Procedure.
1. Search on Google 'Aosp Extended Rom For Your Device Name'.
2. Download Aosp Rom zip file.
3. Download Gapps 8.0.
4.Go to Recovery .
5. Click on Clear data, Wipe dalvic and Clear Cache.
6.Click Install and select rom zip and gapps 8.0 zip and flash.
7.After flash Reboot System.
You Have Successfully Installed Android O.
This Rom is 100℅ Bug Free.
