Disconnect all other USB devices from the computer.
Click “Help” on a PC or click “iTunes” on a Mac.
Click “Check for Updates.” According to the Apple website, updating iTunes to the newest version fixes many instances of error code 3194. An updated iTunes account should be compatible with most devices, including older, downgraded versions.
Apple iTunes has a built-in feature that lets you rollback iPods and iPads to their original factory conditions. This type of system restore is useful for correcting certain operating glitches, but when you downgrade a device, error code 3194 sometimes appears. This error specifies that your iTunes “version is not eligible for the requested build.” In other words, iTunes and your device are not compatible. You can fix common occurrences of this error in a few minutes if you know how to approach the compatibility issue.
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