I have an iphone 2g, which i just swapped the mother board from my cracked screen, since my battery died. Im in itunes DL the new firmware, 3.1.3 and using the current itunes and i get this error ":The iPhone "iPhone" could not be restored. An unknown error occurred (1600)" So i DL "iREB" to bypass the issue, yet it doesnt work. Can anybody please help me out? Or how i can get this phone running, to any firmware?