Hi to all

I have a big problem (in my opinion)...

The whole story:
When the Spirit JB came out, I jailbroke my 3GS with 3.1.2 FW, which was never jailbroken before. Everything went fine.
Today I wanted to delete the whole thing for cleaning purposes (long iTunes backup, etc.). So I did this in the iPhone menu (delete content and preferences).
From this moment, hell started. The iPhone restarted and stuck in the Apple Logo. I brought it in the Recovery Mode, started iRecovery and applied the "auto-boot true" thing for about 10 times. Still in Apple Loop.
So I restored the iPhone like it is described in "Preventing baseband update as a last-ditch effort [iPhone Dev Team]" because I didn't have SHSH blobs for 3.1.2 before 3.1.3 came out. iTunes told me Error 13 (Full iTunes Restore Log) but I was able to connect with iRecovery to reboot. Still in Apple Logo Loop.
Tried iRecovery "auto-boot" for several times, which helped nothing.

I can put the iPhone in Recovery or DFU Mode without problems, but it doesn't boot either.


Thank you in advance
Pascal