Thank you. So from another rom with treble have I to flash a basic rom or I just wipe system data....
Inviato dal mio ONEPLUS A5010 utilizzando Tapatalk
If you are changing ROMs (treble or not), you should clean flash
Personally, I do the following...
2. Wipe Dalvik/Art, cache, system, data, vendor (not internal storage)
3. Delete /sdcard/Android folder in TWRP file manager
4. Reboot to recovery
5. Wipe Dalvik/Art, cache, system, data, vendor (not internal storage)
6. Flash ROM, GApps, Magisk (if you want root), no-verity (if needed, depending on the ROM)
Step 4 is overkill but I do it anyway.
If you move from an existing treble ROM to another treble ROM, your vendor partition is wiped and the new ROM will flash the new vendor accordingly. If you move from a treble to non-treble ROM, the vendor partition gets wiped and is not used.