I'm running Windows 7 Ultimate, the latest version of iTunes, and have an iPhone 4 which I want to downgrade from iOS 4.3.4 to iOS 4.3.3.
I did a restore with a stock 4.3.3 firmware and had my SHSH blobs backed up through Cydia, and got the normal 1013 error.
Downloaded TinyUmbrella, it won't detect my iPhone! The device shows as INVALID, and when I click Exit recovery, the device just disconnects and then reconnects, but *doesn't* exit recovery mode.
is it in recovery or DFU?
DFU mode would have an all black screen and would be the proper way to downgrade the phone.
Also, make sure you have
in your hosts file and that you reboot after adding that so it checks cydia and not itunes.
You shouldn't be in recovery or dfu mode when using TU.
Make sure you check that the server points to cydia.
Try disabling your anti virus program.
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