Recently, iPhone X was released and there have been many changes. There have been a lot of changes in iOS, but the biggest change is that the Home button is omitted. The home button with the fingerprint scanner (intended pun) has been removed from the device. Instead, Apple has probably introduced Face ID, a better and more secure biometric security system. Unlike Face Detection on Android devices and Iris Scanners on Galaxy S8 / S8 + or Note 8, Face ID uses a different technology. It uses a dot projector to read all information using over 30,000 invisible dots on the face and floodlights and infrared cameras that project infrared rays. The entire data is then collected and processed to create an accurate 3D map.
Now everything sounds great, but Apple has put a lot of effort into improving the privacy features. Therefore, in some cases, your face ID may be disabled to protect your privacy. On older iPhones, you could turn off Touch ID by pressing the power button five times. If you use iPhone X, Face ID is disabled.
- To enter emergency screen or turn off device
- If you reboot your device
- You have not unlocked iPhone X using Face ID within 48 hours.
- If you try to unlock using Face ID twice
- You have not unlocked in 6 days using a passcode / pin / password.
So if you want to use Face ID again, unlock your device with your PIN or password, then lock your device again and try unlocking again with your face ID. Also, if you do not actually purchase exaggeration around Face ID, you can go to Settings -> Face ID and Password to completely disable Face ID.
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