My lumia 520 get restart when i was on call?

[Windows Central Question]

when i will make call from my lumia 520 it will automatically restart..?
is there some hardware issue or something else?
plz help me ..

 

[RumoredNow]

Try this trick...

Lumia 520 has a known issue where (over time) the battery no longer sits tightly in its place.

Make a small shim from paper and insert it under the bottom edge of the battery so that it gets pushed up into the contacts. Not too tight. Just about 3 thicknesses of paper. Also make another shim for under the battery door so it pushes down harder on the battery...

This stops the erratic disconnect with the pins when the phone gets joggled.