Troubleshoot phone update errors

If you encounter any issues while updating your Windows Phone to the latest software version, we have a variety of resources to assist you.

Error codes

  • C1010007 and 800704C7: The Zune software doesn't recognize my phone, or stops the update in the middle of the process
  • 801811A5: My computer can't connect to Windows Phone Update
  • 80181197: Make room on my computer for phone updates
  • 800705B4: The update times out and doesn't complete successfully

Other issues

If none of the previous fixes work, try restoring your phone to its previous state with the backup that was made during the update process. For more info, see Restore a backup to my phone.

If you need additional help, see the Windows Phone Support site.

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