My phone broke (I'm not sure how, no water damage, and I've been really careful about dropping it) a couple days ago and since then it's been stuck in a boot loop. No matter what I've tried, I can't get it to finish booting. It starts to boot and after a couple seconds it turns off and tries again. I can't get to the Bootloader, Recovery mode, or anything. The only menu I can get to is VolumeUp+Down+Power, and I can't even get any further than that. I've tried letting it die and then charging it, and it receives a charge, but it doesn't boot. I can't do a factory reset because I can't get far enough into any of the phones boot screens to do so. Also, booting without SIM and/or SD Cards doesn't work either. Any suggestions as to what to do? I have a lot of important files on it and i really can't afford to lose them.