[PiggyMiddle]

I put the 520 on charge first thing every morning and it is rarely below 80% when I do but I charge it to 100% anyway.

Three days back I took it out of my shirt pocket around 2:00pm and it was dead. I was miles from home so could not charge it, but when I got back home, put it on the charger and sure enough it was totally dead - red battery symbol. I recharged it and it has been fine.

A couple of hours back it beeped for a few seconds and I checked and nothing was showing for text etc, so flicked it off and back into the shirt pocket.

About 15-minutes back I thought my pocket was on fire and pulled out the phone and it was really hot, I mean almost too hot to touch. It was on at the lock screen and when I flicked that up to enter the password everything was enlarged so I could only see 2, 5 and 8 so I whipped the battery out.

I let it cool down, put the battery back in and it is 58%. Currently back on charge and not even warm.

Any thoughts? Time to toss it?

[worldspy99]

Might want to try and see if a new battery helps. Or if you are on Preview for Developers might want to use the Software Recovery Tool and get the phone back to the official Software/Firmware version.

[PiggyMiddle]

Thanks, battery is only 3 months old, bought from Nokia/Msoft and it is the stock win8.1 Cyan. Wifi is always off too and the plan has no data, just voice and text.

[RED team]

I think it's because of low hardware for 8.1...

[PiggyMiddle]

Anyone have sensible answers?
It has had 8.1 on it since the release of Cyan about 5-months ago. This overheating started three days back and nothing has changed since that Cyan install back whenever that was.