Try again after each step
- Make sure that your Mac or PC is up to date. If you're using iTunes, make sure that you have the latest version of iTunes.
- Connect your device to your computer with a USB cable and locate your device on your computer. If your device doesn't appear in Finder or iTunes, find out what to do. If you have forgotten your passcode or your device is disabled, find out what to do.
- Restart all your devices.
- If you are using a Mac, skip this step. If you are using a Windows PC and iTunes won't respond or your backup never finishes, you may need to update, change, disable or uninstall your security software.
- If you own more than one computer, try to make a backup on another Mac or PC. Or, use iCloud to back up your device and restore information from your iCloud backup.
- If an alert appears stating that an error has occurred, your backup is corrupt or incompatible or there's not enough disk space, find out what to do or each error message by looking at the below information.
- Contact Apple Support.
If an alert appears stating that an error has occurred
If a message appears stating that there's not enough disk space
If a message appears stating there’s not enough disk space when you are trying to back up your device, you will need to free up some space on your Mac or PC. If you are still seeing a disk-space error even after you have freed up enough space, contact Apple Support.
If an alert appears stating that your backup is corrupt or incompatible
If your iOS or iPadOS device can't restore from a backup because the backup is corrupt or incompatible, make sure that your computer is updated. If you see an error stating that your iOS or iPadOS software is too old, find out how to update your device to restore the backup. If you still can't restore the backup, you may not be able to use that backup. Try to use an alternative backup or an iCloud backup, or Contact Apple Support for more help.