How to Install GSI ROM on ANY Android Device w/ Project Treble & Unlocked Bootloader! [TWRP Method]
For those of you who want to install Project Treble GSI(Generic System Image) ROM on your Android device with unlocked bootloader, you can use TWRP recovery to install them. The process is actually not entirely different from flashing a regular custom ROM in TWRP, the only difference is that you will be using “Install from image” option instead of the default “Install from zip” option. (If you don’t know what Project Treble is, please see “What is Project Treble for Android”.What are GSI ROMs?