I have Note 2 SHV-E250S and having very fast battery drain of almost 10 to 15% per hour without any use, but strange thing is that I powered off my cell with 80% charging and after 5 hours I couldn't turn it on. To check that again i did that again next day and same happened, also set part which is between camera and battery remain heated always even with set powered off. So can anybody help please?