute so I disabled band 4 and it seems to not do it now which stinks but it's not a deal breaker as phone still works fine and data speeds are still high enough that it's not a problem just weird
fantasy2c said:
If I turn volte off I wouldn't be able to receive calls, majority of my area is lte only. Just got a sim 1 week ago when I switched back over to t mobile..i noticed that It happens while phone is changing between band 4 and band 12 which it does at the very least once every minute so I disabled band 4 and it seems to not do it now which stinks but it's not a deal breaker as phone still works fine and data speeds are still high enough that it's not a problem just weird
Click to expand...
Click to collapse
LTE only, I find that hard to believe as most lower grade and mid grade phones don't even have the option for volte but whatever, glad ya got it partially figured out. I would try flashing different basebands aka radio aka modem aka CP lol and see of that fixes the issue.
Quickvic30 said:
LTE only, I find that hard to believe as most lower grade and mid grade phones don't even have the option for volte but whatever, glad ya got it partially figured out. I would try flashing different basebands aka radio aka modem aka CP lol and see of that fixes the issue.
Click to expand...
Click to collapse
If I remember correctly any baseband will work except Verizon ones as they are only one that blocks band 12 right? Hopefully find some odin flashable modems online so I don't have to spend forever downloading whole package off Sam mobile. I grabbed latest 955u1 t mobile firmware when I switched from Verizon last week bc phone wouldn't work or update from coming from Verizon for some odd reason
They're all literally the same CP/modem for the u and u1 models, so when changing modems you actually have to flash different build numbers not just different carriers modems with the same build number cause they're all the same lol, aka multi-csc
It's definitely when the phone changes bands, which I still don't get why it's so constant. Played around again tonight and would switch from -100dbm band 4, call would cut out as I switched to -92dbm band 12 then seconds later back to b4 to where it would cut out again. Fix for me is to keep band 4 disabled but then when I go to city I'm screwed bc parts don't have b12 only b4 and I have to go into dialer and re enable it..it. shouldn't cut out, my pixel never had this issue or nexus 6. Idk what to do about this
I'm wondering if anyone else is or has been experiencing this issue. For the last couple weeks my black Pixel 2XL 128gig on Android 8.0 is having a problem switching from LTE to HSPA when trying to make a phone call. I've been on the phone with both Google and AT&T numerous times. ATT deactivated and reactivated my sim card. I ended up getting a new sim card and still didn't fix the problem. Google eventually sent me a brand new phone and I'm still having the same problem. Now Google wants to send me another new phone. I had the original pixel XL on ATT and did not have this issue at all. Anyone else having a similar issue?
Uh... Yes, that's normal, you don't have VoLTE enabled. There's a whole thread about enabling it with AT&T here on the boards. TLR of that thread, download the Oreo 8.1 beta, enable VoLTE in the software, talk to AT&T to enable enhanced voice features.
Sent from my Pixel 2 XL using Tapatalk
You may need a new sim card, I had similar issues, visited an AT&T store and it was fixed within five minutes.
dratsablive said:
You may need a new sim card, I had similar issues, visited an AT&T store and it was fixed within five minutes.
Click to expand...
Click to collapse
I did get a new SIM card. Still was experiencing the same problem. I updated to 8.1 beta to and enabled enhanced LTE to see if that fixes the issue.
JaredC01 said:
Uh... Yes, that's normal, you don't have VoLTE enabled. There's a whole thread about enabling it with AT&T here on the boards. TLR of that thread, download the Oreo 8.1 beta, enable VoLTE in the software, talk to AT&T to enable enhanced voice features.
Click to expand...
Click to collapse
It definitely was not normal. I had a the first pixel XL before this and did not experience this issue.
dutchy716 said:
It definitely was not normal. I had a the first pixel XL before this and did not experience this issue.
Click to expand...
Click to collapse
Then somehow you had VoLTE on your first Pixel. Without VoLTE, the phone will 100% of the time kick back out to HSPA+ when you make a phone call. That's been the case with every phone I've owned prior to VoLTE and actually having a phone that had and made use of VoLTE.
Sent from my Pixel 2 XL using Tapatalk
JaredC01 said:
Then somehow you had VoLTE on your first Pixel. Without VoLTE, the phone will 100% of the time kick back out to HSPA+ when you make a phone call. That's been the case with every phone I've owned prior to VoLTE and actually having a phone that had and made use of VoLTE.
Click to expand...
Click to collapse
I know it's supposed to kick back to HSPA when making a phone call. The problem is that it doesn't. Instead of going to HSPA I lose signal completely. The phone will try to make the phone call and then the phone will manually hang up like I hit the end call button but it does it automatically. Then I either have to toggle airplane mode or reboot the phone to get LTE again.
dutchy716 said:
I know it's supposed to kick back to HSPA when making a phone call. The problem is that it doesn't. Instead of going to HSPA I lose signal completely. The phone will try to make the phone call and then the phone will manually hang up like I hit the end call button but it does it automatically. Then I either have to toggle airplane mode or reboot the phone to get LTE again.
Click to expand...
Click to collapse
Ah ha, your original post didn't make it sound like that. In that case, maybe try a new SIM card?
Edit: Re-read the first post and you already tried a new SIM. Have you tried a SIM from someone else, maybe on another Network to see if it's the phone or the network?
JaredC01 said:
Ah ha, your original post didn't make it sound like that. In that case, maybe try a new SIM card?
Click to expand...
Click to collapse
Ya I got a new SIM the other day. I talked to jcase about it and he believes it's a provisioning issue on AT&Ts end. I was just wondering if anyone else has experienced this and if they found a solution to it. I did end up upgrading to 8.1 beta and that obviously fixed it because of enhanced calling. It's just weird because I haven't found anybody else who has had this problem.
dutchy716 said:
I'm wondering if anyone else is or has been experiencing this issue. For the last couple weeks my black Pixel 2XL 128gig on Android 8.0 is having a problem switching from LTE to HSPA when trying to make a phone call. I've been on the phone with both Google and AT&T numerous times. ATT deactivated and reactivated my sim card. I ended up getting a new sim card and still didn't fix the problem. Google eventually sent me a brand new phone and I'm still having the same problem. Now Google wants to send me another new phone. I had the original pixel XL on ATT and did not have this issue at all. Anyone else having a similar issue?
Click to expand...
Click to collapse
One thing you should always try before going to the provider is a safe mode boot. I tried a new rom and could not get data. Most things worked but no data. I could call and WIFI but no cellular data. In safe mode I got data. That tells you some third party APP is responsible.
JaredC01 said:
Then somehow you had VoLTE on your first Pixel. Without VoLTE, the phone will 100% of the time kick back out to HSPA+ when you make a phone call. That's been the case with every phone I've owned prior to VoLTE and actually having a phone that had and made use of VoLTE.
Sent from my Pixel 2 XL using Tapatalk
Click to expand...
Click to collapse
What does VoLTE have to do having LTE data while on a call? I don't see any reason why you couldn't have LTE available for data even when it doesn't support LTE for voice calls.
I've had LTE switch to H every time I've made a phone call on my Nexus 5, Nexus 5X and Pixel 2 XL. Since 8.1 I've had VoLTE. I know because when I make a call I see the "HD" which is VoLTE but the LTE still switches to H so it seems like the two are related.
jimv1983 said:
What does VoLTE have to do having LTE data while on a call?
Click to expand...
Click to collapse
Uhm, everything? VoLTE is Voice over LTE which implies that you have an LTE radio connection (as opposed to a UMTS/WCDMA/HS*PA radio connection).
jimv1983 said:
I don't see any reason why you couldn't have LTE available for data even when it doesn't support LTE for voice calls.
Click to expand...
Click to collapse
That's because you don't understand the fundamental way in which cellular networks work. Don't feel bad - you're not alone; it's a complicated topic.
The radio on your device can only support one type of radio connection at a time. There are a multitude of reasons for this: capacity on the chip, the need for multiple amplifiers to work simultaneously (because typically carriers use different parts of the radio spectrum for one Radio Access Type than another), antenna capacity etc. Keep in mind that are scenarios in which your device is already juggling quasi multiple radio connects, e.g. carrier aggregation.
Don't get me wrong, there have been devices that supported multiple simultaneous radio access technologies on a single device, but that's because they had multiple radios. These were older devices on IS-95 CDMA carriers such a Sprint when they were pushing WIMAX, and even I believe some Verizon devices which allowed them to do multi-RAB for simultaneous voice and calls before their CDMA infrastructure was upgraded to allow this (and prior to their VoLTE launch). These devices are few and far between.
One last point on this topic: the network handles handover between RATs (though it's possible for the device to only support one RAT). If you were allowed to have simultaneous connections to two radio access types, the network would be juggling twice the resources for your device (the transmit and receive portion of a data connection or call is not the only resource involved). This is yet another reason why in most circumstances you'll never see two simultaneous RATs for one device: it costs the network money. Unless you're trying to cover up for a deficiency is your network architecture (e.g. IS-95 CDMA networks lack of support for multi-RAB. Multi-RAB refers to radio access bearers, basically multiple virtual connections across a single radio link. You might think of this like VLANs on an ethernet network.) you don't put the network and engineering expenses to support multiple RATs..
jimv1983 said:
I've had LTE switch to H every time I've made a phone call on my Nexus 5, Nexus 5X and Pixel 2 XL. Since 8.1 I've had VoLTE. I know because when I make a call I see the "HD" which is VoLTE but the LTE still switches to H so it seems like the two are related.
Click to expand...
Click to collapse
Actually, no. "HD" stands for "HD Voice" which is a better codec. Depending on the carrier, you may get HD voice on a 3G RAT and VoLTE RAT or just on a VoLTE RAT. Keep in mind that HD Voice uses more radio resource than the standard GSM codecs, so there's a trade-off involved here. LTE is more spectral efficient, so offering the higher quality, higher bit rate voice codec on VoLTE has less of an impact on the network than offering it on VoLTE + 3G. So depending on your carrier, they may or may not allow the HD codec on non-VoLTE radio connections. Either way, HD does not in any way shape or form constitute having a VoLTE connection, since it's radio access type independent.
RomPlinker said:
Uhm, everything? VoLTE is Voice over LTE which implies that you have an LTE radio connection (as opposed to a UMTS/WCDMA/HS*PA radio connection).
That's because you don't understand the fundamental way in which cellular networks work. Don't feel bad - you're not alone; it's a complicated topic.
The radio on your device can only support one type of radio connection at a time. There are a multitude of reasons for this: capacity on the chip, the need for multiple amplifiers to work simultaneously (because typically carriers use different parts of the radio spectrum for one Radio Access Type than another), antenna capacity etc. Keep in mind that are scenarios in which your device is already juggling quasi multiple radio connects, e.g. carrier aggregation.
Don't get me wrong, there have been devices that supported multiple simultaneous radio access technologies on a single device, but that's because they had multiple radios. These were older devices on IS-95 CDMA carriers such a Sprint when they were pushing WIMAX, and even I believe some Verizon devices which allowed them to do multi-RAB for simultaneous voice and calls before their CDMA infrastructure was upgraded to allow this (and prior to their VoLTE launch). These devices are few and far between.
One last point on this topic: the network handles handover between RATs (though it's possible for the device to only support one RAT). If you were allowed to have simultaneous connections to two radio access types, the network would be juggling twice the resources for your device (the transmit and receive portion of a data connection or call is not the only resource involved). This is yet another reason why in most circumstances you'll never see two simultaneous RATs for one device: it costs the network money. Unless you're trying to cover up for a deficiency is your network architecture (e.g. IS-95 CDMA networks lack of support for multi-RAB. Multi-RAB refers to radio access bearers, basically multiple virtual connections across a single radio link. You might think of this like VLANs on an ethernet network.) you don't put the network and engineering expenses to support multiple RATs..
Actually, no. "HD" stands for "HD Voice" which is a better codec. Depending on the carrier, you may get HD voice on a 3G RAT and VoLTE RAT or just on a VoLTE RAT. Keep in mind that HD Voice uses more radio resource than the standard GSM codecs, so there's a trade-off involved here. LTE is more spectral efficient, so offering the higher quality, higher bit rate voice codec on VoLTE has less of an impact on the network than offering it on VoLTE + 3G. So depending on your carrier, they may or may not allow the HD codec on non-VoLTE radio connections. Either way, HD does not in any way shape or form constitute having a VoLTE connection, since it's radio access type independent.
Click to expand...
Click to collapse
My Pixel 2 XL does VoLTE on AT&T. "HD" might have different meanings in different cases but in this case the "HD" does mean VoLTE. Google specifically stated that in release notes for 8.1 on the Pixel 2 XL.
Also, back when I had a Galaxy S2 Skyrocket (AT&T's LTE variant of the Galaxy S2 and its first LTE phone) back in late 2011 it didn't do VoLTE but it did allow LTE data while a voice call was in progress.
It's HD1907 T-MOBILE. What I need is HD1905. He sent me the wrong one.
I only realized a few hours ago I had no mobile data. I had got calls and texts to work this morning.
After spending 45 minutes on the phone with AT&T they concluded my phone is not recognized as LTE compatible. WTF? It's not even connecting to 3g.lb
I've been buying unlocked phones for years. My last phone was OP5T. I've never experienced anything like this.
I'll probably take it to the corporate store tomorrow but doubt it'll help. Has anyone had problems with AT&T and this phone?
I'm just putting it out there, hoping somebody has an idea...
AT&T worked for me, excellent data speeds, and great signal. But at times it would go from 4 bars to absolutely no signal or data, and lots of dropped calls. After that I went to Verizon, not as good of signal, slower data, but no dropped phone calls or mysterious total loss of signal in an area where it should have been 4 bars.
Droid_Nut said:
AT&T worked for me, excellent data speeds, and great signal. But at times it would go from 4 bars to absolutely no signal or data, and lots of dropped calls. After that I went to Verizon, not as good of signal, slower data, but no dropped phone calls or mysterious total loss of signal in an area where it should have been 4 bars.
Click to expand...
Click to collapse
I'll bet if you look in the settings your model is HD1905 or the global model, not sure the number.
Actually if you could take a look for me and post back here that'd be good. It most likely won't make a difference but I'm curious.
KLit75 said:
I'll bet if you look in the settings your model is HD1905 or the global model, not sure the number.
Actually if you could take a look for me and post back here that'd be good. It most likely won't make a difference but I'm curious.
Click to expand...
Click to collapse
Yes I have the HD1905, but you can totally forget about vowifi with any provider except for T-Mobile. I tried them all, I even had a tech from VZW work diligently to try and get vowifi working. I told him to try and add my IMEI to the approved list, and that did not work either. As far as AT&T, they did not give me the time of day, they just told me I needed and AT&T device, period.
Droid_Nut said:
Yes I have the HD1905, but you can totally forget about vowifi with any provider except for T-Mobile. I tried them all, I even had a tech from VZW work diligently to try and get vowifi working. I told him to try and add my IMEI to the approved list, and that did not work either. As far as AT&T, they did not give me the time of day, they just told me I needed and AT&T device, period.
Click to expand...
Click to collapse
You mean Verizon when you say VZW?
I'm just confused as to how he would be able to add it to the list of approved devices.
Anyway it's BS. If the carrier supports the phone, and the phone is capable of VOLT!/WIFI CALLING, it should work.
KLit75 said:
You mean Verizon when you say VZW?
I'm just confused as to how he would be able to add it to the list of approved devices.
Anyway it's BS. If the carrier supports the phone, and the phone is capable of VOLT!/WIFI CALLING, it should work.
Click to expand...
Click to collapse
Yes Verizon. I have heard hear many times on this site, that phones are blocked from wifi calling by the IMEI, I or they could be wrong.
Vowifi works on the unlocked Pixel, but are they going to butt heads with Google? Volte works fine, I got a network extender, and I can use google voice to make calls over wifi if I really need to.
If vowifi is a must, get an approved phone, that is all you can do.
Droid_Nut said:
AT&T worked for me, excellent data speeds, and great signal. But at times it would go from 4 bars to absolutely no signal or data, and lots of dropped calls. After that I went to Verizon, not as good of signal, slower data, but no dropped phone calls or mysterious total loss of signal in an area where it should have been 4 bars.
Click to expand...
Click to collapse
I worked at AT&T until a few months ago. I can tell you confidently that their tech support is a bunch of dummies. Employees have their own tech support line to call and that one is just as bad. They would routinely tell customers they needed to go to a store to have something done. Then they'd get to the store to find out we literally cannot do that at the store. Stuff like that was super common. One of them even bet me $1,000 that iPhones DON'T reboot when they update, which we all know is all the way wrong.
I halfway think support tells people that stuff on purpose to try to get them to buy something from AT&T. God, I could rant about that place for hours lol
redemptionx11 said:
I worked at AT&T until a few months ago. I can tell you confidently that their tech support is a bunch of dummies. Employees have their own tech support line to call and that one is just as bad. They would routinely tell customers they needed to go to a store to have something done. Then they'd get to the store to find out we literally cannot do that at the store. Stuff like that was super common. One of them even bet me $1,000 that iPhones DON'T reboot when they update, which we all know is all the way wrong.
I halfway think support tells people that stuff on purpose to try to get them to buy something from AT&T. God, I could rant about that place for hours lol
Click to expand...
Click to collapse
Maybe you can answer this for me. Just because a T-MOBILE locked phone is able to make calls and texts on AT&T, does that automatically mean it should be able to connect to mobile data?
I was able to get it to make calls after a refresh signal was sent out, but it could not connect to mobile data . My sim is fine. I even popped it my son's Pixel 3a and LTE started immediately.
The seller is saying the fact that it was able to make calls means it is able to connect to mobile data. And I should take it to AT&T before returning it. I don't think he's scamming. He says he has the same phone on AT&T. And he's sold Hundreds of them. That kinda checks out based on reviews and some of those people do report it works with AT&T.
These phones are hd1907 T-Mobile but supposedly OnePlus unlocks them before sending them out to some sellers. I sort of believe the guy but is it true? If it were locked to T-Mobile could I get it to make phone calls?
Obviously I'm not talking about a hack. Because I thought locked was locked. Is it possible for a locked T-Mobile phone to make calls on the AT&T network?
Also I got AT&T to make it work but once I removed the sim/reinsert it, the thing displays weird behavior. Wifi goes in and out. It forgets the apn settings that were set prior.
redemptionx11 said:
I worked at AT&T until a few months ago. I can tell you confidently that their tech support is a bunch of dummies. Employees have their own tech support line to call and that one is just as bad. They would routinely tell customers they needed to go to a store to have something done. Then they'd get to the store to find out we literally cannot do that at the store. Stuff like that was super common. One of them even bet me $1,000 that iPhones DON'T reboot when they update, which we all know is all the way wrong.
I halfway think support tells people that stuff on purpose to try to get them to buy something from AT&T. God, I could rant about that place for hours lol
Click to expand...
Click to collapse
I agree, ATT was the most horrible experience I ever had. Tracfone may have even had a better customer support.
Verizon CDMA service may be antiquated, but their customer service and tech support is 2nd to none.
KLit75 said:
Maybe you can answer this for me. Just because a T-MOBILE locked phone is able to make calls and texts on AT&T, does that automatically mean it should be able to connect to mobile data?
I was able to get it to make calls after a refresh signal was sent out, but it could not connect to mobile data . My sim is fine. I even popped it my son's Pixel 3a and LTE started immediately.
The seller is saying the fact that it was able to make calls means it is able to connect to mobile data. And I should take it to AT&T before returning it. I don't think he's scamming. He says he has the same phone on AT&T. And he's sold Hundreds of them. That kinda checks out based on reviews and some of those people do report it works with AT&T.
These phones are hd1907 T-Mobile but supposedly OnePlus unlocks them before sending them out to some sellers. I sort of believe the guy but is it true? If it were locked to T-Mobile could I get it to make phone calls?
Obviously I'm not talking about a hack. Because I thought locked was locked. Is it possible for a locked T-Mobile phone to make calls on the AT&T network?
Also I got AT&T to make it work but once I removed the sim/reinsert it, the thing displays weird behavior. Wifi goes in and out. It forgets the apn settings that were set prior.
Click to expand...
Click to collapse
It should have no trouble using data BUT you'll have to change the phone's APN settings to match your carrier before you can. You can google it and find them. It's not hard at all to change. Somewhere under the "network" settings.
Someone correct me if I'm wrong, but as I've understood it the phone will keep trying to access the previous carrier's data network, which is why you didn't have data. But as said above the APN settings should fix that.
redemptionx11 said:
It should have no trouble using data BUT you'll have to change the phone's APN settings to match your carrier before you can. You can google it and find them. It's not hard at all to change. Somewhere under the "network" settings.
Someone correct me if I'm wrong, but as I've understood it the phone will keep trying to access the previous carrier's data network, which is why you didn't have data. But as said above the APN settings should fix that.
Click to expand...
Click to collapse
If I told you the whole story, which started on Friday morning and in the end involved 7 AT&T employees, 6 on the phone and 1 in the store, it'd probably be removed because it's spam. Too long of a story.
But in the end it didn't get to connect to mobile data..at least not consistently. I took it to the store. The guy removed the Sim reset it, turned it off and boom! - LTE, calls and texts. His theory was it takes a little while for it to unlock and get set so when I tried it the other night it wasn't working.
I was happy because it literally took 5 minutes. I ran some errands and was out for like another 2 hours. Everything was working. Some point between the store and my driveway, the signal was gone. I never got it back. Of course I tried reset, remove Sim, reboot, change apn settings.
I called AT&T... the first woman didn't even know what CDMA and GSM was. I politely got her to transfer me to the guy who 'knows his stuff'. He got it to make calls again, but in the end concluded this device can't work on this network. I didn't wanna argue anymore. He had a BS answer for everything including 'If it doesn't work, why DID it work just a half hour ago?'
He said I could try getting a new sim. They have no idea. My son's sim won't work on this phone but pop it in my old phone and it works. And my sim works in his phone. It's not the sim. I know it.
KLit75 said:
It's HD1907 T-MOBILE. What I need is HD1905. He sent me the wrong one.
I only realized a few hours ago I had no mobile data. I had got calls and texts to work this morning.
After spending 45 minutes on the phone with AT&T they concluded my phone is not recognized as LTE compatible. WTF? It's not even connecting to 3g.lb
I've been buying unlocked phones for years. My last phone was OP5T. I've never experienced anything like this.
I'll probably take it to the corporate store tomorrow but doubt it'll help. Has anyone had problems with AT&T and this phone?
I'm just putting it out there, hoping somebody has an idea...
Click to expand...
Click to collapse
That's strange as they both litterly have the same bands besides 71 that 1907 has
This is att bands and oneplus bands
If u haven't tryed I would recommend using the failed to go to your settings and toggle around there all bit make sure it's set for north america
rob420p said:
That's strange as they both litterly have the same bands besides 71 that 1907 has
Click to expand...
Click to collapse
I took it back to AT&T yesterday. There was someone in front of me so I sat down, removed the sim from my working phone, popped it in the op7t... instant lte, calls & texts. The same thing happened the day before I went to at&t. It worked perfectly well there in the store and even 2 towns away but not m my neighborhood which DOES connect to LTE, has for years on every phone we've had.
The tech (if you can really call him that) updated the sim. That got it done. I've had a working phone for 24 hours. BUT no LTE. It only connects to H+.
I haven't had time to call or go back to the store, but I'm hoping it's an easy fix. This has been the weirdest week I've ever had dealing with a phone. I've learned that AT&T doesn't know what they're doing. I still can't believe I needed to explain what GSM and CDMA was to one of the people on the call.
I'm gonna try a few things tonight after work.
KLit75 said:
I took it back to AT&T yesterday. There was someone in front of me so I sat down, removed the sim from my working phone, popped it in the op7t... instant lte, calls & texts. The same thing happened the day before I went to at&t. It worked perfectly well there in the store and even 2 towns away but not m my neighborhood which DOES connect to LTE, has for years on every phone we've had.
The tech (if you can really call him that) updated the sim. That got it done. I've had a working phone for 24 hours. BUT no LTE. It only connects to H+.
I haven't had time to call or go back to the store, but I'm hoping it's an easy fix. This has been the weirdest week I've ever had dealing with a phone. I've learned that AT&T doesn't know what they're doing. I still can't believe I needed to explain what GSM and CDMA was to one of the people on the call.
I'm gonna try a few things tonight after work.
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That is strange and pethetic the att peaple.dont know what they are doing.if I have time later I'll try to research she if anything comes out
rob420p said:
This is att bands and oneplus bands
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Thanks for sharing, but I've never really needed to mess around with the settings as far as mobile data goes. It either works out of the box, or at most I'll need to put the apn in manually on some custom roms, but even that's rare.
How does the info you provided apply to my problem. I know the phone can connect to lte. It was connecting briefly on Monday afternoon and while I was at At&T yesterday, it connected before they updated the sim.
Is there something I can do with this? It's a sincere question. I'm not sure if I can apply it somehow. Thanks
KLit75 said:
Thanks for sharing, but I've never really needed to mess around with the settings as far as mobile data goes. It either works out of the box, or at most I'll need to put the apn in manually on some custom roms, but even that's rare.
How does the info you provided apply to my problem. I know the phone can connect to lte. It was connecting briefly on Monday afternoon and while I was at At&T yesterday, it connected before they updated the sim.
Is there something I can do with this? It's a sincere question. I'm not sure if I can apply it somehow. Thanks
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I think his point was to show that the OP7T does in fact work on all AT&T bands. Normally you don't need to do anything with this if the SIM is provisioned correctly.
What are the chances that you are on the edge of the local AT&T LTE signal so it drops to H+ because that's a stronger connection? At the AT&T store the LTE signal is stronger so the phone is favoring that one. Some phones are more sensitive to signals than others (or more aggressive at switching to a stronger band).
Try using a program like "LTE Discovery" and see what bands you actually are connecting to. It can also let you know what is going on in your area with tower location.
Lost Dog said:
I think his point was to show that the OP7T does in fact work on all AT&T bands. Normally you don't need to do anything with this if the SIM is provisioned correctly.
What are the chances that you are on the edge of the local AT&T LTE signal so it drops to H+ because that's a stronger connection? At the AT&T store the LTE signal is stronger so the phone is favoring that one. Some phones are more sensitive to signals than others (or more aggressive at switching to a stronger band).
Try using a program like "LTE Discovery" and see what bands you actually are connecting to. It can also let you know what is going on in your area with tower location.
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I'll try that. Thanks.
That's what I said but the guy at the store said it's really not a stronger signal at the store. Plus I know I can get LTE at my house and in the store because all our other phones connect, even this one, briefly at the at&t store.
The seller have me a code to input into the dialer but I'm waiting for tomorrow to put it in. It's my day off. If something goes wrong it won't be a huge deal. I will look into what you sent at some point though.
Droid_Nut said:
Yes I have the HD1905, but you can totally forget about vowifi with any provider except for T-Mobile. I tried them all, I even had a tech from VZW work diligently to try and get vowifi working. I told him to try and add my IMEI to the approved list, and that did not work either. As far as AT&T, they did not give me the time of day, they just told me I needed and AT&T device, period.
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Your posts are bouncing between VoLTE & VoWiFi.
LTE bands and VoLTE work fine on Verizon's network.
Verizon allows VoWiFi on the OP 8's that they sell. They will not activate VoWiFi on the OP 7 series, the claim is that the phone did not go through their security testing. IIRC VZW doesn't allow VoWiFi on any outside phone.