Originally Posted by conquesoextra
Thank you very much.
At the begining i did this:
1- Unlocked bootloader and flashed TWRP.
3- Gained S-Off
When i decide to sell it i did this:
1- Removed xposed and root.
2 - Relocked bootloader.
3 - Flashed RUU.zip (4.1.2)
¿What do you mean whit AT&T network? I unlocked the phone vía imei (using it in mexico whit Telcel) and still have the update appearing.
Sorry for my terrible english
First off, since you are S-OFF there is no need to relock the bootloader in order to flash an RUU. It will run just fine with an unlocked bootloader. Also when you flash an RUU, all the partitions get wiped so there is no need to do anything within the ROM such as remove xposed & root prior to flashing. The RUU will set the device essentially in a factory state.
As far as I understand it, the OTAs for carrier specific devices are served up by the carrier. So if the phone has been SIM unlocked and is being used on another network, if you go into Settings>AT&T software update, it will not receive any available OTA update. You will need to flash the update file manually using the information in this thread, http://forum.xda-developers.com/show....php?t=2659374
Since you are still on 4.1.2, you will need to run one of the recent RUUs in order to manually flash the OTA updates in that thread. The latest RUU available for AT&T devices is KK4.4.2 w/Sense 5.5.
Flash that then you can manually flash the OTA update to get Sense 6.