Need help with Iphone 4 troubleshooting

[Kalamari Kid]

I have a Iphone 4. It has been jail broken.

I clicked on my facebook application and the screen went to black and would not load facebook. I hit the home button and tried again, and the same thing happend.

I did a hard re-start on the phone, and the phone keeps restarting itself.
It shows the apple symbol than starts to load, powers down and and repeats the same process. The phone has been doing this for the last hour.

 

[Kalamari Kid]

Its basically rebooting itself every 60 seconds continuesly

 

[Sane_Man]

I would follow the back-out procedures for your jailbreak and go back to stock. Once you figure out what went wrong, reapply the jailbreak.

 

[JackTheTripper]

Have you tried syncing it?

 

[dwarf]

Restore it back to original firmware then re-jailbreak.

What firmware are you running? What did you jailbreak it with?