Moving Sprint GS4 to T-Mobile - Sprint Samsung Galaxy S 4 Q&A, Help & Troubleshoot

I'm trying to get my unused Sprint GS4 onto T-Mobile. I have done the SIM Unlock and on a slightly modified Sprint MF9 Rom. What is the simplest way to get it to work well with T-Mobile?
I've seen GPE ROMS for Sprint and T-Mobile. Can I just flash T-Mobile GPE rom and be done? Also, can I upgrade to the latest baseband?
Thanks.

Related

SPH-L720 into SGH-M919

Someone commented about turning their Sprint GS4 into a T-Mobile GS4 running a google edition rom.
i have been searching and cant find anything about this but i remember reading it makes it easier to domestic unlock with tmobile and att since its a tmobile firmware
does this firmware go on the sprint GS4 easily or is their custom firmware about this?
thanks
There is already a discussion about unlocking the SGS4 to work with T-Mobile.
You can do it! Use that search tool.

[Q] T-mobile firmware on ATT S4?

I was going to do the update to NB1 on my ATT 1337 S4. I'm a little nervous about it, I won't lie I haven't heard many good things about it.
I digress.
My question is, is it possible to put the T-mobile firmware onto my ATT S4? My service is through T-mobile currently and I also read the 4.4.4 update is coming out for the T-mobile S4.
Bbychaos said:
I was going to do the update to NB1 on my ATT 1337 S4. I'm a little nervous about it, I won't lie I haven't heard many good things about it.
I digress.
My question is, is it possible to put the T-mobile firmware onto my ATT S4? My service is through T-mobile currently and I also read the 4.4.4 update is coming out for the T-mobile S4.
Click to expand...
Click to collapse
No, You cannot flash the Odin tar for tmobile phones, but you can flash a tmobile based ROM. Check out post 2 here. (Any ROM listed will work for you) ... http://forum.xda-developers.com/showthread.php?t=2616221
Also, the steps for upgrading are in post 5.

[Q] Can I flash Tmo Stock Image on AT&T Model?

Just ordered my wife a G2, it is unlocked however it is the AT&T variant and we are on Tmo. I have read that someone took a Tmo rom and made it possible to flash this to the AT&T model along with the KK baseband so that we can use Tmos wifi calling. However I would like to know if I can simply just flash a Tmo stock image and flash the KK baseband if this will work or am I looking into this all wrong?
This is where I read about the Tmo on AT&T rom:
http://phoneprouser.com/lg-g2-rom-that-supports-wifi-calling-on-att/1007/
Can anyone tell me if the ROM mentioned in the link above is this the latest ROM for the G2? Thank you in advance.
Side Question, if I want to flash Cyanogenmod and still want to retain the wifi calling can I flash the Tmo rom along with the aforementioned KK baseband?
https://download.cyanogenmod.org/?device=d800
ozzmanj1 said:
Just ordered my wife a G2, it is unlocked however it is the AT&T variant and we are on Tmo. I have read that someone took a Tmo rom and made it possible to flash this to the AT&T model along with the KK baseband so that we can use Tmos wifi calling. However I would like to know if I can simply just flash a Tmo stock image and flash the KK baseband if this will work or am I looking into this all wrong?
This is where I read about the Tmo on AT&T rom:
http://phoneprouser.com/lg-g2-rom-that-supports-wifi-calling-on-att/1007/
Can anyone tell me if the ROM mentioned in the link above is this the latest ROM for the G2? Thank you in advance.
Side Question, if I want to flash Cyanogenmod and still want to retain the wifi calling can I flash the Tmo rom along with the aforementioned KK baseband?
https://download.cyanogenmod.org/?device=d800
Click to expand...
Click to collapse
THIS IS AN ABSOLUTE AND COMPLETE NO GO, FLASHING A FACTORY IMAGE FOR A DIFFERENT MODEL CAN HARD BRICK YOUR DEVICE, IN FACT I'D PRETTY MUCH GUARANTEE IT!!! GO INTO THE ATT DEVELOPMENT THREAD AND FIND SAID T MOBILE ROM FOR YOUR DEVICE, FLASH THAT IF YOU WANT TO. As an answer to the side question there is no way to retain wifi calling on cyanogenmod, especially on a non tmo device. Finally as for the baseband find out what baseband the respective ROMs need (the tmobile one for ATT G2s or the CM build you choose to use).

[Q] which update should I use? AT&T S5 with a T-Mobile SIM card.

I have an unlocked AT&T_ S5 with a T-Mobile SIM card. I want to update to lollipop and my phone won't update automatically through my settings so I suppose I gotta d/l and update but which update do i d/l? AT&T or T-Mobile?
The at&t s5 (SM-G900A) variant has locked bootloaders, meaning you can't flash any other ROM's besides the stock att rom, unlike the rest of the T-Mobile or other s5 variant communities do. At&t hasn't released the lollipop update yet, and they released an OTA update, still KitKat, recently. So head on over to the att section of the forum and you will see there is a safe strap method available, but I haven't personally tried it.

Will this take T-Mobile firmware?

I got my wife an AT&T a few years ago with my upgrade credit (I'm on AT&T). She's been using it as an amped-up PDA without a phone plan. This weekend, we unlocked it and put it on a T-Mobile pay as you go plan (because it's cheap, let's not get side-tracked with the why's, please). The phone hasn't been updated since she got it (it's still on 4.2.2), and I've convinced her it's finally time to let me do it. We're going to reset the whole thing, anyway, so my question is, will the unlocked AT&T version of the GS4 function properly with the T-Mobile GS4 firmware?
You want to flash T-Mobile firmware to the att s4 or do you want to know if an updated att s4 will work on the T-Mobile network?
I don't think you can flash T-Mobile firmware to the att s4 as this could brick the phone.
Since T-Mobile is transitioning off their aws system, the unlocked att s4 may work without any modification of the phone's modem software.

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