Ok, I dont think is a repost of anything because I spent 3 days searching for an answer, but okay. I have a 8GB MC Model iPod Touch that is jailbroken with Blackra1n on 3.1.2. I want to know if there is anyway to restore/update iOS 4 or 3.1.2 again. I have read things about SHSH blobs (even though I have no clue what those are) and something about ECID numbers. Every time I try to restore/update to 4.0, i get iTunes error 1602. I've troubleshooted at Apple Support Page and it says something about restarting your computer, trying different USB ports and trying it on a different computer. Can somebody please help me restore. P.S. I am only restoring to iOS4 to jailbreak it. However, I am still confused on whether or not there is a jailbreak for firmware 4 on my type of iPod. Even if there isn't can you please tell me how to restore?!?!?! Thanks!!!