[Q] unable to access 4G-LTE on unlocked LG G3 D850 - G3 Q&A, Help & Troubleshooting

Hello all,
Prior to going to the US last September I had checked with my carrier (Vivo) in Brazil that the 4G-LTE frquency they use is 2.600MHz. When in the US, I managed to buy the above said device and brought home. Back home, as it was
unlocked my carrier's SIM card worked like a charm. It downloaded from the carrier's network the APN configurations and all was fine.
I went to the carrier's shop to try the 4G-LTE so I could bump up my contract. I tried the clerk's SIM card (he has 4G-LTE) and the signal icon changed from 4G to a smaller 4G with underscore LTE. But only the 3G and 2G APNs were found when searching networks manually.
I did rooted the device and removed the bloatware that came along using this xda-developers how-to.
Any idea how can I get 4G-LTE access on my device?
Thanks in advance,
gtludwig

gtludwig said:
Hello all,
Prior to going to the US last September I had checked with my carrier (Vivo) in Brazil that the 4G-LTE frquency they use is 2.600MHz. When in the US, I managed to buy the above said device and brought home. Back home, as it was
unlocked my carrier's SIM card worked like a charm. It downloaded from the carrier's network the APN configurations and all was fine.
I went to the carrier's shop to try the 4G-LTE so I could bump up my contract. I tried the clerk's SIM card (he has 4G-LTE) and the signal icon changed from 4G to a smaller 4G with underscore LTE. But only the 3G and 2G APNs were found when searching networks manually.
I did rooted the device and removed the bloatware that came along using this xda-developers how-to.
Any idea how can I get 4G-LTE access on my device?
Thanks in advance,
gtludwig
Click to expand...
Click to collapse
I suspect your APN need modifying. Check the clerks APN settings against yours.

Your APN is set wrong. I'm not sure how to change it on the stock AT&T ROM though.

fire219 said:
Your APN is set wrong. I'm not sure how to change it on the stock AT&T ROM though.
Click to expand...
Click to collapse
It's in the settings/tethering and networks/mobile networks/access point names. I have consumer cellular, but it leases from ATT, so it has slightly different settings, though ATT APN will work ok.

JeffDC said:
It's in the settings/tethering and networks/mobile networks/access point names. I have consumer cellular, but it leases from ATT, so it has slightly different settings, though ATT APN will work ok.
Click to expand...
Click to collapse
I had thought that menu was just tethering settings. That's embarrassing. :S

Related

No Manual Selection of Network

Hello I have an odd problem. I have an unlocked ZL which has been working fine on AT&T in the US. I travel to London a lot and have the international data option on my account and has always worked fine with my other phones. However after arriving in London my phone is stuck on Everything Everywhere (EE) and they don't have a roaming agreement with AT&T. This would be an easy problem to solve by manually selecting a different network but this is my problem. On my phone network selection, below, APN is not showing up. I originally thought this may have been disabled by the original network (Indonesia I believe) so I flashed the US generic firmware and Nordic but nothing I do makes it show up. Anyone else have this problem or solution?
Thanks
mloomis00 said:
Hello I have an odd problem. I have an unlocked ZL which has been working fine on AT&T in the US. I travel to London a lot and have the international data option on my account and has always worked fine with my other phones. However after arriving in London my phone is stuck on Everything Everywhere (EE) and they don't have a roaming agreement with AT&T. This would be an easy problem to solve by manually selecting a different network but this is my problem. On my phone network selection, below, APN is not showing up. I originally thought this may have been disabled by the original network (Indonesia I believe) so I flashed the US generic firmware and Nordic but nothing I do makes it show up. Anyone else have this problem or solution?
Thanks
Click to expand...
Click to collapse
Its DISABLED by your AT&T sim not the phone. If you notice by putting another Sim (Non AT&T) You can then use network search. Also ANY AT&T Branded Phone Network Search is LOCKED. I know your ZL is not AT&T branded but your SIM is which is causing it to lock it. My disapers when using an AT&T Sim, But when putting a T-Mobile USA sim or Orange UK sim BAM Network search shows up..
Also I think AT&T has Agremeants with EE , as EE can roam on AT&T here in the USA, EE is basically ORANGE UK, If they did not have aggremeants your phone WOULD NOT connect to the network. Make sure your data roaming is checked..
Thanks you are correct. Crazy considering they wanted me to manually select a network other than EE.
They're support is sometimes ehh. If they had never been out of the county they probably won't know. How is it over there . Always wanted to go.
Sent from my HTC One X+ using xda premium

Unlocked SGH-T989 works on one network but not another?

Hello all, I'm having a strange issue with the t-mobile S2. First off I'm not from the US, the person brought the phone for me to unlock. I sent the IMEI code and got back all the unlock codes. When I inserted my local sim card (bmobile) I noticed that the phone did not prompt to enter the unlock code. Instead it seemed to register on the network, I was able to make a call with the phone so I know it works.
Here is where it gets interesting, I inserted another sim (digicel) and it does not register on the network. I even went into the mobile settings and tried to switch the network manually but to no avail. My question is basically this, what? Why would a seemingly unlocked phone work on one network and not the other. I will have to ask for a refund now since the phone was already unlocked.
Here are the bands of the carriers:
MCC MNC Brand Operator Status Bands (MHz)
374 12 bmobile TSTT Operational GSM 850 / GSM 1900
374 130 Digicel Digicel Operational GSM 850 / GSM 1900 / UMTS 1900
Any thoughts?
amd-dude said:
Hello all, I'm having a strange issue with the t-mobile S2. First off I'm not from the US, the person brought the phone for me to unlock. I sent the IMEI code and got back all the unlock codes. When I inserted my local sim card (bmobile) I noticed that the phone did not prompt to enter the unlock code. Instead it seemed to register on the network, I was able to make a call with the phone so I know it works.
Here is where it gets interesting, I inserted another sim (digicel) and it does not register on the network. I even went into the mobile settings and tried to switch the network manually but to no avail. My question is basically this, what? Why would a seemingly unlocked phone work on one network and not the other. I will have to ask for a refund now since the phone was already unlocked.
Here are the bands of the carriers:
MCC MNC Brand Operator Status Bands (MHz)
374 12 bmobile TSTT Operational GSM 850 / GSM 1900
374 130 Digicel DigicelOperational GSM 850 / GSM 1900 / UMTS 1900
Any thoughts?
Click to expand...
Click to collapse
Never unlocked a phone....but does the new sim automatically setup new APN settings? If so, are they right. And if not....that's your issue maybe??
Again....totally guessing.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
kj2112 said:
Never unlocked a phone....but does the new sim automatically setup new APN settings? If so, are they right. And if not....that's your issue maybe??
Again....totally guessing.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Click to expand...
Click to collapse
Yes it sets the appropriate APN settings, sometime I also have to go into the mobile networks menu and scan for networks and always update it :S very very strange, could flashing a different baseband help?
amd-dude said:
Yes it sets the appropriate APN settings, sometime I also have to go into the mobile networks menu and scan for networks and always update it :S very very strange, could flashing a different baseband help?
Click to expand...
Click to collapse
I believe you still need the new T-Mobile radio....I think.
I'd triple check the apn settings tho....every line. They'd be different for each sim/carrier. Try Googling the apn setting for the carrier. Throw t989 in the search....in case someone has same phone on same network as you.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
kj2112 said:
I believe you still need the new T-Mobile radio....I think.
I'd triple check the apn settings tho....every line. They'd be different for each sim/carrier. Try Googling the apn setting for the carrier. Throw t989 in the search....in case someone has same phone on same network as you.
______________________________
Sent from my cellular telephone. Battery problems? >>>> http://forum.xda-developers.com/showthread.php?t=2461864
Click to expand...
Click to collapse
Thanks mate, i'll give it a try.
The last time I had a T989 that worked on one network (AT&T) but not the other (T-Mobile), it was because it was reported stolen.
I had bought it used, and had no idea it was stolen.
I checked the IMEI here:
http://www.t-mobile.com/VERIFYIMEI.ASPX

Accessing service menu

I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
bmpolska said:
I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
Click to expand...
Click to collapse
Verizon is cdma. Korea and most of the world is gsm. Like t mobile
xantanion said:
Verizon is cdma. Korea and most of the world is gsm. Like t mobile
Click to expand...
Click to collapse
I figured, but does anyone know how to access the hidden menu to view all the bands available?
5457#*500#
That should do however I can't access the main hidden menu to disable the throttling.
Thanks for the info 3rd degree.
I tried that on my H815 G4 but it didn't work (invalid code).
I also tried 5457#*815# but that didn't work either.
Unfortunately the 3845#*modelnumber# that always worked previously doesn't now. eg 3845#*815# just gives the invalid code error.
*Edit* the answer is in this thread:
http://forum.xda-developers.com/g4/help/how-to-enter-g4-hidden-menu-t3122373
the code that works for me is 277634#*#
bmpolska said:
I was recently in Korea for work, so I picked up the G4 to bring back to the US. I bought it from SK Telecom, they told me phone should work globally. Now being back in the US, i popped in my Verizon Sim card and no mobile network is available. Phone is reading my sim and has the correct APNs, but still no connection. Does anyone know how to access the service menu to change bands?
Click to expand...
Click to collapse
If you call 277634#*# it wil open the menu and Go into Field Test > Modem Settings and will let you change it
Rehok said:
If you call 277634#*# it wil open the menu and Go into Field Test > Modem Settings and will let you change it
Click to expand...
Click to collapse
For some reason, field test isn't an option on my Tmo variant. Any ideas? (i'm trying to see what LTE bands are enabled)
anyone knows the marshmallow code?

[Q] ATT signal troubles on H815 US

I purchased my phone (h815 US model) online from swappa and I love the feel and look of the phone, Love the camera, BUT my phone wants to stay on hspa all the time. Where i had 3 or 4 bars on my s5 active I get HSPA unless I go in to settings and sellect ATT:LTE from network operators which only last until my phone goes to sleep then im back on hspa. Anyone else experiencing this? Or anything i should try? Thanks in advance for any help!
Bumpers just in case someone who knows didn't see it. Sorry won't bump it again!
Craleb said:
Bumpers just in case someone who knows didn't see it. Sorry won't bump it again!
Click to expand...
Click to collapse
Maybe with hidden menu access via dialer,you can permanently enabled it...I don't know the actual code that might work for your device..but you can find it through here..In general threads maybe
I had to set the proper APNs on my H815, additionally I had to tell it to use GSM/WCDMA/LTE Auto under Network Mode in the Mobile Networks settings.
AT&T APN settings
www.att.com/esupport/article.jsp?sid=KB424489&cv=820
Pic of Mobile Networks
http://imgur.com/UtrfVUZ
After that, it's been using LTE where available.
Daptonic said:
I had to set the proper APNs on my H815, additionally I had to tell it to use GSM/WCDMA/LTE Auto under Network Mode in the Mobile Networks settings.
AT&T APN settings
www.att.com/esupport/article.jsp?sid=KB424489&cv=820
Pic of Mobile Networks
http://imgur.com/UtrfVUZ
After that, it's been using LTE where available.
Click to expand...
Click to collapse
Thank you @Daptonic . I was attempting to use the "ATT nxtgenphone" APN because it works better on ATT devices but I guess the ATT Phone APN is needed for non ATT devices. Rebooted phone and it went straight to 4g. Thanks for responding.
Edit: dammit, it went back to hspa again......

Use this phone on Cricket Wireless?

I'm currently using the AT&T H810 on Cricket Wireless and am wondering how to get the data to work with this Verizon variant. I can make calls when I put my Cricket SIM card in, but I get no data. Any ideas or anyone already get this working? Thanks!
Did you change the APN settings? Also, AT&T uses LTE bands: 2, 4, 5, and 17 primarily. The Verizon G4 doesn't have band 17. so you are not going to get very good coverage in buildings or at far distances from the tower.
geoff5093 said:
Did you change the APN settings? Also, AT&T uses LTE bands: 2, 4, 5, and 17 primarily. The Verizon G4 doesn't have band 17. so you are not going to get very good coverage in buildings or at far distances from the tower.
Click to expand...
Click to collapse
I didn't but I think cricket did it remotely when I put the SIM card in, how do I check? Also is it possible to unlock band 17? I've seen posts here and there talking about unlocking different bands on variants which don't have them unlocked by default. Thanks.
petermg said:
I didn't but I think cricket did it remotely when I put the SIM card in, how do I check? Also is it possible to unlock band 17? I've seen posts here and there talking about unlocking different bands on variants which don't have them unlocked by default. Thanks.
Click to expand...
Click to collapse
I know I had to put the APN settings in myself when using a T-Mobile SIM. I would Google "Cricket APN Settings" and then go to the settings on your phone (under more I believe), and edit the APN. You can't unlock band 17 unfortunately.
geoff5093 said:
I know I had to put the APN settings in myself when using a T-Mobile SIM. I would Google "Cricket APN Settings" and then go to the settings on your phone (under more I believe), and edit the APN. You can't unlock band 17 unfortunately.
Click to expand...
Click to collapse
Yeah, why can't we unlock band 17? I tried using a few methods listed where you write to the NV ITEMS and enable all kinds of bands, but it still didn't work. I only got LTE when I force it via a hidden menu setting, but then I couldn't make or receive any calls. I get HSPA and HSPA+ but that's it and there's a constant icon in the notification bar of a white sim card with a question mark on it...!?
petermg said:
Yeah, why can't we unlock band 17? I tried using a few methods listed where you write to the NV ITEMS and enable all kinds of bands, but it still didn't work. I only got LTE when I force it via a hidden menu setting, but then I couldn't make or receive any calls. I get HSPA and HSPA+ but that's it and there's a constant icon in the notification bar of a white sim card with a question mark on it...!?
Click to expand...
Click to collapse
Because the phone doesn't support it. You can't unlock bands that the phone doesn't have to begin with.
Sent from my Nexus 6P using Tapatalk
Is there anything special to get calls to work on Cricket ? Updated APN settings for data but calls still did work.
JeffATL said:
Is there anything special to get calls to work on Cricket ? Updated APN settings for data but calls still did work.
Click to expand...
Click to collapse
When I tested with my Cricket SIM card calls just worked. I didn't have to do anything. However as you mentioned I had to manually update the APN to get data working.
petermg said:
When I tested with my Cricket SIM card calls just worked. I didn't have to do anything. However as you mentioned I had to manually update the APN to get data working.
Click to expand...
Click to collapse
That is odd. I wonder if I met someone at a Cricket wireless there if techs would help getting it working.

Categories

Resources