People using Face ID to unlock their iPhone may sometimes find that the feature has stopped working on their device, which necessitates the use of a PIN to get access. It could be a frustrating experience, and many users are likely to be unhappy with the issue, especially when they just can't seem to find a way to fix the problem. Thankfully, there are a few methods that users could try to address the issue.
With Apple getting rid of Touch ID on the iPhone X, Face ID has become the only biometric identification method on an iPhone. It is required to not only unlock the device, but also to authenticate purchases, sign in to some apps, and carry out a myriad of other tasks. So a broken Face ID system can be an issue in many different scenarios.
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Restarting the device is always the first step towards troubleshooting any problem with just about any operating system, and that includes iOS and iPadOS. So if Face ID isn't working, try and restart the iPhone or iPad before trying another method. Also, make sure that the face is exactly perpendicular to the display while trying to use Face ID, which would give the device the best chance of detecting the user. Another troubleshooting option is to clean the iPhone's notch area to ensure that the Face ID sensors are not being obstructed by dirt or grime. If that doesn't take care of the problem then, according to Apple, check whether the iPhone or iPad is updated to the latest version of iOS or iPadOS. This should get rid of any bugs that might be creating problems with Face ID in older versions.
If the aforementioned steps don't yield results, check the Face ID Settings by going over to 'Settings' > 'Face ID & Passcode' and making
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