Unless we are talking about an entry-level mobile, all the current mid and high range on Android, have a fingerprint sensor as the most important method of unlocking. Realme mobiles also make use of this technology, either on the back or through on-screen sensors. However, the fingerprint reader can fail at any time.
Any piece of hardware is susceptible to failure at any given time. On our site we often tell you many times of different problems, but luckily in most cases the solutions are at our fingertips. The same happens with Realme mobiles and the fingerprint sensor, which can fail without prior notice and without us finding an apparent cause.
Test the mobile
Realme mobiles updated or that have been launched with RealmeUI, have a Security Center to detect possible hardware or software problems. The application can be found with the rest of the system’s apps and allows testing of many points including the fingerprint sensor . To be able to test this section, we must uncheck all the others (or leave them in case of taking advantage to do a complete test)
Once done, we will click on “Start check”. The system will take a few minutes and at the moment we will be able to know if there is a problem with the fingerprint sensor. If so, the system will offer us the appropriate rabbits to solve them.
Register the fingerprint again
This is the best way to troubleshoot irregular fingerprint detection or detection. The ideal is to erase all the tracks that we have registered and start over. To do this, click on the trash can icon in the registered fingerprints and once done, click on “Add a fingerprint” and re-register our fingerprint.
Register a finger more times
This is a trick to offer maximum precision in finger unlocking. It involves registering the same finger at least twice. In this way the system will detect our fingerprint more times, being able to register parts that it did not do in the first pass and thus being more precise.
Clean the sensor
Dirt is one of the main reasons for fingerprint sensor failures. Over time and after using the mobile with dirty hands, it can cause a thin film of fat to be generated between the sensor and our finger, which prevents the correct reading. This can cause problems and lead us to think that it is a sensor failure. Although our realme has a fingerprint sensor on the screen or on the back, it is enough to wipe with a dry cloth from time to time to remove dirt and make its effectiveness back to what it was before.
An app is the culprit
If problems have started to happen suspiciously after installing an app, it may be using some of the granted permissions to cause sensor problems. In this case we will have to uninstall some of those non-essential and recently installed apps, to see if the problem disappears.
At factory values
When all of the above does not work, it is best to return the device to factory settings, in order to delete all the settings and downloaded data and thus try to get the fingerprint sensor to work correctly again. To carry out this step we will have to click on Settings / Backup and then on “Factory data reset”. Depending on the version of ColorOS or RealmeUI, this option may be under Storage / Backup and Restore. The process will last a few minutes and the mobile will turn on again, with the fingerprint sensor responding again.
Hardware problem
If even with those, the fingerprint sensor works again, it is possible that we are facing a hardware problem caused by a blow or internal failure , which requires the assistance of a professional technician.
Other tips for use
If we have already solved the problems with the fingerprint sensor, the following tips for use should be taken into account, which will prevent future problems or allow us to find other causes in the event of new failures.
- Check the fingerprint identification area and the finger to see if there are stains or water marks or foreign matter such as dust, hair etc …
- Make sure that our finger completely covers the fingerprint detection area.
- Verify that we use the same finger and type of action as when the fingerprint was registered.
- Check the fingerprint area for scratches.
- Verify that the screen shows the fingerprint icon before unlocking (for screen unlock)
