The device (SONY_F3216 mobile) was getting charged (from a wall plug) at the time and was switched ON (showing display). During the middle of the charging it got switched off automatically. When I saw this (as mobile got switched off with no reason), I stopped charging, and tried to get it ON, but I couldn't. No display came after several attempts. I called Sony mobile customer care and as per their suggestion, I tried to switch ON the mobile while pressing the ON and volume up button, but I didn't succeed. I suspect something was happened at the time of charging. There was no voltage fluctuations, rains or other climate changes (rains, thunders and lightning causing the voltage fluctuations) and I was just sitting beside it, and didn't hear any sound or anything unusual when it is getting off. It was really curious to know that what had happened to my handset when it was charging!
