Looking for Help

[SimonWi]

Hey guys,

I'm owning an Exynos S8 and installed twrp. Somehow, when i want to wipe data to factory reset, it says unable to mount /preload.
So when i start my phone normally, it stays in the "GALAXY S8" screen with the black background (forever).
Does anybody know how to fix it? Or even better, how to proceed if i want to install LineageOS ?
Please help and thanks in advance!
UPDATE: I was able to wipe preload by disabling MTP. Only now, when i choose the reboot TWRP says "no OS installed. Are you sure to reboot?" I wouldn't want to try that ^^
SOLVED - i flashed LineageOS

 

[ocnbrze]

do you have a nandroid backup? you can also flash a custom rom. looks like you wiped the os some how. as long as you have twrp you should be fine.