Hey guys,
I am using my SGH i337 with T Mobile and I used RegionLockAway to get it to work with the T Mobile network. Now I read that this is not the same as a true SIM unlock but it seems to work flawlessly with T Mobile after unlocking the AWS bands.
I am currently on 4.2.2 with MF3 and I want to upgrade to 4.4 KitKat, does anybody know if this will remove the region unlock and will ask for a code? I have read that other members successfully upgraded to 4.3 via OTA and flashed via ODIN and retained the unlock.
revoo25 said:
Hey guys,
I am using my SGH i337 with T Mobile and I used RegionLockAway to get it to work with the T Mobile network. Now I read that this is not the same as a true SIM unlock but it seems to work flawlessly with T Mobile after unlocking the AWS bands.
I am currently on 4.2.2 with MF3 and I want to upgrade to 4.4 KitKat, does anybody know if this will remove the region unlock and will ask for a code? I have read that other members successfully upgraded to 4.3 via OTA and flashed via ODIN and retained the unlock.
Click to expand...
Click to collapse
I was on 4.3 MK2 w/ T-Mobile. I unlocked using RegionLockAway awhile back. Last night I decided to update to 4.4.2. I un-rooted using SuperSu, flash stock MK2 w/ Odin. Then did the OTA in settings. It's still unlocked. I was surprised LTE speeds improved. If you don't need to be rooted, I say go for it.
Related
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can I flash a at&t stock firmware with odin to my T-Mobile m919 with out any problems...right now my s4 is sim unlocked and im on at&t network .and it seems like its working ok but signal a little on the low side and spotty lte service....would there be any advantage flashing at&t's stock firmware to use on att network .would it lock my bootloader..would my service and signal be any better.....if I wanted to would I be able to flash back to T-Mobile stock firmware...will it work....anyone try this ..anything I should know before I do this ...thanks in advance
[email protected] said:
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can I flash a at&t stock firmware with odin to my T-Mobile m919 with out any problems...right now my s4 is sim unlocked and im on at&t network .and it seems like its working ok but signal a little on the low side and spotty lte service....would there be any advantage flashing at&t's stock firmware to use on att network .would it lock my bootloader..would my service and signal be any better.....if I wanted to would I be able to flash back to T-Mobile stock firmware...will it work....anyone try this ..anything I should know before I do this ...thanks in advance
Click to expand...
Click to collapse
[?quote}Originally Posted by Misterjunky View Post
Nope, it won't lock or re-lock your phone, once a phone is unlocked properly it will stay that way
regardless which rom you flash and regardless if you're on the AT&T network or Tmobile network.
Do not Odin flash the AT&T stock firmware on a Tmobile phone even if it's unlocked.
If you do you will not be able to make or receive any phone calls.
You can flash AT&T or Tmobile CWM/TWRP flashable stock or custom zip file roms because
those do not contain the radio/modem images like the Odin flash firmware do.
If you odin flash back to stock Tmobile firmware you will loose root unless you re-root after flashing.
As far as bootloaders go, a Tmobile phone requires a Tmobile bootloader, but you don't need to worry
about that if you flash the stock official tmobile firmware with Odin.
All the other tmobile and at&t cwm/twrp flashable zip file roms found in these threads don't contain
any bootloaders that's why they can be flashed on any unlocked and rooted tmobile or at&t phones.[/quote]
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4
[email protected] said:
[?quote}Originally Posted by Misterjunky View Post
Nope, it won't lock or re-lock your phone, once a phone is unlocked properly it will stay that way
regardless which rom you flash and regardless if you're on the AT&T network or Tmobile network.
Do not Odin flash the AT&T stock firmware on a Tmobile phone even if it's unlocked.
If you do you will not be able to make or receive any phone calls.
You can flash AT&T or Tmobile CWM/TWRP flashable stock or custom zip file roms because
those do not contain the radio/modem images like the Odin flash firmware do.
If you odin flash back to stock Tmobile firmware you will loose root unless you re-root after flashing.
As far as bootloaders go, a Tmobile phone requires a Tmobile bootloader, but you don't need to worry
about that if you flash the stock official tmobile firmware with Odin.
All the other tmobile and at&t cwm/twrp flashable zip file roms found in these threads don't contain
any bootloaders that's why they can be flashed on any unlocked and rooted tmobile or at&t phones.
Click to expand...
Click to collapse
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4[/QUOTE]
i was under the impression that the hardware was the same and the firmware / modem /radio firmware controled the radio Frequency
[email protected] said:
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4
Click to expand...
Click to collapse
i was under the impression that the hardware was the same and the firmware / modem /radio firmware controled the radio Frequency[/QUOTE]
If you want stock att, just flash this through recovery http://forum.xda-developers.com/showthread.php?t=2307157
Sent from my HTC PH39100 using Tapatalk 2
re: ATT&Tmo
[email protected] said:
i was under the impression that the hardware was the same and the firmware / modem /radio firmware controled the radio Frequency
so the hardware is different is that why you cant flash att stock firmware with odin on a T-Mobile s4
Click to expand...
Click to collapse
The hardware is NOT the same.
If the hardware was the same for both the AT&T S4 and Tmobile S4 phones then there would only
be one model for both carriers and both carriers would be using the same frequencies of operation.
It's not the software that determines the frequencies of operation, it's in the hardware.
Another thing is that the AT&T has a locked bootloader, the Tmobile bootloader is not locked.
(Whether the bootloader is locked or not it has nothing to do with rooting)
He is correct here...they are not similar. 2 different modems etc.
Can I Flash AT&T US firmware with Non-branded germany firm ware using odin?
Can I Flash AT&T US firmware with Non-branded germany firm ware using odin?
Any help on this will be great!
Wondering if that will brick my phone. I am using Unlocked AT&T US model in India and wanted to flash it with Indian or European firmware,
Thanks in advance.
Vikram
Vikram26 said:
Can I Flash AT&T US firmware with Non-branded germany firm ware using odin?
Click to expand...
Click to collapse
No you can't
Thanks Doktor
doktor buknasty said:
No you can't
Click to expand...
Click to collapse
Thanks Doktor
---------- Post added at 02:24 PM ---------- Previous post was at 02:13 PM ----------
doktor buknasty said:
No you can't
Click to expand...
Click to collapse
Can I flash with anyother country firmware using other method please? I don't want to use AT&T Stock firmware.
Vikram26 said:
Thanks Doktor
---------- Post added at 02:24 PM ---------- Previous post was at 02:13 PM ----------
Can I flash with anyother country firmware using other method please? I don't want to use AT&T Stock firmware.
Click to expand...
Click to collapse
No you cant. You have stick with att firmware or else your phone will be a brick.
What would be a better phone to get to use on AT&T? An unlocked T-Mobile S4 or an AT&T branded S4?
AT&T ROMS on T-Mobile S4
I've been attempting to install the stock AT&T firmware on my T-Mobile M919. I understand after reading the thread that this is not possible which is why the Odin flash always fails. I am using an AIO (AT&T) sim card. I have been flashing ROMS built for the I337. Most boot loop after install. Those that install successfully cannot activate the WIFI function on the phone. Both Xperia and Darth Stalker work when installed for the AT&T variety of S4. Today I read the Goldeneye installation instructions which state if the AT&T baseband is not flashed on the phone, then WIFI will not work which is the problem I routinely experience. So my question is should I be flashing T-Mobile S4 roms even though I have an AT&T sim? or do I have another issue? The phone is rooted and sim unlocked. Thanks!
I own a i337M S4 is it possible to flash via odin the i337 att firmware? and have the modem and everything still working? So basically I want to take my Canadian S4 and make it usable in the US? I'm going to be moving in a few weeks.
Hi, I have the same question.
I am planning to install Telus rom v 4.2.2 on Fido S4 which is on Android 4.2.2 Baseband i337MVLUAMG1.
I have unlocked (SIM) the phone using unlock code and Rooted using CF auto root.
Have TWRP installed. Have made nandroid back up.
So here are the steps I am going to follow.
1) Download Official Telus Firmware (4.2.2 AMG) from sammobile.
2) Wipe to factory default using TWRP.
3) Flash Telus firmware 4.2.2 using Odin.
4) Root the phone.(CF-Auto Root)
Can someone please tell me if this is OK?
Are there any chances of bricking the device if you install telus rom on fido phone?
Just want to make it sure before I proceed.
I've just recently bought this S4 off my friend
The phone was bought in canada, and sent to Denmark for my friend's brother to use
and he now sent it back to me (Canada) because my S3 has died on me.
It is an GS4 i337m VLUFNE1
It is on official firmware 4.4.2
I want to root it to enable AWS to use it with Wind mobile
I assume the phone is unlocked because it was used in Denmark
Please direct me to a thread that will be able to root this model
I have looked at http://forum.xda-developers.com/showthread.php?t=2293800
but I'm nervous to follow the method because there is a discussion about unlocked and locked bootloaders, and i'm not sure
if this method will work for mine.
Your help is appreciated.
There is no carrier logo on the back of the phone either, if that helps.
Did you check if towelroot works? Its just running an app.
Hi guys one of my friends bought a S4 in the US, It's AT&T locked SGH-I337 so can't use it with sim in our country (South Africa)We have two models of S4 here, the I9500&I9505. Was wondering what the right steps is to get the phone working? Must I root the phone and flash custom Rom & kernel or just unlock sim card? I'm not new to Rooting or flashing Roms but haven't fidled with carrier locked phones before. And is it possible to use custom Roms from At&t in other countries thanks in advance [emoji2]
Send from my UNBENDABLE NOTE 3 ?<br/>
Send from my UNBENDABLE NOTE 3 ?
Leonidas300 said:
Hi guys one of my friends bought a S4 in the US, It's AT&T locked SGH-I337 so can't use it with sim in our country (South Africa)We have two models of S4 here, the I9500&I9505. Was wondering what the right steps is to get the phone working? Must I root the phone and flash custom Rom & kernel or just unlock sim card? I'm not new to Rooting or flashing Roms but haven't fidled with carrier locked phones before. And is it possible to use custom Roms from At&t in other countries thanks in advance [emoji2]
Send from my UNBENDABLE NOTE 3 ?<br/>
Send from my UNBENDABLE NOTE 3 ?
Click to expand...
Click to collapse
The Sgh-i337 is basically the same as the gt-i9505 EXCEPT for ATT locking the bootloader on that model.
You CAN Sim unlock it so you can insert your Sim into it. You will have to reach it a bit though. It helps if you know what firmware is installed on the phone. If it is MDB, MDL, or MF3 it would be easier to do I believe. Either way look for the threads about unlocking.
If you have NEWER firmware then there are separate threads for it, and it will more than likely need to be rooted, flash a older modem, then perform the Sim unlock from the menu. If you cannot find the correct post I can help look for it later.
Just reply back with WHAT firmware and Baseband you have installed on the phone and we should be able to help you further.
If you do have MDB or MDL firmware do NOF update it...
RockRatt said:
The Sgh-i337 is basically the same as the gt-i9505 EXCEPT for ATT locking the bootloader on that model.
You CAN Sim unlock it so you can insert your Sim into it. You will have to reach it a bit though. It helps if you know what firmware is installed on the phone. If it is MDB, MDL, or MF3 it would be easier to do I believe. Either way look for the threads about unlocking.
If you have NEWER firmware then there are separate threads for it, and it will more than likely need to be rooted, flash a older modem, then perform the Sim unlock from the menu. If you cannot find the correct post I can help look for it later.
Just reply back with WHAT firmware and Baseband you have installed on the phone and we should be able to help you further.
If you do have MDB or MDL firmware do NOF update it...
Click to expand...
Click to collapse
Thanks for reply ,I have NC1 firmware and I used Method 3 on this guide http://forum.xda-developers.com/showthread.php?t=2595457 .SUCCESS!
Could you recommend a modem I could try other than MF3 as the signal isn't that great ?
Leonidas300 said:
Thanks for reply ,I have NC1 firmware and I used Method 3 on this guide http://forum.xda-developers.com/showthread.php?t=2595457 .SUCCESS!
Could you recommend a modem I could try other than MF3 as the signal isn't that great ?
Click to expand...
Click to collapse
Not sure which would work best for your area. You can download and try any/all of them until you find one that works best. You can switch back and forth with no issues without worries
I'm new to rooting ATT phones, my wife just go a free ATT S4 I337UCUFNC1 from a friend and I want to root, convert it from ATT to T-Mobile phone then unlocking it.
The phone doesn’t have a sim yet but I'm planning on putting my wife's present T-mobile sim in there.
I'm very familiar with the T-mobile Samsung S4 version.
I've read that I need a safestrap after root?
Can I update to 4.4.4?
Can someone point me in the right direction?
LEGEND94 said:
I'm new to rooting ATT phones, my wife just go a free ATT S4 I337UCUFNC1 from a friend and I want to root, convert it from ATT to T-Mobile phone then unlocking it.
The phone doesn’t have a sim yet but I'm planning on putting my wife's present T-mobile sim in there.
I'm very familiar with the T-mobile Samsung S4 version.
I've read that I need a safestrap after root?
Can I update to 4.4.4?
Can someone point me in the right direction?
Click to expand...
Click to collapse
Follow this to root http://forum.xda-developers.com/showthread.php?p=56453100. To run on tmobile you'll have to sim unlock it. Try regionally away
http://forum.xda-developers.com/showthread.php?p=46187852
Sent from my Nexus 9 using XDA Free mobile app
To Sim unlock, flash the MF3 modem in safestrap recovery and then run regionlockaway app.
Thanks alot, I was able to boot in Safestrap Recovery but after I rebooted from that and then tried to reboot back into Recovery Safestrap FC'ed. I tried uninstalling the app and reinstalling it but is FC'ed again, dunno what's it going on.
How do I get back into Recovery if Safestrap is FC'ing? (I'm trying to flash the MF3 modem)
NVM, Got back into recover, flashed the modem now and used Region SimLock, I took my T-Mobile sim and put it in the AT&T phone and it works.
Now I will try to convert it from AT&T to a T-Mobile Phone using : http://forum.xda-developers.com/galaxy-s4-att/general/convert-i337-to-m919-wifi-caling-t2896719
Quick Question
If I use this method to convert from a AT&T to T-Mobile will I loose the Unlock Sim?
Would I be able to use Region SimLock again with the being updated to 4.4.4?
Got everything going... completed!
Thanks!
Hey people, I have an issue going on here.
I was going to unlock, but decided to reflash firmware and change the csc from rogers over to bell.
Kies recognizes the phone now as being a 'bell' phone, and have done an update just to confirm it but it still will not accept a bell sim. Every time I have inserted a bell sim it requests the 4 digit unlock code. The sim works just fine in my S3 and another bell S4, so that is not the problem.
All settings in the phone also show it to be 'bell', home screen and all, so the csc did take.
All the modems/firmware on sammobile are multi-csc, as i have tried to just flash the modem alone after I extracted it.
I could care less about being truly carrier free, as I am locked into a bell agreement through work.
Any suggestions on this, or do i have to purchase a code? I assume its locked now so I cannot downgrade to my understanding to a lower modem to use the service menu to unlock.
Thanks for the input.
I've flashed from a Bell 4.4.2 to Telus 5.01 without issue and the phone will remain sim-locked. The only difference I have seen between the Bell, Telus, and Rogers ROM are the carrier apps included with each ROM.
The sim unlock code is 8 digits long.
You should be able to downgrade the i337m's 5.01 stock ROM to a i337m 4.4.2 stock ROM. Then install the 4.2.2 modem, root the phone, run region unlock app, re-flash stock 5.01, and the phone will be sim unlocked. Doing this will trip the knox counter to 1 and void any remaining warranty.
I tried to downgrade, but it didnt take. I will try again. I know there was a discussion on booting the phone and not signing into google then reflash again. Is this needed?
Thanks for the reply.
Well, I got it to work this time. Much appreciated
You tried to flash a stock 4.4.2 rom from sammobile.com? Were there errors in Odin?