Not all phones come with an inbuilt app lock system. For example, Google Pixel 4a doesn’t have an inbuilt app lock system. In this case, you have to use a third-party application to secure your apps from unauthorized access. The Norton App Lock application is one of the best apps for Android that provide protection for the applications installed on your phone. It offers features like lock apps, custom PIN, password or pattern lock screen, etc. The best thing about this app locker is that it works with Android OS 4.1 or later. So, the chance for an error occurrence in this app is very low. However, there are some issues encountered by the users.This page explains how to fix the Norton app lock fingerprint issue. This issue can happen after upgrading your phone OS; for example, after upgrading the Android OS from 8 (Oreo) to 9 (pie).
In this case, try the following troubleshooting instructions to fix it.
- Basically, while performing the OS upgrade, there is a chance for data loss. If your phone’s fingerprint data is restored during the upgrade process, then you have to re-register it. After re-registering the fingerprint settings, check if the app lock fingerprint feature is working.
- Before re-registering the fingerprint, make sure that you have restarted your phone.
- If the re-register process doesn’t fix the issue, then change the App Lock PIN.
- After changing the PIN, check if the Norton app lock fingerprint is working. If not, reinstall the Norton App Lock application on your smartphone,
- To do so, uninstall the Norton App Lock application from your smartphone. Make sure that the app’s cache and data are also cleared. After uninstalling the app, restart the Android phone.
- Now, from the Google Play Store, install the Norton app lock.
- After reinstalling the app, configure the App lock fingerprint settings and check whether it is working.
- If not, try the next solution given below.
- Check whether the Battery optimization option is enabled on your phone. If yes, disable it, and then use the Norton app lock fingerprint feature.
If the Norton app lock’s fingerprint is not working even after performing the above instructions, then the problem is with the device that you’re using because the Norton app works with Android 4.1 or later. So, there is no chance for an error to occur on Android OS 9 or later. To know more about how to fix the Norton app lock fingerprint not working issue, contact us.