Error 21, 22
Apple TV is not in DFU mode. Re-run Seas0nPass to ensure the Apple TV is in DFU mode before restoring in iTunes.
Error 1600, 1601, etc...
Often times these errors will be false positives. If you're seeing one of these you may simply try connecting the Apple TV to your TV to see if the red FC logo appears in place of the normal settings icon. As long as the red FC is present then your Apple TV has in fact been jailbroken.
If no red FC logo is present then you can try the tips below.
- Ensure all other iDevices (iPods, iPhones, iPads, etc...) are disconnected when restoring in iTunes.
- Connect ONLY the USB cable. Power, ethernet, HDMI, and optical cables should remain disconnected.
- Try using a different USB port and/or removing any USB hubs.
- Try an alternate micro-USB cable - a good, low cost cable can be found here.
Error 3194, Apple TV is not eligible, etc...
Apple is no longer 'signing' the version of Apple TV software you are attempting to restore. Update to the latest version of Seas0nPass to jailbreak and install the latest Apple TV version.
If you're certain the latest version of Seas0nPass is being used, then unfortunately there may not yet be a jailbreak available for the current Apple TV software. Check the version info page for more details.
Full details on these as well as other iTunes restore errors can be found here.