OPPO Find X9 Pro: Fix Face Unlock Not Working with Simple Steps

Cleaning the Camera Sensor

• 🧼 Clean the front camera sensor with a microfiber or soft cloth to ensure it's free of smudges.
• 💡 Test Face Unlock after cleaning to see if the issue is resolved.

Re-registering Face Data

• ⚙️ Navigate to Settings → Security & privacy.
• 🔓 Select Device unlock and then Face and fingerprint unlock.
• 🗑️ Tap Delete face data and then Add face again.
• 📸 Position your face within the frame during the re-registration process.

Optimizing Face Recognition

• ☀️ Ensure good lighting during the face setup process, as this helps the camera detect your face more clearly.
• 📱 Since the phone doesn't have LiDAR like some iPhones, good lighting is crucial for accurate detection.

Software Updates

• ⬆️ Go to Settings → System and update → Software update.
• 🛠️ Install any pending software updates, as these may contain bug fixes for biometric issues.
• ✅ These steps can resolve most common face recognition problems.