My iphone will not respond, what should i do?

I went into cydia and the reloading data thingy popped up. I let it do its thing, but it never went away, so I tried to exit cydia and found that my home button was not working. Then, I tried putting the iPhone to sleep, and that button didn't work.

Added (1). It's at like 25% battery, so I might just let I t die. Any info would be nice in case it happens again

Umm.that's tough… Obviously try to restart it. (Hold lock and home button). If not try to restore it.yeah i know it would suck to loose all your jailbroken data but there's not to much you can do.

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