Here's how the new feature works. First, get an eligible Pixel phone and then update it to Android 16 beta 3 (I'll go over how in a little bit). Next, go to Settings > Security & privacy > Device unlock > Face & Fingerprint Unlock > Fingerprint Unlock, and enable Screen-off Fingerprint Unlock. Now lock your phone and place your finger where the in-display fingerprint sensor is located. This should unlock your smartphone.
The devices that support Android 16's screen off fingerprint unlocks
Installing Android 16 on your Pixel phone
Before downloading and installing the Android 16 beta, you should make a full back up of your device. Beta software is unstable and can cause critical apps such as the Phone app to stop working. If this happens to you, you may be out of luck, as Google warns that reverting to a stable version of Android requires you to erase all data on your phone and that restoring from a backup may not be successful at times.
Once you've prepped, and if you're okay with the risks, visit Google's Android beta website and select View your eligible devices. After that, follow the on-screen prompts to enroll in the Android beta program. With that, just go through the steps above to start unlocking your phone without turning on the screen first.
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