I successfully upgraded my 2g iPhone to 3.0 using redsn0w. Used master reset on phone (to give to my son), master reset seemed to hang - after 40 min (maybe I was impatient) I did a force shut down.
On restart phone gets no further than apple logo.
I tried using redsn0w again, PC recogises DFU devise but redsn0w tells me I may be pressing buttons in incorrect sequence and will not run any further.
Now when i try to start phone I do not even get any apple logo.