How to Fix iPhone 16 Face ID Not Working After iOS 26.1 Update

iPhone 16 Face ID Not Working After iOS 26.1 Update is usually caused by update-related setting changes, damaged caches, or a service that failed to reload properly after the latest software install.

Method 1: Make sure the TrueDepth camera area is clean and unobstructed

A dirty sensor area or screen protector misalignment can stop Face ID from working.

Wipe the front camera area with a soft dry cloth.
Remove any case or screen protector covering the sensors.
Test Face ID again.

Method 2: Restart the iPhone

Face ID services can fail to reload correctly right after an iOS update.

Restart the iPhone normally.
Unlock it once with your passcode after the reboot.
Then test Face ID again.

Method 3: Check whether Face ID is enabled for the feature you need

The update may have changed Face ID permissions for unlocking, apps, or Apple Pay.

Open Settings > Face ID & Passcode.
Enter your passcode.
Confirm that the needed Face ID options are enabled.

Method 4: Update iOS and the apps that rely on Face ID

A point release may already fix a biometric bug introduced in iOS 26.1.

Go to Settings > General > Software Update.
Install any available update.
Also update banking or password apps that use Face ID.

Method 5: Turn off Attention Aware features temporarily

Attention settings can interfere if the camera or sensors are misreading your face after the update.

Open Settings > Face ID & Passcode.
Turn off Require Attention for Face ID temporarily.
Test unlocking again.

Method 6: Reset Face ID and set it up again

If the biometric profile was corrupted during the update, rebuilding it usually helps.

Open Settings > Face ID & Passcode.
Tap Reset Face ID.
Set up Face ID again and complete the full face scan.

Method 7: Reset all settings if Face ID still fails after setup

A settings reset can fix system-level biometric configuration errors without erasing files.

Open Settings > General > Transfer or Reset iPhone > Reset.
Tap Reset All Settings.
Set up Face ID again afterward.

Method 8: Contact Apple if Face ID says it is unavailable

If iPhone reports that Face ID is unavailable, the TrueDepth hardware may need diagnosis.

Open the Camera app and test the front camera.
If Face ID stays unavailable even after resets, contact Apple Support.
Mention that the failure began after iOS 26.1.

If the problem continues after all of the steps above, visit the main iPhone 16 page for more troubleshooting guides.