Samsung s3 screen buzzes, then freezes and phone switches itself off.
In the past 2 weeks if I'm using my phone for more than 30 mins; the screen starts buzzing, the phone then freezes and switches itself off. If I take the battery out and switch it back on it freezes on the first screen- you know when it first lights up after switching the phone on.
The only way to get the phone running again is by putting it on charge so I'm charging my phone 5 times a day now, even though it has full battery. It's really annoying and it means I can't use my phone outside as it will just freeze on me. What do I do?