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Thread: iTunes error 1604
07-02-2010, 12:44 AM #1
iTunes error 1604
i downloaded a custom 4.0 JB firmware for my 3GS and everytime i try to restore to the custom.ipsw i get an error 1604 after about 5 minutes. any ideas or thoughts? Thanks Guys.
07-03-2010, 11:54 AM #2
What firmware version are you on and which did you use to jailbreak?We're all just toymakers in the game of life.
07-03-2010, 04:34 PM #3
im on 4.0. i was on 3.1.3 jb with spirit. and i updated to 4.0 last week.
07-04-2010, 04:48 AM #4
You can't use a custom firwmare once you're on 4.0, you'll need to downgrade to 3.1.3 (or lower) first and then shift-restore to a custom 4.0 firmware from there.
To downgrade, you'll need to have your 3.1.3 (or lower) SHSH files stored. You have them stored on Saurik's/Cydia's server if you've ever clicked the 'Make my life easier' button in Cydia. You can read about the downgrade process here: Caching Apple's Signature Server - Jay Freeman (saurik)
Just to add, all this requires that your phone has the old bootrom.We're all just toymakers in the game of life.