download stable ROM and flash via settings first back personal data before flashing.
can i do it without losing data
no you can't
satble to beta ok but beta satble can't
Please, always read the instructions before flashing ANY beta software...
There are exact instructions in the Beta posts. Next time search the forum as well, as this has been asked before.
yes read before flashing and the instructions.
Closed as redundant and useless
Tech Talk: OLED, Gorilla Glass and other screen terms explained
by KeBlam, 2019-08-21