been having a problem with My S3
getting a lot of occasions where when you press the power button on the side of the phone the screen goes off (as it shud if your not using the device) HOWEVER what should happen is when you press it again the screen comes back on, im finding 80% of the time it isnt and it can often mean i end up pressing the button for few min to get the screen on
is this likely to be a fault with the power button than a screen fault? Has anyone had a similar issue and can say roughly how much it would be to fix it?
Also, im thinking i need a new battery for this phone as its old, i noticed a fair few people sell S3 batteries on ebay both normal and high powered batteries. are these ok are best to avoid them?
any help appreciated