I jailbroke my phone and everything works fine, unless I update certain jailbroken software. It varies as to what software causes this because it's happened 3 different times. I'll update jailbroken software and my phone will need to reboot, so it reboots and hangs on the apple boot logo and then will power off. I can't understand what is causing this issue and so now I'm stuck at work with a phone that won't power up and I swear to Christ I'm going to throw it against a wall.
WHAT THE HELL IS GOING ON
iPhone 3GS 3.1.2