Android 9.0 Oxygen OS

Developer
Fxshdeep & Other Devs.

Requirement

Treble ROM

Treble Recovery

Currently Booting Device

Only A Devices

Installtion

Download All Files
Fully Flash Treble ROM 8.1
Extract That 7z To Your TWRP Backup Folder
TWRP/BACKUP/$/(Your Serial Number)/
Reboot Into TWRP
Click On Restore> Restore System
Then Flash Patch File
Wipe>Format Data
Flash The fbe_disabler & Permissiver If Needed
Reboot Device

Enjoy!!!!

For More Help Contact On Telegram @Officialwhatsnew | Telegram Group