Galaxy SII Spontaneously Shutting Off
 

Hi all,

For a while my Galaxy SII has been just shutting off from time to time, so I thought it might just be crashing which is par for the course with phones sometimes. But since last week it has been doing it virtually whenever it's unplugged. I get a few minutes of use and then it loses reception and shuts down moments later. The screen flickers a bit before it happens. I don't think it's the battery, as that seems to charge fine and shows plenty of charge left it in when it switches off.

I'm just wondering if anyone else has had the same problem and what the fix was. I'm thinking about just doing a factory reset, but don't want to do that if there's an easy fix.