Hello! I was using my iphone for music.When I woke up the next morning it was dead.I thought it was because I left it at 18%.I went to charge it and it bootlooped, I left it there for 2 hours and now when I charge it or try to turn it on it is stuck in the apple logo.Ive done a hard reset and I don't wanna lose any of my data on this phone.Can somebody help please?