13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Fingerprint scanners on phones have evolved from capacitive scanners on the back to ultrasonic in-display scanners. Unlocking your phone with your fingerprint is secure and convenient. It can be frustrating when the fingerprint sensor is not working.

If you have an Android phone with a fingerprint scanner (rear-mounted, side-mounted, or in-display) that is not working, there are solutions to fix the problem. Here are a few ways to resolve the error with fingerprint hardware not available on your phone.

Why Is My Fingerprint Sensor Not Working

There are different types of fingerprint scanners on phones. The reason why your biometrics are not working could vary depending on the type of phone. It could be a software issue or your fingerprints not being registered properly.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Regardless of the cause, these solutions should help if your Android fingerprint scanner is not working. Follow each procedure carefully to resolve the issue.

How to Fix Fingerprint Scanner Not Working on Android Phones

Here are some solutions to fix the issue and reset the fingerprint reader performance on your Android phone.

This method may seem burdensome, but it is one of the simplest ways to get your fingerprint scanner functioning properly. Re-registering your fingerprints could revive your fingerprint scanner. Here’s how to do it:

1. Open the Settings app on your Android phone and select Biometrics and Security. The name of this option may vary on different Android phones.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 2: Tap on the Fingerprints option.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 3: Enter your PIN to access registered fingerprints. Step 4: Select a fingerprint and choose the Remove or Delete option. Repeat for all registered fingerprints.

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13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones 13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 5: Choose Add fingerprint option and register all your fingerprints one at a time.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

2. Make Sure Your Fingers Are Dry and Clean

Capacitive and optical fingerprint scanners cannot read wet or dirty fingers. That’s why the scanner can’t detect them. Wipe your fingers clean with a dry cloth or tissue, then use them to unlock your phone.

3. Clean the Fingerprint Scanner Surface

To ensure a clean fingerprint scanner, it’s important to keep your fingers clean and remove any dirt or grime. Use a microfiber cloth to gently rub the scanner’s surface.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

If your phone has an in-display fingerprint scanner, clean your display with Isopropyl alcohol and a microfiber cloth.

4. Remove Screen Protector for In-Display Fingerprint Scanners

In-display fingerprint scanners come in two main types: optical and ultrasonic. Optical scanners shine light through the glass to capture a fingerprint image, which is used to unlock your phone. These scanners typically don’t encounter many problems with screen protectors.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Ultrasound scanners reflect soundwaves off your finger to unlock the phone. These scanners can have issues with thick screen protectors. It’s a good idea to remove the screen protector and test if the scanner works. It is recommended to use the screen protector made by the smartphone’s manufacturer for the best compatibility.

A thick case may interfere with a side-mounted sensor, just as a screen protector can interfere with an under-display fingerprint scanner.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

If the case lips are too thick, your fingers may not touch the scanner surface entirely. This leads to frequent rejections and eventually, a non-functional fingerprint reader. Try removing the case and scanning your finger. We also suggest scanning your fingers again without the case.

6. Enable Increased Touch Sensitivity for In-Display Fingerprint Scanners

To use a screen protector on your phone and still get the in-display fingerprint scanner to work, increase the display’s touch sensitivity. Note that this option is usually found on Samsung and Google Pixel phones. Check your device’s Display settings for a similar option.

Step 1: Open the Settings app on your Android phone and go to Display.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 2: Scroll down and find the Touch Sensitivity option. Enable the toggle next to it.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

7. Add the Same Finger Twice

Some Android phones have a slow and inaccurate fingerprint scanner. To improve accuracy, you can try adding the same fingerprint twice. This is particularly important if your Pixel 7/6 fingerprint sensor is not working.

Step 1: Open the Settings app on your Android phone and select Biometrics and Security. The name of this option may vary depending on your phone, but it’s usually something like Lockscreen and Security.

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13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 2: Tap on the Fingerprints option.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 3: Enter your PIN. Access your registered fingerprints.

Step 4: Choose Add fingerprint option. Register a specific finger.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 5: Return to the previous menu and add another fingerprint. Add the same finger as in the last step.

8. Replace the Glass if Your Display Is Cracked

If your phone has an under-display fingerprint scanner and the display is shattered, the scanner may not work. Head to the service center and get your display replaced to use your fingerprint scanner again.

A good way to check if your phone has registered your fingerprint is by using the ‘Check added fingerprints’ option. This will tell you which fingerprints have been registered on your phone.

Step 1: Open the Settings app on your phone. Navigate to the ‘Security and privacy’ section. Then, scroll down and select Biometrics.

Step 2: Head to the Fingerprints section. Then, tap on ‘Check added fingerprints’.

Scan your fingerprint now and see if your phone detects it. If it doesn’t, it’s time to re-register your finger by following the first method.

10. Change the Unlock Method

The fingerprint scanner only works with a secure unlock method. If you use a simple swipe up to open, the fingerprint reader won’t work. To use the fingerprint scanner, change your unlock method to PIN, password, or pattern. Here’s how:

1. Open the Settings app and go to ‘Security & privacy’. Then, tap on Device lock.

2. Select the Screen lock setting and choose a secure option from the screen according to your preference.

11. Turn Off Face Unlock

Most phones nowadays have both fingerprint scanning and face unlock. Depending on your preference, you may have enabled face unlock for convenience. In that case, your fingerprint scanner may not work as expected. Try turning off face unlock and only use the fingerprint scanner to unlock your phone.

Step 1: Open the Settings app and go to ‘Security & privacy’. Tap on Device lock.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones 13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 2: Select the Screen lock setting and disable face unlock if enabled.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones 13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

12. Update Your Phone to the Latest Software Version

All hardware components on your phone, including the fingerprint scanner, are controlled by software. If there’s an issue with your phone’s software or bugs, it can affect the fingerprint scanner’s performance. Check for an available update and install it.

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Step 1: Open the Settings app on your Android phone and select Software Update.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 2: Wait for your phone to check and download any updates. If an update is available, tap Install and wait for completion.

If none of these solutions work, resetting your phone to factory settings is your last resort. Make a complete backup of your Android phone before proceeding, as this will erase all the data. Open the Setting app on your Android phone. Since the Reset option is present in different places on all phones, it’s best to use the search bar to locate it. Tap on it and type Reset.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 2: Select Factory data reset from the results.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

Step 3: Tap Reset to begin the process. Enter the PIN or password when prompted to let your phone commence the process.

13 Best Ways to Fix Fingerprint Sensor Not Working on Android Phones

FAQs for Fingerprint Sensor Not Working on Android Phones

1. Do ultrasonic fingerprint scanners work with wet fingers?

Yes, ultrasonic fingerprint scanners work with wet or dirty fingers. However, it’s recommended to use dry and clean fingers when unlocking your phone.

2. How many fingerprints can I register on an Android phone?

It depends on the phone. Generally, you can register 4-5 fingers.

3. What is the average mobile fingerprint scanner cost?

The cost varies depending on the type of fingerprint reader. Under-display scanners are generally more expensive than rear or side-mounted ones. It’s best to check with your service center regarding the cost of the sensor.

Scan Your Fingerprint and Unlock Your Phone

Following these steps should resolve any issues with a non-functional fingerprint sensor. Once restored, you can use your scanned fingerprints to conveniently unlock your Android phone, eliminating the need for a PIN.

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