So I have the 4.0.4 ICS.
I don't know all the terms like CFW and NAND and blahblah and I don't really have the time to read 300 pages of replies...
I want to update to the 4.1.2 or 4.2 JB
I did root the phone on 4.0.4, but it was a semi successful root, as superuser and overclocking worked fine, but things such as "change the extension of system files" would not work.
I now get the "This device is not allowed to update" error when I try the official airborne update.
I also need the WIFI G3 and GPS.
What can I do ? I tried to flash the zip files from SD but I constantly get the ro.product.device error.
Most links people are refering to are dead.
How do I flash a firmware ? Can't I just flash the official JB firmware ?
How do I unroot my phone so that I can make the official update ?