My dad just bought a AT&T GS3 from a friend and I just finished unlocking it so he can use his T-Mobile service. We've confirmed his voice calling is working. I want to root this phone so I can flash a stock ROM that removes all the AT&T stuff. What's the proper way to root the unlocked phone now? Thanks in advance for any guidance you can provide.
PS. Any work around to get 3G vs Edge?
Look in the dev section EVERYTHING you need is in there. This question on how to root is asked so much its not even funny anymore. Oh wait I just seen your paps is on tmobile, if you want a stock rom for that you need to go to their section
Sent from my SGH-I747M using xda premium
the phone should stay unlocked through rooting and a custom rom. mine is unlocked, rooted, with aokp on it and it still can use other carrier's sim cards with no problem. about the 1700 band, there is currently no way to use it with this phone. there is a bounty thread in the general section about it.
edit: do you want a stock tmobile rom or a vanilla android rom?
sent from my I747
Thanks for the replies. I guess where I'm confused is what root method do I use? ATT since it's ATT hardware, or Tmobile since it's now unlocked and connected to TMobile? Sorry for my lack of knowledge on this.
Zameus said:
Thanks for the replies. I guess where I'm confused is what root method do I use? ATT since it's ATT hardware, or Tmobile since it's now unlocked and connected to TMobile? Sorry for my lack of knowledge on this.
Click to expand...
Click to collapse
use the att method because it's att hardware.
sent from my I747
I've galaxy s3 for tmobile and it is currently on 4.1.1 T999UVDLJA.
I followed this method to unlock it and right now I am using the phone on H2OWireless (MVNO on AT&T network), everything is working fine (not tested data plan yet).
http://forum.xda-developers.com/showpost.php?p=34661189&postcount=1
Now my question is if I upgrade the OS in future to say stock from TMO 4.1.2 (when they release) or non-stock 4.2.2 rom then will my unlock go away or it is factory unlocked now?
re: Unlock
raone26 said:
I've galaxy s3 for tmobile and it is currently on 4.1.1 T999UVDLJA.
I followed this method to unlock it and right now I am using the phone on H2OWireless (MVNO on AT&T network), everything is working fine (not tested data plan yet).
http://forum.xda-developers.com/showpost.php?p=34661189&postcount=1
Now my question is if I upgrade the OS in future to say stock from TMO 4.1.2 (when they release) or non-stock 4.2.2 rom then will my unlock go away or it is factory unlocked now?
Click to expand...
Click to collapse
No, once your phone is unlocked it stays that way regardless of flashing any roms.
Flashing roms has no effect on the locked or unlocked status of the phone.
Even a OTA update has no effect on the locked or unlocked status of the phone.
Misterjunky said:
No, once your phone is unlocked it stays that way regardless of flashing any roms in the future.
Flashing roms has no effect on a phone which is unlocked or locked.
Click to expand...
Click to collapse
Are you sure? Because this is different method than entering an unlocked provider by service provider. I just want to make sure before I step out of 4.1.1. And again it's possible to move back to stock right? Is there anything like iphone where you must have SHA BLOBS to get back to a specific version? I am an iphone guy and getting first time handson android phone litterally!
I tried getting one from tmobile but since I am not a tmobile customer the refused.
re: unlocked-locked
raone26 said:
Are you sure? Because this is different method than entering an unlocked provider by service provider. I just want to make sure before I step out of 4.1.1. And again it's possible to move back to stock right? Is there anything like iphone where you must have SHA BLOBS to get back to a specific version? I am an iphone guy and getting first time handson android phone litterally!
Yes you can go back to the stock rom by Odin flashing your phone at any time.
Doing that has no effect on the phone's locked or unlocked status.
Sorry I have no idea about the iphone's BLOBS
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Click to collapse
4.2.2 ROM?
Misterjunky said:
Yes you can go back to the stock rom by Odin flashing your phone at any time.
Doing that has no effect on the phone's locked or unlocked status.
Click to expand...
Click to collapse
Can you help or direct me to any link on this forum which lists all custom ROMs for TMO GS3 please.
And if possible in your opinion which would be the best? (I know it's wide scope question but if you can help that would be great )
re: custom roms
raone26 said:
Can you help or direct me to any link on this forum which lists all custom ROMs for TMO GS3 please.
And if possible in your opinion which would be the best? (I know it's wide scope question but if you can help that would be great )
Click to expand...
Click to collapse
Here is a link for a lot of Tmobile custom roms. Any of the custom roms there will work with a
Tmobile S3 locked or unlocked phone or a AT&T S3 unlocked phone: http://forum.xda-developers.com/forumdisplay.php?f=1645
My personal preference for custom rom is the "Wicked v9.1" rom.
In my opinion after flashing all other custom roms for Tmobile T999 phones the "Wicked v9.1"
custom rom is clearly the best rom which is currently available for our phones.
It's not only the most trouble free & reliable custom rom but cosmetically speaking it looks like a retail commercial product.
I would recommend that you flash that first, check out all it's features and options carefully then make a nandroid backup.
Here is the link to the Wicked v9.1 custom rom: http://forum.xda-developers.com/showthread.php?t=1804260
After doing that flash a lot of the other roms which are available and check those out so you can have a better idea
as to what the differences are after doing a lot of comparing.
Good Luck!
I unlocked a Galaxy S4 SGH-I337 FROM ATT I am using Tmobile services.
My question is can I install a Stock ROM from TMobile instead of having the ATT one?
I like the Wifi Calling and Tethering option.
I can tell you... But I have a LOT of readers who want to know how to do what you have already done! How did you SIM unlock your SGH-I337? There is a published method for AT&T and TMo that seems to no longer work on the AT&T variant.
OK.. I won't hold you hostage, but I really would like to know!
For the flash to stock, just head over here http://forum.xda-developers.com/showthread.php?t=2267895
Follow the instructions and that will re-flash T-Mobile stock everything.
Sent from my SGH-M919 using Tapatalk
mhannigan said:
I can tell you... But I have a LOT of readers who want to know how to do what you have already done! How did you SIM unlock your SGH-I337? There is a published method for AT&T and TMo that seems to no longer work on the AT&T variant.
OK.. I won't hold you hostage, but I really would like to know!
For the flash to stock, just head over here http://forum.xda-developers.com/showthread.php?t=2267895
Follow the instructions and that will re-flash T-Mobile stock everything.
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
Are u sure u can directly odin flash tmo stock unto i337?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
sharpeyedman said:
Are u sure u can directly odin flash tmo stock unto i337?
Sent from my SAMSUNG-SGH-I337 using xda app-developers app
Click to expand...
Click to collapse
Yes. But also check this thread. The AT&T boot loader is locked and may require Loki Doki patch when you are done.
http://forum.xda-developers.com/showthread.php?t=2295557
Sent from my SGH-M919 using Tapatalk
mhannigan said:
Yes. But also check this thread. The AT&T boot loader is locked and may require Loki Doki patch when you are done.
http://forum.xda-developers.com/showthread.php?t=2295557
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
.... I may be wrong here, but since when has it been OK to Odin different carrier's stock .tars? Flashable CWM zips yes, but the bone stock tar with modem, baseband, etc?
Also, being that you have TMO service and an ATT device; flashing a TMO ROM with WiFi calling should work; just use an ATT kernel and the Loki patch. Personally, I'd flash the rooted stock MDL or a custom TouchWiz via CWM or whatever recovery you happen to use and not use Odin.
lordcheeto03 said:
.... I may be wrong here, but since when has it been OK to Odin different carrier's stock .tars? Flashable CWM zips yes, but the bone stock tar with modem, baseband, etc?
Also, being that you have TMO service and an ATT device; flashing a TMO ROM with WiFi calling should work; just use an ATT kernel and the Loki patch. Personally, I'd flash the rooted stock MDL or a custom TouchWiz via CWM or whatever recovery you happen to use and not use Odin.
Click to expand...
Click to collapse
Since wjenmisnit OK to do it differently?
It is only OK to do when you know what you are doing. In this case the hardware is absolutely identical. You're not going to be using AT&Ts baseband firmware on the T-Mobile network are you? Good luck with that.
Mike
Sent from my SGH-M919 using Tapatalk
---------- Post added at 12:24 AM ---------- Previous post was at 12:17 AM ----------
lordcheeto03 said:
.... I may be wrong here, but since when has it been OK to Odin different carrier's stock .tars? Flashable CWM zips yes, but the bone stock tar with modem, baseband, etc?
Also, being that you have TMO service and an ATT device; flashing a TMO ROM with WiFi calling should work; just use an ATT kernel and the Loki patch. Personally, I'd flash the rooted stock MDL or a custom TouchWiz via CWM or whatever recovery you happen to use and not use Odin.
Click to expand...
Click to collapse
MDL baseband is the modem firmware
Sent from my SGH-M919 using Tapatalk
i have the i337 ATT and I am using a Tmobile sim card. Just youtube "unlock galaxy s4 AT&T". There are plenty of videos that use a secret menu to unlock the phone.
Free and instant
I also have AT&T i337 unlocked BUT
I also have AT&T i337 unlocked BUT when I try to use it with MetroPCS (same tower as T-Mobile - companies now merged) I can't get anything but Edge network where on my MetroPCS-supplied phone I get 4G (LTE only rarely) in the same areas. Edge network is ridiculous - can't even load a standard webpage- forget about watching a video! ookla =0.01mps!
So I have an unusable rooted, unlocked S4.
I've tried various APN settings to no avail... Thought I would try liquidsmooth ROM, or any ROM that works on both AT&T and T-Mobile... I assume T-Mobile /MetroPCS would react the same. And I am on a pay as you go plan that is similar to T-Mobile's s. I could easily switch to them if not...
Questions:
Has anyone any advice that could help?
Does anyone know if T-Mobile requires a "pairing" of sim card with phone's IMEI as MetroPCS does? (big pain in the butt)
I've done the same thing flashed roms, Modems, To my luck nothing, I did filing that since I repaired the imei, That is when the problem started. Also to does not tie imei to sims. Did you repair imei
Sent from my SGH-M919 using xda premium
Easy free Sim unlock
Just wanted to point out that if you know someone who has AT&T service they can unlock your phone for free My girlfriend did it for me on their website and it took 24 hours for them to send an email with the unlock code. Just thought i should share that. Up next getting this t-mobile rom onto my 32gb i337 at 4.4.2 with NB1. I hate everything AT&T and God is this phone bloated!
Wanabedev83 said:
Just wanted to point out that if you know someone who has AT&T service they can unlock your phone for free My girlfriend did it for me on their website and it took 24 hours for them to send an email with the unlock code. Just thought i should share that. Up next getting this t-mobile rom onto my 32gb i337 at 4.4.2 with NB1. I hate everything AT&T and God is this phone bloated!
Click to expand...
Click to collapse
Don't they have to be the owner to request an unlock?
Sent from my SGH-M919 using Tapatalk
serio22 said:
Don't they have to be the owner to request an unlock?
Sent from my SGH-M919 using Tapatalk
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Click to collapse
To be honest i can't answer your question. The phone i bought was from a guy who sold it to me out of eBay with a none working screen, he had the imei in the pics so i ran an imei blacklist check and it was clean. I asked him why he didn't fix it and said it was out of warranty so he just left it dead. I guess it was paid for but in his account so it was free for anyone to use but letting my girl do the unlock request worked so if you have a phone that's not blacklisted and you its not associated to an active account I guess it could be done. Try it, it's worth the try.
Similar question
Very first post, not sure if I should have started a new thread. Anyway, I have an ATT S4 I337 with the MF3 baseband. It's rooted, region unlocked, and fully switched to t-mobile service using a method I found on youtube, which worked fairly well except had to modify two things (I can help if you're having trouble). Now I'd like to upgrade firmware (I'm still on 4.2.2). However, I have a lot of uncertainty because of all the changes I've made. If I temporarily unroot, who am I going to get updates from? Do I need TMO or ATT custom ROMs if I want custom (have they solved that bootloader issue yet?). Basically, what's the safest way to update firmware?
Thanks in advance
mhannigan said:
Since wjenmisnit OK to do it differently?
It is only OK to do when you know what you are doing. In this case the hardware is absolutely identical. You're not going to be using AT&Ts baseband firmware on the T-Mobile network are you? Good luck with that.
Mike
Sent from my SGH-M919 using Tapatalk
---------- Post added at 12:24 AM ---------- Previous post was at 12:17 AM ----------
MDL baseband is the modem firmware
Sent from my SGH-M919 using Tapatalk
Click to expand...
Click to collapse
The above also omits that if you are on Android 4.3.X than the bootloader on your Samsung Galaxy S4 contains a bootloader restriction preventing any downgrade which means you would be unable to flash MDL (ie. M919UVUAMDL) since MDL is Android 4.2.2.
Does anyone know a way around this bootloader restriction thereby allowing a downgrade to 4.2.2?
att i337 to t-mob stock
Hi, Im pretty new to this firmware and different model numbers etc.. but here goes. I bought a samsung s4 on att i337 a few months ago off a friend. I paid an online company for the unlock code and received the code within 24 hours. The phone is now unlocked and I have a T-mob sim in it, i'm now looking to update the firmware to t-mobile 4.4.4. Can i download a t-mob stock rom for i337?? I'm worried that this might break the phone as everything I see for t-mob is SGH-M919. Should this matter now that the phone is unlocked?? Thanks
No, you need to use ATT firmware due to hardware differences (antenna/radio). Also as I recall ATT S4s have a locked bootloader meaning only safestrap compatible ROMs can be used, unless something changed since I had one last summer. Sold it, on Swappa, and bought a TMob version with unlocked boot loader and sim unlocked!
Sent from my SGH-M919 using Tapatalk
mfranklin90 said:
Very first post, not sure if I should have started a new thread. Anyway, I have an ATT S4 I337 with the MF3 baseband. It's rooted, region unlocked, and fully switched to t-mobile service using a method I found on youtube, which worked fairly well except had to modify two things (I can help if you're having trouble). Now I'd like to upgrade firmware (I'm still on 4.2.2). However, I have a lot of uncertainty because of all the changes I've made. If I temporarily unroot, who am I going to get updates from? Do I need TMO or ATT custom ROMs if I want custom (have they solved that bootloader issue yet?). Basically, what's the safest way to update firmware?
Thanks in advance
Click to expand...
Click to collapse
Hi! I am having major issues with my s4 i337 after switching from att to tmobile. The phone was unlocked so I took it upon myself to unlock it. It is unlocked but sometimes or rather most of the time does not pick up the network. When it does have data connection, it is Edge. I flashed the NC1 to root my phone, then reflashed to NJ4 (to unlock) but now nothing works. No wifi, camera fails, no multitasker, no voice assistant. Please help!!!!! I don't know what to do. I should have never unrooted it to unlock. I should have paid the $35 to get an unlock code. Can I fix this?
vannicuhh said:
Hi! I am having major issues with my s4 i337 after switching from att to tmobile. The phone was unlocked so I took it upon myself to unlock it. It is unlocked but sometimes or rather most of the time does not pick up the network. When it does have data connection, it is Edge. I flashed the NC1 to root my phone, then reflashed to NJ4 (to unlock) but now nothing works. No wifi, camera fails, no multitasker, no voice assistant. Please help!!!!! I don't know what to do. I should have never unrooted it to unlock. I should have paid the $35 to get an unlock code. Can I fix this?
Click to expand...
Click to collapse
Have you flashed the full firmware?
serio22 said:
Have you flashed the full firmware?
Click to expand...
Click to collapse
I am not sure. I flashed NB1 as suggested by another forum member and everything is working once again. Although it went back to 4.4.2.
Now it has this notification : security notice: unauthorized actions have been detected. It wants me to reboot to revert the changes. How do I make this go away and will it go back to its unusable mode if I manually reboot?
Sent from my SAMSUNG-SGH-I337 using xda Forum
YES
TTAHER said:
I unlocked a Galaxy S4 SGH-I337 FROM ATT I am using Tmobile services.
My question is can I install a Stock ROM from TMobile instead of having the ATT one?
I like the Wifi Calling and Tethering option.
Click to expand...
Click to collapse
i have samsung galaxy s7 edge att unlocked with tmobile sim card and my last 2 ota upgrade are from tmobile G935TUVU4APK1
I have a boost mobile s3 and want to know weather its possible to flash it with a sprint s3 stock rom WITHOUT complications
the Baseband version is L710VPUBMK5
i have downloaded the sprint rom and want to confirm its safe before i go ahead
its fresh from box and not activated, all i want is to use the phone on another cdma network outside the USA
alemosman said:
I have a boost mobile s3 and want to know weather its possible to flash it with a sprint s3 stock rom WITHOUT complications
the Baseband version is L710VPUBMK5
i have downloaded the sprint rom and want to confirm its safe before i go ahead
its fresh from box and not activated, all i want is to use the phone on another cdma network outside the USA
Click to expand...
Click to collapse
Try HERE. I suggest you read 1st couple of pages. I think JDSingle's ROMS on that thread are stock and have been modified for you. Also you will need root and modified recovery from HERE. If your wanting to use phone on a different carrier, your gonna have to unlock phone, totally different than changing roms, but you wil still need to be rooted and have custom recovery that I linked above. Read HERE for unlocking. ALSO Im not 100% sure this method will work as thread is for unlocking the Sprint version. Ask in that thread.
I have read a bit and can't find a definite answer. I am going to pick up a att note 3 tomorrow that's been unlocked. Guy says he uses it on tmobile fine but my question is in terms of installing custom ROMs, how should I go about installing a tmobile version? I have read where people get better reception using tmobile ROMs but am uncertain about how and what to do. I know how to flash etc but also never messed with att phones on tmobile.
Do you guys that are running an att version do any extra steps or? Do you flash Tmobile radios?
Any help is appreciated.
re: AT&T Note 3
Ducter said:
I have read a bit and can't find a definite answer. I am going to pick up a att note 3 tomorrow that's been unlocked. Guy says he uses it on tmobile fine but my question is in terms of installing custom ROMs, how should I go about installing a tmobile version? I have read where people get better reception using tmobile ROMs but am uncertain about how and what to do. I know how to flash etc but also never messed with att phones on tmobile.
Do you guys that are running an att version do any extra steps or? Do you flash Tmobile radios?
Any help is appreciated.
Click to expand...
Click to collapse
It's too bad that you got the AT&T model phone instead of the Tmobile.
You will not be able to have the wifi calling feature (perhaps you don't need it)
Also the AT&T Note 3 requires "safestrap" before you can flash custom recovery,
roms, kernels or anything else which requires custom recovery (TWRP/CWM).
Here is a link which explains Safestrap and instructions on how to install it on
the AT&T note 3 phones: http://forum.xda-developers.com/showthread.php?t=2572978
Good luck!
Misterjunky said:
It's too bad that you got the AT&T model phone instead of the Tmobile.
You will not be able to have the wifi calling feature (perhaps you don't need it)
Also the AT&T Note 3 requires "safestrap" before you can flash custom recovery,
roms, kernels or anything else which requires custom recovery (TWRP/CWM).
Here is a link which explains Safestrap and instructions on how to install it on
the AT&T note 3 phones: http://forum.xda-developers.com/showthread.php?t=2572978
Good luck!
Click to expand...
Click to collapse
Thanks for the information.