1604
error 1604 after update isn't resolved
iPod touch
error 1604 after update isn't resolved
iPod touch
This error is often related to USB timing. Try changing USB ports, using a different dock connector to USB cable, and other available USB troubleshooting steps (troubleshooting USB connections. If you are using a dock, bypass it and connect directly to the white Apple USB dock connector cable. If the issue persists on a known-good computer, the device may need service.
If the issue is not resolved by USB isolation troubleshooting, and another computer is not available, try these steps to resolve the issue:
If the steps above do not resolve the issue, try restoring using a known-good USB cable, computer, and network connection.
1604