black screen and blinking buttons known bug or?

[iop777]

Hey guys, I love the HTC 8S, I haven't had any issues until now. Lately I'll go to unlock the phone and the screen will be black and the 3 buttons will blink every second until I reset by holding the lock button for 10 seconds. It's never done this before but I'm wondering if this is a known bug. Any ideas?

 

[DBDev]

I can't find any information on it, so it's probably not so known. I think you should contact HTC's support.