Face Unlock on the OnePlus 15 is meant to make unlocking your phone fast and effortless. When it suddenly stops working, it can feel inconvenient, especially if you rely on it throughout the day. In most cases, the issue is caused by settings, lighting conditions, or temporary system glitches, all of which you can fix without advanced troubleshooting.
Why Face Unlock Is Not Working on Your OnePlus 15
- Face Unlock is disabled or not set up correctly.
- Poor lighting or face obstruction is preventing recognition.
- Camera access is restricted or blocked by another feature.
- Software glitches after an update or long uptime.
- The front camera lens is dirty or covered.
Set Up Face Unlock Again
Face Unlock may fail if the original face data is outdated or incomplete. Re-registering your face helps the system relearn your appearance and improves accuracy.
Open Settings, and then tap Security and privacy.
Tap Face Unlock, and then remove your existing face data.
Add your face again and follow the on-screen instructions in a well-lit area.
Check Face Unlock Settings
Some Face Unlock options limit when or how the feature works. If these settings are off, the phone may skip face scanning entirely.
Open Settings, and then tap Security and privacy.
Tap Face Unlock, and then make sure Unlock device and Wake screen are enabled.
Lock the phone and test Face Unlock again.
Improve Lighting and Visibility
Face Unlock relies on the front camera, so lighting plays a big role. Low light or face coverings can prevent the system from recognizing you.
Move to a brighter area and hold the phone at eye level.
Remove sunglasses, masks, or hats that cover your face.
Try unlocking again and see if recognition improves.
Clean the Front Camera
A dirty or smudged front camera can block facial details. This often happens without users noticing, especially after long use.
Wipe the front camera gently using a clean microfiber cloth.
Make sure there is no screen protector blocking the camera cutout.
Lock and unlock the phone to test Face Unlock.
Restart Your Phone
Temporary software glitches can stop Face Unlock from activating. Restarting refreshes system services and restores normal behavior.
Swipe down from the top to open Quick Settings.
Tap the Power icon, and then tap Restart.
Wait for the phone to reboot and test Face Unlock again.
Check Camera Permissions
Face Unlock needs full access to the front camera. If camera permissions are restricted, the feature may silently fail.
Open Settings, and then tap Apps.
Tap Camera, and then tap Permissions.
Make sure Camera access is allowed at all times.
Face Unlock on the OnePlus 15 usually starts working again once the settings are corrected or the face data is refreshed. After these fixes, unlocking your phone should feel quick and reliable again.
FAQs
Does Face Unlock work in the dark on the OnePlus 15?
Face Unlock works best in good lighting. In low light, the front camera may struggle, which can cause failed unlock attempts.
Is Face Unlock secure enough for payments on the OnePlus 15?
Face Unlock is designed for convenience, not maximum security. For payments and sensitive apps, fingerprint or PIN authentication is more reliable.
Why does Face Unlock work sometimes and fail other times?
Inconsistent lighting, camera obstruction, or changes in appearance can affect recognition. Updating face data and improving lighting usually stabilizes performance.
