How do I use my recovery key
what are the steps to using my recovery key
iPhone SE, iOS 15
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Use a recovery key
If you forget your Apple ID password, you can try to regain access using your trusted device protected by a passcode. Or you can use your recovery key, a trusted phone number, and an Apple device to reset your password. Make sure the device is running iOS 11 or macOS High Sierra or later, and be sure to enter the complete recovery key including upper-case letters and hyphens. Learn more about what to do if you forget your Apple ID password.
If you decide to stop using a recovery key, follow the steps above on your iPhone, iPad, or iPod touch, and slide to turn off Recovery Key. On your Mac, click Turn Off in the Recovery Key section.