Factory restore failed to complete on iOS 4.0.1
I have an iPhone4 with iOS 4.0.1 unlocked via jailbreakme.com.
I had some problems with my carrier settings, and tried to factory reset my phone, to see if the problem would be solved. Sadly, I was not aware of the fact that this is not a "healthy" thing to do on an jailbroken iPhone4, so right now my device is just stuck into the boot process.
I can put the device into DFU mode, but unfortunatelly, when I bought my phone, it was already too late to save the SHSH 4.0.1, so I can't really restore the firmware to this version.
So, I have two questions:
1) Why can't I factory reset an iPhone4+jailbreakme.com to factory settings?
2) Is there anything I can do restore my iPhone to a working condition (besides waiting for an updated pwnagetool, which would allow me to build a custom 4.1 firmware)?
Thanks in advance,