Download AOSPFor GT-I9190 - Click here.
For GT-I9195 - Click here.
Gapps - Click here.
- Download the rom zip file from the above download link to your sdcard
- Download the Gapps package in order to have Google apps
- Power off your phone, boot into CWM Recovery by holding Volume up + Home + Power keys simultaneously
- Choose wipe data
- Choose install zip
- Choose choose zip from /storage/sdcard/1/ (choose zip from external sdcard for older recoveries)
- Choose the rom zip file then choose Yes to confirm
- After rom has been installed, again choose choose zip from /storage/sdcard/1/ (choose zip from external sdcard for older recoveries)
- This time flash the gapps zip file
- After you are done, go back and choose reboot system now
Unfortunately, there is currently no build available for the GT-I9192 but you may check this post daily for any updates. Huge thanks goes to xda member Silesh.Nair.