so today, i downloaded cydia by jailbreakme.com, so i can get an app that locks my phone without using the sleep button, because mine is broken. then, i tried to get a different app & it asked to reboot my phone, i let it.. & for about 6 hours now.. it's been stuck on the apple logo. i let it die.. tried to plug it back in when it was a red battery and lightning bolt.. then it went back to the apple.. what do i do now? i'm seriously stuck, i have no phone, and nothing is working. i have an iphone 4 from ATT, with no power/lock button.. thanks ahead of time.