Phone turns on and off by itself constantly
My Xperia M2, out of nowhere, started to do this. The Xperia screen that pops up when you turn the device opn appears, then it shuts itself down; Repeat.
I tried waiting for the battery to run out. The phone slightly overheated, then I charged it again and the moment it had a little charge, it started doing this again. The On/Off button isn't stuck or anything alike.
What do I do?
Is this a good question?