iphone unavailable
iPhone 7 Plus
Your data is not lost if you have a backup either on iCloud or iTunes.
If you see an iPhone or iPad unavailable message or a "Security Lockout" screen
If you forgot your passcode, you can use your Apple ID and password to erase and reset your device without a computer.
Learn what to do if you see "[Device] unavailable" or "Security Lockout" on your iPhone or iPad.)