weird issue in that for the past two days the phone will not power on. I can hit the power button which "does not appear to be stuck" and it will briefly turn on getting to 1st splash screen before going black and not coming back on. Can't get into anything. While ago messing with it I had it fully boot but when the screen timed out I hit the power button any it wasn't on anymore. I even got it to turn on for the drive home for about an hr and was able to listen to pandora. I have unlimited data so I didn't want to get a new phone. So I looked online and saw someone had a brand new s4 for 320.00 bucks.. which I think I can keep my data if I buy a phone elsewhere correct? I also looked at replacing the motherboard for my s3 which was 90 bucks. Need some assistance either making my s3 work or ideas of what phone to get under 300.00