I have an Iphone 3g that I unlocked and Jailbroken a pretty long time ago. But for the past few months once in awhile when I pick it up to use it, It wont work. I'll hit the power button...Nothing. The home button...Nothing. I'll hold the power button...Nothing. The way I found to "Wake it back up" Was to connect it to my computer via USB. Then I'd restart it and everything would be ok. But now it's getting wose and more frequent. Like right now, I have it connected to my computer. It'll make the beeping sound when I hook it up to the computer, then Itunes will recognize it but I have to unlock it with my passcode wich I can't type in since nothing appears on the screen. Another thing that I found that works is when it's frozen, I'd call it from another phone and it'd wake up and everything would be fine....Now just a ringtone. Has any one had this prob. before? Help would be nice. Thanks.