iPhone 3GS Won't Boot Up After Pwnagetool Jailbreak

[fedex_ground]

I have an iPhone 3GS running 3.1.2 when I jailbroke using Pwnage Tool. Everything worked fine, then I installed a BMW theme on my phone via Cydia. It told me to reboot the device, so I did. After which it would only give me the pineapple logo and then it would power off. I have tried plugging it in but that did nothing. I have tried to hold both home and on off button, but that also did nothing. Nothing is working at all. Please someone help!!! anything!!!

 

[LVCIFER]

Have you tried a DFU restore?

 

[klir]

Hey fedex_ground, did you fix your problem?

I got the same problem after I pwnaged it with 3.1.2 on my iPhone 3GS.

Can you help me?

 

[LVCIFER]

You could also DFU restore to 3.1.3 IF YOUR PHONE MEETS THE CRITERIA. Even if your phone won't boot up, all your jailbreak files are still there (unless you upgraded officially) so that enables you to continue DFUing to a new OS, like a custom firmware created by PwnageTool.