- Nov 22, 2015
How long should I wait when I have the black screen with white ****** letters? I have updated to 6.12.12 via TWRP performed dalvik + cache clean and after I selected the latest zip from Updater app. TWRP screen appeared and after it reboots the screen freezes on the black splash. I waited ~15-20 mins with no progress, and usually there is something like 'installing updates' etc. Afterwards I was still able to access TWRP so Android 7 was not installed (thankfully) and I could reinstall 6.12.12. Any help?