MY nokia lumia 630 started buzzing and wouldn't stop

[WPCentral Question]

I recently got a nokia lumia 630. Today i was setting up my giffgaff sim and suddenly the phone started vibrating and wouldn't stop. It finally stopped when i restarted the phone. IS this something to be worried about?

 

[Ayaz A K]

I had the same problem on my 620 few months ago and I just took the battery out and it was back to normal