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    Thread Samsung Galaxy S4 (SGH-I337) locked at AT&T bootup screen, then I "tried" to fix it..

    Samsung Galaxy S4 (SGH-I337) locked at AT&T bootup screen, then I "tried" to fix it.. Well, as the title suggests, I f***ed (Not sure if swearing is allowed...) up my device. I did the upgrade to 5.0.1 and keep root method by another user a while back, then yesterday, Super SU asked if I wanted...
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    Thread [Question] ROMs on Bootloader Locked AT&T Galaxy S4 (I337)

    I know that a phone with a locked bootloader can only flash Touch-Wiz based ROMs, but can I use ROMs that are made for a different model, like the i9505? (I seriously regret updating to Lollipop. My mom has an unlocked phone, but, it's hers... Guess I will have to buy a Nexus 6).
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    Thread Error when trying to install custom recovery (TWRP or CWM).

    Yet another post... So, I have been trying to install TWRP and CWM but every time I boot into recovery with those installed I get: "System Software not Authorized" error. Is there anyway to bypass this? I think I Soft Bricked it, but I fixed it with Odin and a stock recovery file. I just want to...
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    Thread [Completed] Trying to downgrade Galaxy S4 SGH-I337 (AT&T)

    Hello, I am new to the fourms, so I hope that I am posting this in the right place. Anyways, I have been trying to downgrade/dual boot my Galaxy S4 Device because some Root apps don't work with the only way I am aware how to root a device running on 5.0.1 Lollipop, which is KingRoot. I...