HTC ONE M8 is turning of when my I change my brightness or open apps! Why is that?

[AC Question]

So I have a HTC one m8 and some day when I wanted to change my brightness my phone froze for a few seconds and then turns off. Then it restarts itself and freezes on the HTC logo for half an hour. And when I was on the home page it restarted. Anyone had this problem before? And any solutions?

Thank you!

 

[B. Diddy]

Welcome to Android Central! If you have an SD card inserted, Unmount it (in Settings>Storage) and remove it, since a corrupt card can cause various issues.

If that doesn't work, try booting into Safe Mode to see if a 3rd party app is to blame: https://support.t-mobile.com/docs/DOC-10853

You could also try wiping the cache partition: https://support.t-mobile.com/docs/DOC-10672