Q: Restore from backup - incorrect instructions or missing
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Sep 21, 2015 11:27 PMby D.Cohen,Take a look at these Apple Support articles:
How to back up your devices using iCloud or iTunes - Apple Support
Restore your device from an iCloud or iTunes backup - Apple Support
If this doesn't help, take these troubleshooting steps.
If the Slide to Upgrade screen won't go away after you update to iOS 9 - Apple Support
Try to reset your device. This won't delete your data stored on this device.
- Press and hold the Sleep/Wake button
- Press and hold on the Home button
- Keep holding both buttons until the display turns off and back on with Apple logo on it.
Alternatively, you may go to Settings - General - Reset - Reset All Settings
https://support.apple.com/en-us/HT201559
As a final step, try the recovery mode. Turn your device off, then plug it to your computer with the home button pressed. Keep the Home button pressed until you see the iTunes logo on the screen of your device. After that on your computer you should see the iTunes window saying your device needs to be restored to factory settings. Click on the restore button.
