When the fingerprint scanner on your OnePlus 15 stops recognizing your finger, unlocking your phone becomes slow and frustrating. Sometimes it fails completely, even after multiple attempts. This issue is usually caused by small setup problems, sensor interference, or software settings that need attention, and most of them are easy to fix.
Why Your OnePlus 15 Fingerprint Scanner Is Not Recognizing
- Your fingerprint data was registered poorly or is outdated.
- The fingerprint sensor is dirty or partially blocked.
- Screen protectors can interfere with fingerprint reading.
- Software glitches after a recent update.
- Fingerprint sensitivity settings are not optimized.
1. Clean the Fingerprint Sensor
The fingerprint sensor needs a clean surface to read your fingerprint accurately. Dirt, oil, or moisture can reduce its ability to detect your finger properly.
Use a clean, dry microfiber cloth, and gently wipe the fingerprint sensor area.
Make sure your finger is clean and dry, and then try unlocking the phone again.
2. Re register Your Fingerprint
Over time, fingerprints can change slightly, or the original scan may not have been captured well. Re registering your fingerprint allows the phone to relearn your finger more accurately.
Open Settings, and then tap Security and privacy.
Tap Fingerprint, remove the existing fingerprint, and add a new one carefully.
3. Enable Screen Protector Mode
Some screen protectors reduce the accuracy of the fingerprint scanner. Screen protector mode increases sensitivity to compensate for this.
Open Settings, and then tap Display.
Tap Screen protector mode, and turn the feature on.
4. Add the Same Finger Twice
Adding the same finger more than once improves recognition accuracy. This helps the phone detect your fingerprint from different angles and pressure levels.
Open Settings, and then tap Security and privacy.
Tap Fingerprint, and add the same finger again as a second entry.
5. Restart Your Phone
Temporary software glitches can cause the fingerprint scanner to stop working correctly. Restarting refreshes system services related to biometric authentication.
Swipe down from the top of the screen to open Quick Settings.
Tap the Power icon, and then tap Restart.
6. Check for Software Updates
Software updates often include bug fixes that improve fingerprint recognition. If your phone is running outdated software, the scanner may behave inconsistently.
Open Settings, and then tap System updates.
Check for updates, and install any available version.
Fingerprint issues on the OnePlus 15 are rarely hardware related. In most cases, improving fingerprint registration, cleaning the sensor, or adjusting display settings restores fast and reliable unlocking.
FAQs
Does a cracked screen affect fingerprint recognition on the OnePlus 15?
Yes. Cracks or damage near the sensor area can interfere with how the fingerprint is read, which may cause frequent recognition failures.
Why does my fingerprint work sometimes but fail other times?
Inconsistent pressure, dry fingers, or partial finger placement can cause mixed results. Re registering your fingerprint usually improves consistency.
Should I contact OnePlus support if nothing works?
If the fingerprint scanner still fails after all troubleshooting steps, contacting support is recommended, as the sensor may have a hardware defect.
