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I am trying to downgrade an iPod 4g from 6.1.3 to 6.1.2 using tiny umbrella and this is the message I keep coming up with "An Unknown error occurred (1600)"...
06-22-2013, 11:10 PM #1
06-23-2013, 07:29 AM #2
You put ya phone in dfu mode?
09-17-2013, 05:46 PM #3
Are you using SHSH Blobs?