HTC Desire C screen just flashes when I press unlock! Help! So I turned my brightness all the way down on my HTC Desire C and it just locked itself. Now when I press the lock button it shows me the lock screen for about a second then locks itself!? HELP!!
Typically I found this after finding the same problem. I too just turned the brightness all the way down. You can get back in by holding the power for a while and restarting... Might do it again and turn the brightness back up and see. Tracker1972

Edit- brightness back on automatic, now working fine again :-) good luck with yours!