After entering passcode, screen goes black.

(see title) and after that happens, I can see the screen again by tapping the screen or pressing the physical button on the right below the volume keys. And always go back to login screen. Rinse and repeat.

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0