How To Fix OnePlus 8 Fingerprint Sensor Not Working? [8 Proven Fixes]

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Muhammad Tayyab


The fingerprint is the fastest and most secure method to access your phone. The authentication process is faster than other PIN/Password or pattern methods. All you have to do is place your registered finger in the right position to get over the authentication process successfully.

If you are unable to proceed with a fingerprint sensor authentication process on your smartphone, then there is a high chance your registered finger might be dirtier or the fingerprint sensor area on the screen might be covered by stains.

Here, we will be explaining some proven fixes that will lead you to resolve the fingerprint sensor not working issue on your smartphone.

Quick Fixes

You should boot your OnePlus 8 into Safe mode. If the fingerprint sensor starts working in safe mode, then there are some third-party apps causing the issue. In this particular case, you should delete all the recently installed third-party apps and see if the fingerprint sensor starts working on your OnePlus 8.

To enter Safe mode, press and hold the “Power and Volume Up” buttons until the power options appears on the screen. Now, press and hold the “Power OFF” option until the “Reboot to Safe mode” appears on the screen. Tap “OK” to confirm. Also, make sure that the “Airplane mode” is turned OFF in the Safe mode.

OnePlus 8 Fingerprint Sensor Not Working

If the fingerprint sensor on your OnePlus 8 is not working properly, then you need to start the troubleshooting process. In this guide, we have shared some of the proven fixes that could eliminate fingerprint sensor issues on your smartphone.

  1. Soft Reset
  2. Check if the Screen is Clean
  3. Register with Multiple Fingers
  4. Enable the FingerPrint Always ON Option
  5. Remove the Screen Protector
  6. Clear System Cache
  7. Check For the Recent Software Update
  8. Perform Factory Data Reset

Soft Reset

Sometimes, a minor glitch in the device software happens to cause such an issue. These types of minor problems can be very well eliminated by performing a soft reset on your device.

To do that, there are very simple steps to follow below:

  • Simultaneously, press and hold the “Power” and “Volume UP” buttons.
  • Now, wait for a moment until your phone turns OFF completely.
  • Once the phone is turned OFF, now turn it ON by pressing and holding the “Power” button.
  • Wait for a while and your smartphone will boot up in a few minutes.
soft reset (power off)

That’s it, you have successfully performed a soft reset on your OnePlus 8.

Check if the Screen is Clean

Most of the time, the fingerprint sensor malfunctions due to strains on the screen. Hence, make sure that the screen is clean. Wipe the screen with tissue paper or a small piece of cloth to clean it properly, especially the area where the fingerprint sensor is located under the display.

Besides this, also clean your registered finger if it is dirty somehow. The dirty finger might also become an obstacle in the authentication process.


Register with Multiple Fingers

When activating the fingerprint ID on your smartphone, you should register with multiple fingers as this might allow you to get the benefit of an alternate finger when the authentication process fails with a particular finger.

  • Open the “Settings” and then tap “Security & Lockscreen”.
  • Further, tap “Fingerprint Unlock”.
  • After that, tap “Add Fingerprint” and follow the on-screen instructions to complete the scanning process.
  • Finally, tap “Add Another” to add multiple Fingerprints.

Enable the FingerPrint Always ON Option

This option will lead you to place the finger at the exact position of the fingerprint sensor under the display. If this option is disabled, then you might face difficulty in correctly placing your finger at the exact position and hence will result in a failed authentication attempt.

Therefore, It is recommended to enable the “Fingerprint Always ON” option on the display.

Here is how you can do that,

  • Head over to “Settings”.
  • Next, tap on “Security and Lockscreen”.
  • Further, tap “Fingerprint”.
  • Now, you will be able to see multiple options here “Pick up your phone to show” and “Tap the screen to show”.
  • Finally, enable both of these options.

Remove the Screen Protector

Remove the protector from the screen and then try to attempt fingerprint authentication. There is also a possibility that the protector might be preventing the fingerprint sensor from sensing the finger accurately.

This happens in the case of incompatible screen protectors such as universal protectors. Hence, the fingerprint sensor is unable to make it with successful authentication.

remove the screen protector

It is recommended to use a compatible screen protector that is specifically designed for a particular model. In this case, you should use the screen protector designed for the OnePlus 8 might eliminate the incompatibility issues and will lead you to the authentication process without any hurdles.

Clear System Cache

Another fix that can lead you to eliminate this particular issue is by booting into the recovery mode of your smartphone.

By doing so, you will then be able to wipe the cache partition. This method removes all the temporary files that might be causing issues to your device.

Steps To Follow below:

  • Switch OFF your smartphone.
  • To enter into recovery mode, press and hold the Power and Volume UP or Power and Volume Down buttons until you boot into recovery mode successfully.
  • Once in recovery mode, use the volume buttons to switch between different options and the power button to confirm the desired option.
  • In recovery mode options, select the “Wipe Cache Partition” option.
  • When you are done with it, now reboot your phone by selecting the “Reboot the System Now” option.
how to wipe cache partition

That’s it, you are done with clearing the system cache. Once your smartphone boots up successfully, then check whether the fingerprint sensor is working fine or still the problem persists.

Check For the Recent Software Update

Most of the problems occur due to an outdated version of software running on the device. Hence, you need to check for the latest update and if available, then download and install it on your smartphone.

How To Update Software of smartphone
  • Head over to “Settings”.
  • Next, tap “Systems”.
  • Scroll down to the bottom and tap “System Updates”.

If any recent version of the update is available, then download and install it on your OnePlus 8.

Perform Factory Data Reset

This method is very effective and worth considering when facing any kind of issue on your device. This will restore all the settings to the factory default settings.

But you need to take a complete backup of your important data as it will wipe all the available data on your device.

How To Perform Factory Data Reset

Here are the steps below:

  • Head over to “Settings” on your smartphone.
  • Next, tap “Systems”.
  • Scroll down to the bottom and you will see the “Reset” option. Just tap on it.
  • Here, you will see various reset options.
  • Tap on the one labeled “Erase all data (factory reset)”.
  • Now, also select the “Erase internal storage” option by tapping the toggle button.
  • Finally, tap the “Erase All Data” button at the bottom.

Wait for the process to complete, once it finishes, the phone will boot up and will be directed to the Welcome screen. Now, set up your phone accordingly by following the on-screen instructions.

Related: How To Fix NFC Not Working on OnePlus 8?


Are you having issues with the fingerprint sensor on your OnePlus 8? If yes, follow this troubleshooting process that includes multiple fixes. Some of them are as follows:

  • Soft Reset your smartphone.
  • Remove the screen protector.
  • Clear System Cache.
  • Update Software.

For more fixes, follow this detailed guide that will help you resolve this particular issue regarding the fingerprint sensor.

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