S3 mini switches off randomly My S3 mini switches off when I use social media or browse internet, then won't switch on until I have put it on charge but then it has 75% battery, just comes off charge and then the same thing happens.
When I make or receive calls, it would mute on its own, turn on the bluetooth and/or just switch off.


Please advise what the problem could be.

Thanks 

RG
Have you tried doing a factory reset, if that doesn't work it might be a faulty battery