Hi I have a Samsung galaxy tab 2 10.1. I was on my device visiting facebook and when I went to look at a profile picture the device froze. it would'nt turn off although I did try to restart it. I left it about 15 minutes and the device had switched itself off. I tried to turn it back on but it would not come back on. I have attached the device to the charger but it doesnt appear to be charging either. Is there anything I can do before taking it to a repairers?