Now I have realized I have another problem, and a more serious one, I guess...
Apple does not sign 4.0.1 anymore and I got my iphone only today..
It is currently jailbroken, because it is on 4.0.1, but of course I could not save shsh for this device.. I have the shsh only for my 3gs..
Which means this is my last jailbreak, meantime.
Is it possible somehow to use 3gs shsh with iphone4 on the same firmware in order to restore?