ATT Band 4 lte no connectivity - Google Pixel 2 XL Questions & Answers

Hello everyone. I have had my pixel 2 xl for about 3 weeks now. I love this phone except for one bug. At random times my phone would loose lte connectivity for no reason (while still showing full bars and lte). Digging deeper i have found that when my phone connects to aws band 4 i loose all internet connectivity. I used network signal guru to dissable band 4 and band 66 this "fixes" my issue. Obviously i would like that extra capacity band since it is in use in my area(Pittsburgh pa). Does anyone else have this issue? Is it tower related? Phone related? This also happend on stock and custom roms flashing the stock image both times. Thanks for any help!

Casey Walt said:
Hello everyone. I have had my pixel 2 xl for about 3 weeks now. I love this phone except for one bug. At random times my phone would loose lte connectivity for no reason (while still showing full bars and lte). Digging deeper i have found that when my phone connects to aws band 4 i loose all internet connectivity. I used network signal guru to dissable band 4 and band 66 this "fixes" my issue. Obviously i would like that extra capacity band since it is in use in my area(Pittsburgh pa). Does anyone else have this issue? Is it tower related? Phone related? This also happend on stock and custom roms flashing the stock image both times. Thanks for any help!
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Is this isolated to one area? Possibly connecting to the same tower? It sounds more like a network issue.

THEGAMEPLAY94 said:
Is this isolated to one area? Possibly connecting to the same tower? It sounds more like a network issue.
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Click to collapse
It does not seem isolated. It has happened in multiple places which is why i disabled the band entirely. If it was one tower wouldn't the whole tower be down and not just a certain band?

Related

(Q) LTE

Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
ajr0312 said:
Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
Click to expand...
Click to collapse
Not a root problem. Weird part is it only seems to happen to me in areas where there is really strong 4g, like in my house. At work, I am on a weaker 4g signal all day long without issues.
Try updating your profile and prl. Also make sure you have CDMA/LTE selected under mobile network.
ajr0312 said:
Is anyone experiencing LTE problems? I have great Spark signal in my area, but this phone seems to go to 3g all the time. My other phones are always on LTE, so obviously coverage is not the issue here. I will unroot thru Odin and see if it's a root problem.
Click to expand...
Click to collapse
I have the same problem. It keeps dropping my signal to 3g..even when it's on 3g sometimes it loses the 3g signal and reconnects to 3g.. the areas I go always have band 41 ...my previous phone was the nexus 5 and the signal was great...never drops connection like this...I thought it was only my phone as I haven't seen someone with the same problem in the forums. I'm in nyc area
Hopefully there is fix soon, it's very annoying to have this data issues.
Its not just your phone mine does the same thing at my work. I switch between multiple different band 25 26 and 41 towers as well as 3G towers. It occurs while the phone just sits on my desk. Theres a couple other threads discussing this. To my knowledge no one has any usable suggestions to help with this.
Sent from my SM-N910P using XDA Free mobile app
dmisselh said:
Its not just your phone mine does the same thing at my work. I switch between multiple different band 25 26 and 41 towers as well as 3G towers. It occurs while the phone just sits on my desk. Theres a couple other threads discussing this. To my knowledge no one has any usable suggestions to help with this.
Sent from my SM-N910P using XDA Free mobile app
Click to expand...
Click to collapse
My Note 4 does the exact same thing. I'm in a fully covered spark area, my old s4 always connected to lte with about 10 meg download. Awesome data offensive note 4 gets 3 to 5 meg download.. sometimes only getting 0.01 upload speed. That's the only thing that consistently bothers me about this phone. Oh yea it also constantly drops lte... to 3g. Feels like it's data is going through a dial up modem. I'm going to check the Sprint forums and see if I can find any good info.
Happened once in one place i was. Lower LTE signal and the phone kept dropping it and falling back to 3g, while my gf Lg G2 kept the LTE connection. I'm thinking they need to tweak the radio software in a future update.
Sent from my SM-N910P using Tapatalk
I've noticed that all the TriBand devices (Anything with Spark) switch to 3G for a bit then connect back to LTE/Spark. I haven't heard anything from work about this issue yet. I've also noticed its areas that have low Spark signal and high LTE signal.
My guess is it's a handoff problem. I will see all bars but LTE grayed out while riding the metro.
There is another thread touching on this too....I am having terrible LTE connection. My wife, who is an iPhone 6 user, gets 4 bars (or circles? lol) of LTE while I can sit next to her with 0-1 bars LTE or 3 bars 3G. I love this phone too much to complain alot about this but I am confident Sprint/Samsung will release an update to fix this.
The exact same problem occurred when the LG G2 got the spark update. It took 8 months for sprint to issues update that was specific to the LTE problem. I had to factory wipe before and after the update to get it to stick. The only difference is before the G2 was updated a toggle to airplane mode would bring the LTE back. That trick does not work on this phone. I will also add I drive alot at my job 6 hours plus a day. I go to the same spots to do paperwork in my truck. My Note 4 will not stay on LTE/Spark in locations where my G2 had a constant 10-15mbps connection.

LTE always reverting to 3G/H/H+ on ALL custom and all stock roms

I had LTE for around a month, then out of nowhere, no updates, nothing it disappeared, it's been gone for almost 2 weeks now.
My carrier (O2-UK) says there is no issue, I have literally no idea, I am almost certain it's just Oneplus phones.. but anyone have any info?
As I said, I've tried custom ROM, I've tried all the stock roms clean flashed.
ritchiedrama said:
I had LTE for around a month, then out of nowhere, no updates, nothing it disappeared, it's been gone for almost 2 weeks now.
My carrier (O2-UK) says there is no issue, I have literally no idea, I am almost certain it's just Oneplus phones.. but anyone have any info?
As I said, I've tried custom ROM, I've tried all the stock roms clean flashed.
Click to expand...
Click to collapse
The latest update oos3.4.2 has this issue. However, oos3.2.2 didn't have this issue as my LTE was connecting fine in India.
sidagg said:
The latest update oos3.4.2 has this issue. However, oos3.2.2 didn't have this issue as my LTE was connecting fine in India.
Click to expand...
Click to collapse
I've tried all roms, all OOS versions. Same issue.
No one else has this issue?! Saw a few on google but no fixes...
I can say that my phone often sticks to edge when I disable the wifi, it won't switch to 3g/4g unless I enable/disable it. I believe this was not the case with oos 3.2.1, with which my phone came with (only have it for a week now). This also happens with CM13. I think there was a update to the radio in the last oos update, so this might be the reason.
I am currently on OxygenOs 3.2.4 and my Lte seems to work properly. I tested it on a 4g area for about an hour or more and lte sticks with no drop to 3g. I will test it more and report back.
Lownita said:
I can say that my phone often sticks to edge when I disable the wifi, it won't switch to 3g/4g unless I enable/disable it. I believe this was not the case with oos 3.2.1, with which my phone came with (only have it for a week now). This also happens with CM13. I think there was a update to the radio in the last oos update, so this might be the reason.
Click to expand...
Click to collapse
I used to have solid good 4G here, now I don't no matter what I do. It isn't a network issue either
Did you double check your data SIM card is set to LTE? I had that setting change to 3g through a weird mix of circumstances. Was miffed I wasn't getting 4g and it turned out my SIM was set to 3g max.
nispen said:
Did you double check your data SIM card is set to LTE? I had that setting change to 3g through a weird mix of circumstances. Was miffed I wasn't getting 4g and it turned out my SIM was set to 3g max.
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Click to collapse
I get LTE if I go somewhere else, eg just outside off where I live.
But I had very good LTE where I lived too, inside, outside, then a week or two ago it vanished.
same here always reverting from 3g to 2g biggest issue with this phone
please fix this 1+ we all having hard time with this issue
my 1+3 never stays on 3g or LTE always go back to 2g
Silly suggestion, but are you on the correct APN? My oneplus initially connected on the incorrect APN for my carrier and I wasn't getting LTE, but 3G/H. Once I corrected it, my LTE was constant in the places it should have been.
Works fine for me you probably just getting a stronger h+ signal and it's jumping between mast's
fermata_ said:
Silly suggestion, but are you on the correct APN? My oneplus initially connected on the incorrect APN for my carrier and I wasn't getting LTE, but 3G/H. Once I corrected it, my LTE was constant in the places it should have been.
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Click to collapse
Yes I am
TheLoverMan said:
Works fine for me you probably just getting a stronger h+ signal and it's jumping between mast's
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Click to collapse
That would make no sense. I had LTE for a solid month sat right at this desk, now, none.
Where I am in the UK we have loads of cell towers around me and it's always jumping about. There is an app that lets you pick what cell tower you want to use, I have forgotten it's name but might be worth a look. Or could be they doing work in your area. Sorry can not think what else it could be
The oneplus 3 and oneplus 2 just don't like LTE, they will find any reason to go to H+/3
Same issue
I am on Three UK, have came from a Galaxy S7 Edge, and that got constant LTE in most areas, now my phone seems to prefer H+ a LOT more than LTE, reverting to it whenever it can, not great, OnePlus really needs to address this issue, wouldn't mind so much if LTE in my area wasn't 75Mbps, compared to 10Mbps on H+
Grudenkles said:
I am on Three UK, have came from a Galaxy S7 Edge, and that got constant LTE in most areas, now my phone seems to prefer H+ a LOT more than LTE, reverting to it whenever it can, not great, OnePlus really needs to address this issue, wouldn't mind so much if LTE in my area wasn't 75Mbps, compared to 10Mbps on H+
Click to expand...
Click to collapse
Same issue, same carrier, same frustration
Put me down for the same issue. With faster battery drain on 3.2.4, as well as random complete "no service" signal loss, for maybe 5 seconds. It's annoying as sin, and very disappointing. OnePlus at least is aware of the issue:
https://twitter.com/OnePlus_Support/status/765659124642222081
Fix
Have found no fix, have reverted to S7 edge, has MUCH better LTE and more reliable signal overall.

LTE+ (CA) slower than LTE

Howdy.
For quite some time i've found my phone to download quite slow on LTE+ Mobile Network.
LTE+ or LTE Advanced is nothing different than LTE with Carrier Aggregation. This means instead of using a single LTE Stream it will use 2 LTE streams at the same time.
Now my observation with LTE+ is that i get about 5mbps in Speedtest app, while using only one LTE Stream i get about 20-40mbps. Which is like.... utterly nonesene.
So, where does this come from?
A: Because i have a 709 Taiwan device with Taiwan Modem it's not working here in Europe
B: My Antenna is broken.
I've had the exact same behaviour on Stock Rom, LOS and AOSP based ROMs. So i don't think it's a software issue. (and yeah, i did RUU in between)
I've tested this over 6 months in 5 different cities with different ROM/Basebands from 1.92.709.1 onwards to 2.41.709.7 Similar results every time.
I've Changed Sim card from SALT to Swisscom and had LTE+ signal, same issue. 5-10mbps maximum.
Now then. Anyone here has tests of LTE and LTE+ and has a similar issue? Or is it working flawless for you guys?
How can you tell you are on CA?
Sent from my Pixel using Tapatalk
Because words are nice but screenshots are better... Here some screens from the root app Network Guru WHILE using speedtest in the background!
Normal:
And with LTE+ aka 2xCA
Just in case you're curious, here are some Screens from the Swisscom Network, as you can see they sue EARFCN 6300 and 1301 instead of 6400 and 1601 as Salt does.
lte+
Haldi4803 said:
Howdy.
For quite some time i've found my phone to download quite slow on LTE+ Mobile Network.
LTE+ or LTE Advanced is nothing different than LTE with Carrier Aggregation. This means instead of using a single LTE Stream it will use 2 LTE streams at the same time.
Now my observation with LTE+ is that i get about 5mbps in Speedtest app, while using only one LTE Stream i get about 20-40mbps. Which is like.... utterly nonesene.
So, where does this come from?
A: Because i have a 709 Taiwan device with Taiwan Modem it's not working here in Europe
B: My Antenna is broken.
I've had the exact same behaviour on Stock Rom, LOS and AOSP based ROMs. So i don't think it's a software issue. (and yeah, i did RUU in between)
I've tested this over 6 months in 5 different cities with different ROM/Basebands from 1.92.709.1 onwards to 2.41.709.7 Similar results every time.
I've Changed Sim card from SALT to Swisscom and had LTE+ signal, same issue. 5-10mbps maximum.
Now then. Anyone here has tests of LTE and LTE+ and has a similar issue? Or is it working flawless for you guys?
Click to expand...
Click to collapse
Hi small issue actually. You need to set 4g apn setting to your mobile.you may refer to your telco or google setting 4g for your courier. Like me using celcom malaysia also do manual setting 4g.auto apn setting only 3g.
I have also had this issue on my HTC 10. When I was seeing LTE +, I expected even faster speeds, however the opposite happened. Fortunately many places don't have LTE + so this is not affecting most of the times.
Sent from my HTC 10 using Tapatalk
No one else?
me too - suddenly.... after i flashed my stock rom - but before on stock it went over 30mbps

Connectivity Problems

Just got my Pixel 3a XL straight from Google, but out of the box my wifi and signal disconnect every few minutes or so when I'm actually using them. If idle then I have no problems.
I have tried flashing different factory images for the device but the issue persists.
Is anyone else having this issue or similar?
P$udo said:
Just got my Pixel 3a XL straight from Google, but out of the box my wifi and signal disconnect every few minutes or so when I'm actually using them. If idle then I have no problems.
I have tried flashing different factory images for the device but the issue persists.
Is anyone else having this issue or similar?
Click to expand...
Click to collapse
No problems whatsoever with wifi or 4g on mine. If flashing firmware images does not help then this to me sounds like a hardware problem. Your next step is going to be contacting Google support
No problems here at all. I have a good cellular signal better than my old nexus 6 and wifi is great. Better hit google support.
So I did request for a replacement from google, but I found that the wifi will disconnect a lot if it's on the 5 Ghz band. As for the cellular signal, that still hasn't been fixed.
P$udo said:
So I did request for a replacement from google, but I found that the wifi will disconnect a lot if it's on the 5 Ghz band. As for the cellular signal, that still hasn't been fixed.
Click to expand...
Click to collapse
Keep us posted on the situation. At least for me the 3aXL has excellent cellular reception. Went to a restaurant where I never had a signal with several phones and I had a signal. The wife was upset because her phone did not have a signal. We both have t-mobile.
No issues at all so far, but only two days with the phone.

Weak antenna?

Seeing 4 bars of LTE signal strength on my phone is like seeing a unicorn.
I live in Upstate NY and I have the A705MN phone.
I have tried three different sim cards, all of them of course GSM compatible. The result is exactly the same among all three. I typically get 1 or 2 bars LTE.
My previous phones under the same carrier and same sim card were typically 4-5 bars. (The Wifi strength, BTW, is equal to what I've seen from my other phones.)
What can I do to improve the signal strength?
I've seen posts by those with S10's where they do something to disable specific bands. But I'm not sure how to do that on the A70 phone. I've tried the specific codes that were mentioned in threads for the S10, but those codes do not work on the A70.
Please help. As much as I like the Samsung otherwise, this factor might be the reason I return the phone.
Yes same problem here
106IFA said:
Seeing 4 or 5 bars of LTE signal strength on my phone is like seeing a unicorn.
I live in Upstate NY and I have the A705MN phone.
I have tried three different sim cards, all of them of course GSM compatible. The result is exactly the same among all three. I typically get 1-3 bars LTE.
My previous phones under the same carrier and same sim card were typically 4-5 bars. (The Wifi strength, BTW, is equal to what I've seen from my other phones.)
What can I do to improve the signal strength?
I've seen posts by those with S10's where they do something to disable specific bands. But I'm not sure how to do that on the A70 phone. I've tried the specific codes that were mentioned in threads for the S10, but those codes do not work on the A70.
Please help. As much as I like the Samsung otherwise, this factor might be the reason I return the phone.
Click to expand...
Click to collapse
Try LTE only settings in settings>connections.
senseijtitus said:
Try LTE only settings in settings>connections.
Click to expand...
Click to collapse
Thank you for the screenshots.
I edited the access point that I'm using and changed it to LTE. But then when I go to select network mode, I cannot chose LTE Only. That option does not show up. I have tried rebooting after editing and selecting the Access Point, and I still do not see that option.
I have tried using apps such as 4g Network Only and have switched to LTE only, but that change does not seem to make a difference or the network goes down altogether.
Any suggestions?
senseijtitus said:
Try LTE only settings in set5ings>connections.
Click to expand...
Click to collapse
There was a post in the forum for using settings editor app to enable LTE only option. It will enable this option for both sims.
senseijtitus said:
There was a post in the forum for using settings editor app to enable LTE only option. It will enable this option for both sims.
Click to expand...
Click to collapse
I haven't been able to do this or find what it is you're referring to. I've tried adding a few values through Settings editor apps. Values such as "hw_networkmode_preference" etc.
Doesn't work.
But besides, why would setting the connection to LTE only fix this problem? I don't see how this is not a herring.
Most of the times I am see 2 bars of strength. Every now and then I get 3 bars, and more frequently than that I get only 1 bar. 4 bars is quite rare.
The real problem with this antenna is that if I step inside a supermarket or bathroom then my connection is gone. If I'm traveling around the state of NY, in more remote areas, I'm sure I will not have a chance of any connection.
I would LOVE this phone if it had a better antenna. I can deal with the subpar fingerprint reader. Just give me a strong antenna like all of my previous phones and then I'd be a happy camper!
I decided not to return the phone so I am stuck with this phone.
106IFA said:
I haven't been able to do this or find what it is you're referring to. I've tried adding a few values through Settings editor apps. Values such as "hw_networkmode_preference" etc.
Doesn't work.
But besides, why would setting the connection to LTE only fix this problem? I don't see how this is not a herring.
Most of the times I am see 2 bars of strength. Every now and then I get 3 bars, and more frequently than that I get only 1 bar. 4 bars is quite rare.
The real problem with this antenna is that if I step inside a supermarket or bathroom then my connection is gone. If I'm traveling around the state of NY, in more remote areas, I'm sure I will not have a chance of any connection.
I would LOVE this phone if it had a better antenna. I can deal with the subpar fingerprint reader. Just give me a strong antenna like all of my previous phones and then I'd be a happy camper!
I decided not to return the phone so I am stuck with this phone.
Click to expand...
Click to collapse
Setting the band to lte only would help in better reception even at low signal strength. One thing I had noticed in lte band is its consistency in connection speeds and call quality even with low signal. I think this is because of the high bandwidth of the lte signals. But I'm not an expert in it. Try changing the band to lte only. It should work better.
senseijtitus said:
Try LTE only settings in settings>connections.
Click to expand...
Click to collapse
Where did get this theme and icons in screen shots ?
Maystro said:
Where did get this theme and icons in screen shots ?
Click to expand...
Click to collapse
Bodhosativa theme from xda apps section.
senseijtitus said:
Setting the band to lte only would help in better reception even at low signal strength. One thing I had noticed in lte band is its consistency in connection speeds and call quality even with low signal. I think this is because of the high bandwidth of the lte signals. But I'm not an expert in it. Try changing the band to lte only. It should work better.
Click to expand...
Click to collapse
But I'm trying to get better signal, rather than better reception with low signal.
There's got to be something wrong with my phone. It blacks out if I step inside a bathroom in a building and such and it's very rarely at 4 bars.
A thing I noticed. If I go and select 2g/3g only (switch off 4g lte) my signal reception instantly switches to full (4 bars) Usually I get around 2 bars with LTE active.
The strange part is that even with lte off I can still receive an lte 4g signal when outside..this is perfect for me as it means i have a really strong signal (reception) indoors but still have the benefit of 4G outside. I don't quite understand it tbh. I mean i have switched to "2g/3g only" yet i still see 4G pop up in the status bar on my commute, and it definitely receiving 4G speeds. I'm not sure if it's a bug or not but I kinda like it.
Con500 said:
A thing I noticed. If I go and select 2g/3g only (switch off 4g lte) my signal reception instantly switches to full (4 bars) Usually I get around 2 bars with LTE active.
The strange part is that even with lte off I can still receive an lte 4g signal when outside..this is perfect for me as it means i have a really strong signal (reception) indoors but still have the benefit of 4G outside. I don't quite understand it tbh. I mean i have switched to "2g/3g only" yet i still see 4G pop up in the status bar on my commute, and it definitely receiving 4G speeds. I'm not sure if it's a bug or not but I kinda like it.
Click to expand...
Click to collapse
That's a terrific idea. Thank you for bringing that up.
I am implementing your suggesteion and it's nice to see 3-4 bars of strength again.
I don't need the fastest data connection. I just need a strong or secure basic data connection, since most of the time I'm not doing anything data intensive with my phone anyway when I"m away from a wifi connection.
But I'm not sure if my phone hops up to LTE at anytime.. I wish had the same "bug" that you do. I just started testing with your settings so I'll see if I can get it so that 3g is the preferred and basic network and 4g is the optional...
After another day, I'm back to LTE/3g/2g auto.
The general reception even for 3g or 2g is lower overall than what I saw from every other phone I have used. So in areas where I can expect to have a relatively low signal I get a particularly low signal for all bands, 4g, 3g, and 2g. That being the case, there's no practical difference if I cap my connection or not.
Samsung better warranty this phone. Does anyone know who I should call?
Since I bought my phone through an Ebay seller and the phone is West Carribean stock, not USA stock, which is where I am, I have no warranty on this phone.

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