Is there and way that I can unlock the bootloader of my Samsung Galaxy S4 AT&T SGH-I337 jflteatt rooted? I have been trying to find something that could possible work for a long time now and so far nothing is working. Also I am running NC1. I just want to install TWRP and unlock the bootloader.
You can't unlock the bootloader yet, as an alternative you can use safestrap. You can install a GPE rom, it's pretty stable.
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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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Hello, I currently have a AT&T S4 i337 unlocked by the *#0011# method to work with Claro. I want to flash a custom rom in it but im not sure if the method is gonna stay or if I have to do it again or so.
Does that unoock method unlocks forever the device even if I flash a cutom rom, recovery or kernel???
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Hello, I have just bought a Galaxy S4 i337 unlocked from Amazon. Still on 4.3 and MK2 firmware. I have rooted it and successfully installed Safestrap. Which roms can I flash with it? Also, when I flash a custom rom will I lose the Sim unlock and is there something I can flash to unlock it if so? I will be using this on Straight Talk. I know there are threads about these things but I keep finding different answers. I appreciate any help. Thank you.
First, you won't lose the sim unlock by flashing roms. As far as roms, look in the general forum for index all things mk2, nb1
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http://forum.xda-developers.com/showthread.php?t=2616221
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I have an AT&T Galaxy S 4, SGH-I337 running Android 4.4.2 and I want to unlock it. I haven't had any luck with doing it my self through the Service Menu, I guess due to KitKat.
My question is If I use Towelroot to root my phone, will I be able to unlock my phone and use on T-Mobile?
Thanks for all the great stuff on your site!
Have you tried this? It's in the general forum
http://forum.xda-developers.com/showthread.php?p=54932702
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I want to know if I flash a stock ROM such as lollipop to my unlocked AT&T phone, would it relock to default network? I unlocked it by purchasing an unlock code from a website.
thanks
No, once you're unlocked it will stay unlocked even if you flash the stock firmware with Odin.
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