Why does my Lumia 520 restart simultaneously?

[Windows Central Question]

why my mobile lumia 520 restart simultaneously?

it restart showing a smiley then switched off again

 

[abhishek singh21]

Re: why my mobile lumia 520 restart simultaneously?

it restart showing a smiley then switched off again

it seems you were using windows 10 TP, could be your windows has crashed smiley should be blue screen and a sad face.

here this thread should help you

http://answers.microsoft.com/en-us/...my-nokia/c9c117a6-2d55-4f7a-a9c1-5f11b01b884f