Tried( But it just back me to Privacy settings. I tried to access to Setting and enable Dev options but when I tap on build number nothing happen( I tried to reflash but when I start flashing gpt.bin partition it gives me:
(bootloader) Preflash validation failed
FAILED (remote failure)...
I just returned to the stock mm rom on my xt1540 and faced the problem with Google account. It says that I reset the phone and I need to login with last synced Google account, but I just flashed the rom and I can't understand which account I need to log in. Help me please :3...