With the new technologies integrated into our mobile phones, we discover features worthy of science fiction films, such as, for example, unlocking your Samsung Galaxy S20 FE by fingerprint or, thanks to facial recognition. In this article we are going to help you and solve your fingerprint problems on Samsung Galaxy S20 FE. In this context, first we will learn how this technology works and how to configure it. Then, what are the different problems that you can encounter with the fingerprint screen unlocking, and, to conclude, the solutions.

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How does the fingerprint of my Samsung Galaxy S20 FE work?

Principle of use

The fingerprint sensor of your Samsung Galaxy S20 FE is in fact installed under the screen of it. A new technology that can only exist thanks to the new kind of Amoled / Oled screen which are much thinner than the old LCDs and therefore allow the fingerprint reader to be read through the screen. Although it is invisible, there is a sensor at a specific location under the screen, so you will have to position your finger on a specific area that you will find on the bottom part of your Samsung Galaxy S20 FE.
This sensor works like a scanner, it will emit light to analyze the butterfly folds of your finger. Then he will compare the data collected with the measurements he made when you previously recorded your fingerprint.

How do I use the fingerprint of my Samsung Galaxy S20 FE?

To use your fingerprint as a means of unlocking screens, applications or for mobile payments, you will need to configure a fingerprint on your Samsung Galaxy S20 FE. In this context, nothing could be simpler:

  • Go to the "Settings" of your phone
  • Click on the "Security" tab, then / or on certain versions of Android directly on "Lock screen"
  • Go to "Imprint"
  • Enter your screen lock code to access the settings
  • "Add an imprint"
  • All you have to do is follow the on-screen instructions (be careful not to press too hard)
  • Choose in the settings the options you want to assign to the fingerprint (screen unlock, mobile payment, etc.)

The different fingerprint problems on Samsung Galaxy S20 FE

We now move on to the part that probably interests you the most in which we will review the various problems that you may encounter with the fingerprint sensor of your Samsung Galaxy S20 FE

The fingerprint sensor of my Samsung Galaxy S20 FE is unresponsive

Sometimes it happens when you try to use your fingerprint sensor to unlock your Samsung Galaxy S20 FE or any other use that nothing happens. In this situation, we say that the sensor no longer responds . There must probably be a software problem. Your smartphone may actually display the message "The fingerprint sensor of your Samsung Galaxy S20 FE is not responding, please try later". Go directly to the next part of our article.

I cannot configure the touch unlock of my Samsung Galaxy S20 FE

If ever, despite having correctly configured your fingerprints in the settings of your Samsung Galaxy S20 FE, when you try to use it, it does not not recognize your fingerprint , probably there was a problem registering your fingers. We advise you to go to the solution of resetting the fingerprint sensor.

An error has occurred with the fingerprint sensor

Finally, if it happens that the fingerprint reader application " crashes  When you try to use it it's bound to be a software problem. There must be a bug in the application cache, or an update has altered its normal functioning, try the solutions that we offer below to correct this problem.

How to fix a fingerprint problem on Samsung Galaxy S20 FE?

Restart your Samsung Galaxy S20 FE

It may seem obvious, but it is one of the most effective solutions faced a good number of problems on Samsung Galaxy S20 FE. Start with this step before embarking on any in-depth investigation.

Check if the Samsung Galaxy S20 FE's fingerprint sensor is functional

First step, make sure that you are not the victim of a hardware problem. We therefore advise you to check a few points:

  • Make sure your screen is not broken or cracked
  • Please note that some screen protectors that are too thick or dark may interfere with the operation of the fingerprint sensor
  • If you have ever assigned other functions to your fingerprint than the screen unlocking, try them to verify that your reader is working correctly

If thanks to these checks you realize that your sensor is functional, go to the other solutions of this guideline. Otherwise, if your concern comes directly from the material, you will have to replace it, if it happens that your Samsung Galaxy S20 FE is under warranty, contact your operator or the manufacturer. Otherwise you will have to go to a shop specialist who can change the part for approximately 100-150 € . Namely that the part costs only twenty euros.

Reset the fingerprint sensor of your Samsung Galaxy S20 FE

Simple fix but which may be sufficient, we will delete the fingerprints saved on your Samsung Galaxy S20 FE to reset the sensor data and save it again:

  • Open the “Settings” of your Samsung Galaxy S20 FE
  • Go to "Security and Lock screen"
  • Delete all existing fingerprints
  • Re-register your fingerprints, do not hesitate to follow part one of this tutorial to discover the procedure

Register other fingerprints

If ever your finger does not work, you can always try to register other fingerprints, it will probably be less convenient to use but it will allow you to unlock your Samsung Galaxy S20 FE by fingerprint.

Format your Samsung Galaxy S20 FE

Finally, if despite all these solutions your sensor still does not work, we recommend that you format your Samsung Galaxy S20 FE and reset it to factory settings. It may sound drastic, but sometimes it is the most effective remedy for software problems. First of all, we recommend that you save all your important data such as your photos or music. To learn how to format your Samsung Galaxy S20 FE, we recommend that you follow our detailed tutorial on this procedure.

If you want a lot of tutorials to become the king of the Samsung Galaxy S20 FE, we invite you to consult the other tutorials in the category: Samsung Galaxy S20FE.