I just recently acquire myself a Sprint Galaxy S4. It is not rooted. It is running stock android 4.3 with the L720VPUEMK2 baseband. My question is can I unlock this phone to use on US gsm carriers like Tmobile and AT&T? I don't want to buy any unlock code from ebay because those codes only allow it to unlock to use for overseas. Have I had a choice I would've just bought a Tmobile, AT&T or verizon galaxy s4, but they were too expensive. Can anyone help me?
Pls read next time, anyways no you can't as of right now because only works with mdc or mdl basebands and no way to downgrade right now...mf9 and above you can international unlock tho
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gotablunt said:
Pls read next time, anyways no you can't as of right now because only works with mdc or mdl basebands and no way to downgrade right now...mf9 and above you can international unlock tho
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Darn it!!! So what you're basically saying is that even if I rooted the phone and use a rom that supports MDC or MDL basebands I still can't unlock it to use on domestic GSM carriers? If that's the case if i'm reading correctly then I guess it's time to put up the phone for sale on Swappa.
I think that because you can't downgrade to MDC/MDL baseband you can't unlock it in domestic GSM carrier at least currently.
The knox in bootloader denied you to downgrade to MDC/MDL baseband.
So either wait to get a solution or sell it.
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anees02 said:
I think that because you can't downgrade to MDC/MDL baseband you can't unlock it in domestic GSM carrier at least currently.
The knox in bootloader denied you to downgrade to MDC/MDL baseband.
So either wait to get a solution or sell it.
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How to Unlock for International Use
parin11 said:
How to Unlock for International Use
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Some users tell that they can downgrade the baseband easly to MDC/MDL baseband only.
so if you can you can unlock GSM.
Note:downgrade the baseband only ....neither the software nor bootloader.
Related
Hi!
I got S4 at At&t today. (excited ) I begun to read threads after threads. I came across this link:
http://forum.xda-developers.com/showthread.php?t=2283918
So, after that, I gonna do set up CWM nandroid back up?
What about Bootloader? I have experience on previous device, Verizon Samsung Galaxy s3 unlocked bootloader.
Then install At&t roms only?
I have S4 on at&t about device...
Model number - SGH 1337
Android version - 4.2.2
baseband version - 1337UCUAMDL
build number JDQ39.1337UCUAMDL
Thanks for reading!
Anyone know about device locked or unlocked bootloader?
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LeonKnight12 said:
Anyone know about device locked or unlocked bootloader?
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It has a locked bootloader
Also, you are lucky to still be on MDL firmware, DO NOT update to the MF3 firmware or you will lose ability to root your S4. My advice would be to remove sim card and turn off Wifi (to prevent accidentally updating) then root phone with Motochopper. Once rooted go freeze the update apks to ensure it does not update on you later. MF3 is unrootable as of now so DO NOT update if you want root!
I think you mean MF3. And yes, you have a locked bootloader, you should use this...and he is right do NOT do a update, once you do you lose root, and there is no way back just yet.
http://forum.xda-developers.com/showthread.php?t=2297900
Got it. Thanks!
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hi,
I have an unlocked SGH-I337 with Android 4.2.2 I337UCUAMDL root and revocery,
if I upgrade to version 4.4.2, I lose the unlock??
thanks
Yes you will, if you want to be able to flash roms I recommend that you do not take the update
Sent from my Nexus 5
why not just run a 4.4.2 custom rom like
http://forum.xda-developers.com/showthread.php?t=2313469
it runs great for me--there are others also
nandroid first a usual in case a restore is needed--:good:
i prefer twrp 2.5.0.2 myself
caccolino said:
hi,
I have an unlocked SGH-I337 with Android 4.2.2 I337UCUAMDL root and revocery,
if I upgrade to version 4.4.2, I lose the unlock??
thanks
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You will not lose sim unlock however you will lose boot loader unlock. Just wanted to clarify that
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cnewsgrp said:
You will not lose sim unlock however you will lose boot loader unlock. Just wanted to clarify that
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It's good to know that I won't lose my SIM unlock, I had been worried that it would cause problems for the person I sold my s4 to, it's nice to know I didn't screw them over (T-Mobile user).
I have the S4 SPH-L720 MK2 baseband with a sim card. I'm not sure what that means. Can I use this phone on a different cell company? Or out of the country? Sorry for the noobness. And thanks
I Love The Smell Of Burnt Rubber Anytime
After 90 days Sprint will unlock it for international use it can't be unlocked for US use right now as only earlier versions of software have been successfully unlocked
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can some one tell me if i can unlock sprint galaxy s4 on 4.4.2 am rooted is there any way to unlock so i can used with simple mobile or t-mobile please help
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I'm sure you can carrier unlock your S4 and allow you to use another Sim card. Try searching for it
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sisonas said:
can some one tell me if i can unlock sprint galaxy s4 on 4.4.2 am rooted is there any way to unlock so i can used with simple mobile or t-mobile please help
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I think you can carrier unlock for 3G data only. But I think Sprint has to give you the code, and you have to be off contract or paid up on your phone.
If you look around you will see the domestic unlock only rolls when you are on mf9 bootloader and can go back to mdc If you are on 4.4.2 the best you can do is foreign unlock after 90 days on Sprint and then they will unlock it.
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I have used google and searched all over XDA. Can someone tell me how to odin my Att S4 with NB1 to tmobile stock firmware? I am just lost at which way to do it.
I am currently running Stock NB1 on my s4. Bootloader is locked.
You can't. Most you can do is downgrade and try to flash a T-Mobile ROM with Safestrap.
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Curious why yu'd want to do this?
All u really need to do is Sim unlock it through ATT, pop in yur tmobile sim... and maybe change your APN
Posted from my I337 NB1 Dark Venom 3 SS version --- 20G Free Cloud --- https://copy.com?r=vtiraF
Prob because T-Mob is unlocked and has an unlocked bootloader.