Database Users

[Q] AT&T LG G2 unlocked to use on T-Mobile Carrier Rom/Root Questions

Hey Guys,
So, I bought a AT&T LG G2 phone (I had a gift card at Best Buy- they don't carry T-Mobile). I heard that AT&T had the same towers so it's easier to work with an unlocked phone through them, so I bought it there instead from T-Mobile itself.
However, now I realized I don't have some of the features I would have on a T-mobile LG G2, such as my wifi calling, etc. Now, since the phone is unlocked (and I just got it rooted), would installing a T-Mobile rom affect my phone in any way, good or bad? Should I only use AT&T roms? How would I use T-mobile app services?
I searched google for 2 days and couldn't find anything relevant to my question. I've used this site a lot in the past year-two for rooting and such. Thank you guys in advance for continuing to support open development for android.

Wondering the same, about to switch to tmobile.

*Answer solved through own testing
trh1341 said:
Wondering the same, about to switch to tmobile.
Click to expand...
Click to collapse
Well, seems like no one has an answer to it...
Anyway, I went ahead and bought the phone. Since I do a lot of testing and rooting myself, this was the first time working on this type. I'm glad you posted, because I would have just forgotten about it now that I've solved the question I had... However, I figure it'd help in the future in case someone is also wondering the same.
Now, with that all stated... down to the answer.
If you bought an AT&T phone, and do an unlock code to use it on another carrier (such as T-mobile since they use the same towers), the rom you MUST use are the AT&T roms... NOT the T-mobile roms. The problem is, when you buy a AT&T phone, unlock it, and root your device to use another rom, it will not be compatible with T-Mobile roms because of the image files, etc. So yes- you will be losing all the features a T-Mobile rom would have such as wi-fi calling, etc...
However, a way to go about this (and it won't work with ALL the features that comes in a T-Mobile phone/rom), is to install a AT&T rom of your choice without all the crappy AT&T bloatware that you can't even use, and go to the T-Mobile section to look for an APK version of the files. Most of the time, T-Mobile roms will also remove the bloatware, however, some developers are kind enough to provide the bloatware APK files in case users would like to have certain one of them features, such as WiFi Calling.
So, that's how I did it, and it's working good.
PS- One last thing, you may have trouble going on the internet or playstore when you're unlocked to a different carrier. All you need to do is find the APN settings for your carrier. So in this case, I bought an AT&T phone, bought unlock code to use on my carrier T-Mobile, and got the T-Mobile APN settings set up, reboot, and I get all my 4G data, etc. You can get this by calling T-Mobile. Just say, you bought an unlocked phone and can't access data, internet, etc, and was told to set up a APN. Or, you can use google. :good:
Hope I helped everyone else out there!!

johnnyjrmoua said:
Hope I helped everyone else out there!!
Click to expand...
Click to collapse
So, would I be correct in stating that you will only get 4G in areas where it is offered @ 1900 MHz? What about 2100 MHz? Otherwise you will only get 3G HSPA+? As you can tell I'm a bit confused about compatibility between networks. According to wikipedia they will be doing away with 1900 MHz 4G by 2015. I'm trying to decide if it's worth buying an AT&T or Verizon phone to use on the T-Mobile pre-paid network because it seems the T-Mobile phones are not getting very much development.

johnnyjrmoua said:
Well, seems like no one has an answer to it...
Anyway, I went ahead and bought the phone. Since I do a lot of testing and rooting myself, this was the first time working on this type. I'm glad you posted, because I would have just forgotten about it now that I've solved the question I had... However, I figure it'd help in the future in case someone is also wondering the same.
Now, with that all stated... down to the answer.
If you bought an AT&T phone, and do an unlock code to use it on another carrier (such as T-mobile since they use the same towers), the rom you MUST use are the AT&T roms... NOT the T-mobile roms. The problem is, when you buy a AT&T phone, unlock it, and root your device to use another rom, it will not be compatible with T-Mobile roms because of the image files, etc. So yes- you will be losing all the features a T-Mobile rom would have such as wi-fi calling, etc...
However, a way to go about this (and it won't work with ALL the features that comes in a T-Mobile phone/rom), is to install a AT&T rom of your choice without all the crappy AT&T bloatware that you can't even use, and go to the T-Mobile section to look for an APK version of the files. Most of the time, T-Mobile roms will also remove the bloatware, however, some developers are kind enough to provide the bloatware APK files in case users would like to have certain one of them features, such as WiFi Calling.
So, that's how I did it, and it's working good.
PS- One last thing, you may have trouble going on the internet or playstore when you're unlocked to a different carrier. All you need to do is find the APN settings for your carrier. So in this case, I bought an AT&T phone, bought unlock code to use on my carrier T-Mobile, and got the T-Mobile APN settings set up, reboot, and I get all my 4G data, etc. You can get this by calling T-Mobile. Just say, you bought an unlocked phone and can't access data, internet, etc, and was told to set up a APN. Or, you can use google. :good:
Hope I helped everyone else out there!!
Click to expand...
Click to collapse
hey johnny, so you were able to get wifi calling feature on at&t branded lg g2 unlocked?

AT&T phone switch to T mobile Wifi calling do not work
trh1341 said:
Wondering the same, about to switch to tmobile.
Click to expand...
Click to collapse
Bought phone from ebay, it is an AT&T phone unlocked and want to use for T-mobile./ With T-mobile network I have to use wifi calling features in order to use in the house.
Could you please explain me how and how much it cost to get wifi calling feature in LG G2 ?

[Q] Putting D801(tmous) variant on ATT?

So I was looking over the difference between D800 (ATT) and D801 (TMOUS) and it seems that the reception difference is D800 has an LTE band 5 and the D801 has an 3G band of 1700. Whats the practical difference in reception? Seems like att is starting to grow band 5, and 1700 is tmobile. I travel to some remote areas and I think tmobile works there and att struggles (not sure at least it did 2 years ago), but do like the idea of freely switching between the two without having a tradeoff. will probably start with straight talk for att but will switch to the tmous if i cant get service where i move.
Please share thoughts on the best strategy...
thank you

Trying to get an answer on this also
Hi.
I've been trying to get an answer to this also, my post received no answers
http://forum.xda-developers.com/showthread.php?t=2506590
From my own, uninformed research I think we will be fine taking the T-mobile LG G2 (d801) to AT&T.
Looking at the information below taken from Phone Arena, the LTE band 5 isn't in all AT&T LTE phones
http://www.phonearena.com/phones/HTC-One-X-LTE_id7376
http://www.phonearena.com/phones/Samsung-Galaxy-Express-I437_id7515
http://www.phonearena.com/phones/Nokia-Lumia-920_id7471
http://www.phonearena.com/phones/Nokia-Lumia-925_id7850
Going off of this research I've ordered the D801 but It is possible I can turn out to be wrong.

This explains it more
http://www.androidpolice.com/2013/1...y-compatible-with-atts-lte-and-hspa-networks/

I'm currently using the Tmobile version on ATT and haven't had any issues so far. The only problem I'm having is it appears there is substantially less support for the Tmobile version.

snobrdr2324 said:
I'm currently using the Tmobile version on ATT and haven't had any issues so far. The only problem I'm having is it appears there is substantially less support for the Tmobile version.
Click to expand...
Click to collapse
Thx for the confirmation

snobrdr2324 said:
I'm currently using the Tmobile version on ATT and haven't had any issues so far. The only problem I'm having is it appears there is substantially less support for the Tmobile version.
Click to expand...
Click to collapse
The D801 CM maintainer was out of county apparently and I'm guessing he held off on uploading everything since he's been gone for a couple weeks and didn't want to push something that would be broken for weeks by chance. We'll start seeing a good bit of roms in the coming weeks and by everything moving to KitKat we'll be in as good of shape as any other device since our devices are plenty similar to each other.

LG G2 d801 (t-mobile) with AT&T straight talk activation help...
I just tried to activate my factory unlocked lg g2 d801 with straight talk with at&t. I set my APN up for the at&t network and used the at&t sim card that came with the straight talk bundle. Now on the lock screen it says invalid SIM card.
What do I have to do to make my phone work? Thanks in advance!

I borked phone flashing a T Mobile based ROM on my canadian G2 (since they both are the D801; by personal research I've observed the D803 works as intended on my canadian D801). I will try later today to flash yet again another T Mo rom on it, but this time I'll flash back the stock kernel. I'll report back.
Just to play it safe, I'd reflash your stock kernel... that way it won't act funny all of a sudden along the way.

omegajester said:
I borked phone flashing a T Mobile based ROM on my canadian G2 (since they both are the D801; by personal research I've observed the D803 works as intended on my canadian D801). I will try later today to flash yet again another T Mo rom on it, but this time I'll flash back the stock kernel. I'll report back.
Just to play it safe, I'd reflash your stock rom... that way it won't act funny all of a sudden.
---------- Post added at 02:34 PM ---------- Previous post was at 02:33 PM ----------
I borked phone flashing a T Mobile based ROM on my canadian G2 (since they both are the D801; by personal research I've observed the D803 works as intended on my canadian D801). I will try later today to flash yet again another T Mo rom on it, but this time I'll flash back the stock kernel. I'll report back.
Just to play it safe, I'd reflash your stock kernel... that way it won't act funny all of a sudden along the way.
Click to expand...
Click to collapse
Thanks, but I haven't rooted my phone and don't really intend to unless I absolutely need to. It's factory unlocked right out of the box.

It turns out Verizon was holding things up. I'm so happy I'm leaving them.
I tried setting up my APN, but now I can't download or view any media or picture texts in messenger or hangouts. Any suggestions?

LTE on AT&T with D801?
I can't seem to find a clear answer on whether it's possible to get LTE indication and speed on a D801 (TMo) used on AT&T.
Tech Support is giving me the "we can't guarantee data speeds on non-AT&T-branded phones".
This thread seems to say a TMo-branded phone (LG G2 in my case) CAN be provisioned for LTE:
http://forum.xda-developers.com/showthread.php?t=2506590
Most other threads say no, or there's no conclusion in the thread.
Can anyone give me the straight answer and tell me how to go about it? A way to get past the stone-walling AT&T techs?

I have H2O which uses AT&T's network but only HSPA+ and not LTE but the phone sees AT&T's LTE network when searching for networks.
In this thread there is a screenshot of a T-Mobile phone getting LTE indication on the AT&T network.

diamond12 said:
I have H2O which uses AT&T's network but only HSPA+ and not LTE but the phone sees AT&T's LTE network when searching for networks.
In this thread there is a screenshot of a T-Mobile phone getting LTE indication on the AT&T network.
Click to expand...
Click to collapse
Along with a lot of confusion about why his phone was working on LTE. As a relative newb to this stuff I couldn't make any sense of it.
Also in that thread was this comment:
T-Mobile devices support ALL AT&T and T-Mobile bands, except LTE Band 5 (used by AT&T in a few rural areas). What's wrong is AT&T turns off LTE for non-AT&T devices. You have to call them up and give them the IMEI # of an AT&T-branded device (even if it's not yours and even if your SIM isn't in it/you don't plan on using it). They don't check after that.
Click to expand...
Click to collapse
So it might be possible to "trick" the carrier into allowing LTE?

Guys, I'm not getting data and sms on my unlocked d801 on at&t. Can anybody share APN settings for at&t that work?
Sent from my XT1053 using xda app-developers app

I got my unlock tmo g2 working on at&t with LTE, mms, and Microsoft exchange email after some effort. It's also connecting to my 3g microcell.
Sent from my XT1053 using xda app-developers app

Sorry for hijacking but anyone moving from D801 to ATT can share their APN Settings. Cant get internet to work to save my life!

AT&T lg g2 using tmobile sim, No 4g/LTE

Hey, I've used xda plenty in the past before but never had to post a question so bear with me.
I bought a att lg g2 and a tmobile sim to go with it. I can only get 3g, no lte. Its very slow. I did some reading and it looks discouraging. I live in south texas.
Is there anyway to turn on the radio bands i need to make 4g/lte work? I saw a thread about how to turn on lte for custom roms. Will that work or not? I think tmobile uses bands 17 19 and 21. There are those bands in the hidden menu on my phone but idk. It looks like some att lg g2s work with tmobile lte and others do not. Thanks for your help.
Ps. Im on another forum where the attitude towards noobs is like xda's so take it easy on me lol.

First thing first, have you rooted, unlocked the phone and bootloader?
Sent from my Galaxy Nexus using Tapatalk

comk4ver said:
First thing first, have you rooted, unlocked the phone and bootloader?
Sent from my Galaxy Nexus using Tapatalk
Click to expand...
Click to collapse
Yes, its rooted and unlocked for different carriers. Su is installed but not a custom recovery. Im not really interested in installing a custom rom at this point.

From the carrier pages:
AT&T LG G2 has bands 1,2,4,5 & 17
T-Mobile LG G2 has: 2,4,7 & 17
7 is 2600MHz so it's not relevant for the US
I would say it's not a phone capability problem
The T-Mobile LG G2 has a seting in networks for network mode: GSM, WCDMA, GSM+WCDMA, GSM+WCDMA+LTE
The same can be achieved with the Phone Info app https://play.google.com/store/apps/details?id=myc.phone.PhoneInfo
Also make sure you are using the fast.t-mobile.com APN http://support.t-mobile.com/docs/DOC-2090

That apn you linked above does not work on my phone. I talked to a tmobile rep this morning and thats the one he gave me. When that one didnt work i got referred up the line to a rep that sent me texts with setting patches that supposedly set my phone up like a tmobile one but i didnt get 4g/lte from that and it wasnt the lte apn. I did, however, find another fast.tmobile.com apn with a little bit different settings than the one linked above that gave me 3g. Im at a loss, I guess.

LTE works fine on this phone, I use a D800 on T-Mobile, you just need the LTE APN. That's what I use on mine.
Sent from my LG-D800

Im using the apn from this link and no 4g. Just edge. Its a lte apn tutorial. I know i have tmobile lte in my area. Thanks for the help so far tho.
http://forum.xda-developers.com/showthread.php?t=2236735

Do yall think it would be possible to install a tmobile kernel to maybe turn on bands that i need for tmobile lte? Tmobile uses bands 1700 and 2100. In some areas, it looks like, att phones do have tmobile lte .

jordylee18 said:
Do yall think it would be possible to install a tmobile kernel to maybe turn on bands that i need for tmobile lte? Tmobile uses bands 1700 and 2100. In some areas, it looks like, att phones do have tmobile lte .
Click to expand...
Click to collapse
Only use D800 kernels on this model.
Transmitted via Geass

Make sure there is a dash in t-mobile in fast.t-mobile.com

Did you ever get this fixed?

Ace42 said:
Only use D800 kernels on this model.
Transmitted via Geass
Click to expand...
Click to collapse
Thanks for Attached Thumbnails, I changed mine to match, and it works.
But it does take sometime to connect, especially inside house.
I'm running CM11 nightly 12/26.

[Q] Verizon LG G2 on T-Mobile: 4G Only Stock ROM?

Hey Everyone. Currently I'm running on an S3 flashed to PagePlus. Family friend was kind enough to let me in on their T-Mobile plan. I would like to get a LG G2 and due to price, as many others, I was planning on an unlocked Verizon G2. So, now for my questions... I live in Dayton, OH half the year and Breckenridge, CO the other half. From the coverage map, I should get LTE. I understand that people have success getting 4G LTE by flashing the stock T-Mobile ROM and patching it with the Flex Patch. This is fine, but my ultimate question I couldn't seem to find an answer to anywhere; is it possible to flash other rom's (G3 rom's or CM or anything) and still get 4G LTE? My assumption is no, but before I buy a T-Mobile G2 for $50 more, I thought I'd ask. Sorry for the long post, and thank you in advance everyone!
Edit: Also, as long as I would get HSPA/HSPA+ with all other rom's, I would be EXTREMELY content! Would I have HSPA/HSPA+ on all other roms?

Anybody? Anything?

[Q] Rooted At&t phone on Tmobile, how do I get...

Hey guys. I have and Unlocked and rooted i9505 S4 (at&t branded), currently running the Goldeneye rom. I recently switched to T-mobile and wanted to make use of their wifi-calling feature but even after installing the t-mobile sim card, I dont see an option for wifi calling anywhere.
can anyone suggest a way I can get wifi-calling on my unlocked/rooted at&t branded s4? thanks!

I think you might need to take it to T-Mobile store. From my understanding, it is only for SGH-M919. AT&T phones are not compatible, even if you switch carriers. You may have to flash a T-Mobile Touchwiz rom, not sure. If anyone thinks I'm wrong, feel free to correct me. :cyclops:

RootNerd said:
I think you might need to take it to T-Mobile store. From my understanding, it is only for SGH-M919. AT&T phones are not compatible, even if you switch carriers. You may have to flash a T-Mobile Touchwiz rom, not sure. If anyone thinks I'm wrong, feel free to correct me. :cyclops:
Click to expand...
Click to collapse
Thx for the reply rootnerd! yea thats the problem i'm having... I read that some people got it working with a flashed a T-mobile rom while others said they couldn't. So I was trying to see if anyone could shed some light as to which T-mobile roms with the wifi calling feature could be flashed via safestrap on an at&t phone, because I don't really want to buy a new phone from t-mo just yet

thatwasntnice said:
Thx for the reply rootnerd! yea thats the problem i'm having... I read that some people got it working with a flashed a T-mobile rom while others said they couldn't. So I was trying to see if anyone could shed some light as to which T-mobile roms with the wifi calling feature could be flashed via safestrap on an at&t phone, because I don't really want to buy a new phone from t-mo just yet
Click to expand...
Click to collapse
Yeah this is where AT&T users would know the answer. I currently have a T-Mobile S4 but I really don't think it's worth keeping Touchwiz just for WiFi calling. But everyone has there own perspective.