I woke up to a frozen phone yesterday. I plug it in every night before I go to bed and unplug in the AM. Upon unplugging my phone it was frozen. I pulled the battery put it back in a pressed the power button a short buzz and froze on the Galaxy S3 screen, repeated this step several times then the phone no longer responded "DEAD". Tested the battery and it was fully charged. Called Samsung Tech support they had me do a few things no luck the told me to go to my local Verizon store and have them re flash the phone. So I did they did not know what that meant. However they told me that it was still under warranty and that I will have a new one in a few days. I was totally surprised as I purchased it from Amazon Thumbs up to Verizon. My ?'S as I have been reading all sorts of things on the Internet. Is it bad to leave the phone plugged in all night? Does any one know what may have happened? I have not downloaded any thing new for sometime. All of my apps are from the play store. Will you damage the phone if you use anything other than a samsung cable? Thank you for you comments and suggestion.