iPhone won't connect

[Hairy Blotter]

Hi

I've got a problem with an iPhone, i've promised a buddy to look at.
It's stuck in recoverymode, and i can't kick it out of it. I can put it in DFU-mode, but when it reboots it boots directly to recoverymode again.

The big issue is that it's only iTunes that will register and connect to the iPhone. Both in recoverymode and DFU-mode. When i try to restore i get error 23, error 1600 or error 1604.

I've tried everything to get out of recoverymode:

Redsn0w 0.72
Redsn0w 0.8
Independe
Ziphone
iDemocracy
purplera1n
iBooter
iRecovery

And on my windowsmachine: iBrickr. The result is the same EVERYTIME:
None of the above programs, except for iRecovery where the reboot-command doesn't change anything, are capable of kicking the phone out of recoverymode.

Anyone got any ideas? :-D

[i.Annie]

Don't restore from backup? Are you just clicking on restore? If not, did you make sure you're using the right firmware with the shift+restore option?

[Hairy Blotter]

I've tried normal restore and SHIFT-restore... I'm on a Mac, so it's OPTION-restore :-)