Originally Posted by brazenass
I recently converted by AT&T version to a Google Edition via S-OFF, CID change and Google 4.4 RUU.
AT&T has tried to issue me unlock codes twice, but neither works. I'm using an old t-mobile SIM to attempt the unlock.
Does anyone know if maybe updating the CID impacts the ability to use a carrier unlock code?
Install a stock at&t ROM and try again. In multiple threads it has been said that the at&t unlock code only works on stock roms
Sent from my HTC One using xda app-developers app
: HTC One M7 AT&T (Unlocked, Rooted, Bootloader Unlocked, S-OFF)
: Android Revolution HD 41.0 by Mike1986
Sense 5 Toolbox, Gravity Box [KK],
TWRP v. 188.8.131.52
- Galaxy S4 I337 AT&T unlocked
- Nokia Lumia 920 Unlocked - Dev AT&T ROM