Download from Market "Terminal Emulator"
Open it and type this commands:
echo -n ON > /efs/imei/keystr
100% it will works :)
We're releasing Android 4.1 in AOSP today.
The name of the tagged release is android-4.1.1_r1.
The name of the development branch is jb-dev.
We recommend that you create new clients, even if you're working in
the master branch. It'll make y...
Here is the 1.2 I uploaded to mediafire
AOKP JB Milestone 1 is already out
Click here :D