Stuck on the Apple-logo

[gimmesomehelp]

Hi guys,

You guys probably have heard this problem a lot.
I've reset my iPhone 3, first a loading bar appeared, that all went well. But after the bar was full the apple logo appeared, under the apple-logo is a loading round thing which is stuck as well (it isnt twisting).
I've searched a lot for help on the internet but i can't find the right solution.

The phone is jailbroken
I can't turn it off or on.
I can't connect it to iTunes..
Sometimes it suddenly turns off for 1 second and then the apple logo appears again without a twisting loading thing. But after a while the loading thing wil appear again.
So what do i have to do? Please help!

 

[gimmesomehelp]

The recharging battery suddenly appeared.
I don't want to touch anything because i'm afraid that it will be stuck again.
(My iphone is connected to my computer, but itunes doesnt recognize it (i believe))

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Now is the screen showing the apple logo again.. I didnt touch anything..

PLEASE HELP!