Hi Folks, I hope this is the correct sub forum to post my issues.

I have JailBroken iPhone 3G running on firmware 3.1.3. It's a locked US set(that has been unlocked)

The issues started when I tried to upgrade the firmware to 4.0.1 just now. What I did was to "Erase all content and settings" hoping that I would delete all the data first then go to DFU mode and start updating.

1 hour passed, I went back to see the iPhone and to my surprise, the phone stucked at an apple boot logo with spinning wheel on top of it. And at times, the phone tried to boot itself only to find the logo with the spinning wheel.

I've so far tried to put the phone into the recovery and DFU mode, but none of thee worked. My PC did not managed to detect the phone, once it is plugged it in. I'm getting worried. Please if you guys know something.

I am still unable to go to the DFU nor the Recovery mode. Been trying forever. Furthermore, my windows XP is not detecting my phone, I guess, everything is erased inside the phone.