I have an HTC One M8: twrp 18.104.22.168, stock ROM, S-On, firmware 22.214.171.124, cidnum: T-MOB003
My stock ROM has been having some bugs and I would like to fix this and factory reset isn't fixing them. What would be the best way to do this?
My thoughts are:
Flashing a fresh stock ROM (can't seem to find the right file though?)
Restoring stock ROM from nandroid backup (don't have one and can't seem to find the right one for me either?)
Using RUU (I have no idea how to do this)