If Face Unlock on your vivo S50 suddenly stops recognizing you, unlocking your phone becomes slower and frustrating. Sometimes it does not respond at all, even when you are looking directly at the screen. The issue is usually related to lighting, camera obstruction, or incorrect settings, and you can fix it with a few simple adjustments.
Why Your vivo S50 Face Unlock Is Not Working
- Poor lighting conditions affecting the front camera.
- Face data not registered properly.
- Screen protector blocking the camera area.
- Face Unlock disabled after a software update.
- Temporary system glitch causing recognition failure.
Check If Face Unlock Is Enabled
Face Unlock must be enabled in the security settings before it works. If it was turned off accidentally, your phone will rely only on PIN, pattern, or fingerprint.
Open Settings, and then tap Security.
Tap Face recognition, and then make sure Face Unlock is turned on.
If it is off, enable it and test the feature again.
Improve Lighting Conditions
Face recognition depends heavily on proper lighting. If you are in a dark room or standing against bright backlight, the camera may struggle to detect your facial features.
Move to a well-lit area, and then wake your phone.
Hold the device at eye level, and make sure your full face is visible.
Avoid covering your forehead or chin while testing.
Remove or Check Screen Protector
Some thick or misaligned screen protectors partially cover the front camera. This reduces the camera’s ability to scan your face correctly.
Inspect the top portion of the display, and check if the camera cutout is blocked.
Clean the front camera gently with a soft cloth, and remove any dirt or smudges.
If needed, adjust or replace the screen protector.
Re-register Your Face Data
If your face data was captured in poor lighting or from an odd angle, recognition may fail repeatedly. Re-registering your face allows the system to scan you more accurately.
Open Settings, and then tap Security.
Tap Face recognition, and then delete your existing face data.
Tap Add face, and follow the on-screen instructions in a bright environment.
Restart Your Phone
Temporary glitches can interfere with biometric features. A restart refreshes system services and often restores normal function.
Press and hold the Power button, and then tap Restart.
Wait for the device to boot up, and test Face Unlock again.
Make sure your face is clearly visible when unlocking.
Update Your Software
Sometimes Face Unlock issues are caused by minor bugs that get fixed in updates. Keeping your vivo S50 updated ensures you have the latest performance improvements.
Open Settings, and then tap System update.
Check for available updates, and install any pending version.
Restart the device after updating.
Face Unlock on the vivo S50 works reliably when lighting is good and your face data is properly registered. Once you adjust the settings or re-scan your face, the feature should unlock your phone smoothly again.
FAQs
Does Face Unlock work in the dark on vivo S50?
Face Unlock may struggle in very dark environments because it relies on the front camera. Increasing screen brightness or moving to better lighting improves accuracy.
Why does Face Unlock fail after wearing glasses?
Large changes in appearance, such as glasses or hats, can affect recognition. Re-registering your face while wearing glasses can improve performance.
Is Face Unlock secure on vivo S50?
Face Unlock is convenient, but it is generally less secure than fingerprint or PIN authentication. For higher security, use Face Unlock together with another lock method.
