I have a jailbroken Touch. After I install oktoprep and try to upgrade the firmware I get a message something like "preparing Ipod for upgrade" but it seems to stall and I get a 1602 error. I've done everything I can think of and keep getting the 1602 error. I've uninstall ed itunes and reinstalled it still get the error. I get it while trying the upgrade from apple. I get the error while trying to upgrade with a downloaded firmware file. Am I out of luck on this upgrade?