Protecting data on your smartphone is a must. Moreover, there are not so many truly safe ways to implement the function necessary for all gadgets. In most devices, this is either a fingerprint sensor or a face scanner. The latter is usually installed by many manufacturers in bad faith, who only use a smartphone camera for implementation, which means that your safety is again at risk. Often users are faced with the fact that the scanner stops working. Today I propose to understand the most popular reasons and discuss ways to solve them.
Fingerprint not working? There is a solution.
Personally, I like the fingerprint sensor more than the face scanner. Firstly, it is banally safer, and secondly, the masks that we wear now all the time make the use of biometrics a real nightmare. What was my indignation when the fingerprint sensor stopped working on the device.
Contents
Why the fingerprint sensor does not work
There are a lot of reasons why the sensor can fail. The most common are the following:
- Damage to the button sensor loop during self-opening of the device or after severe mechanical damage.
- Failure in the smartphone software.
- The surface of the scanner is heavily soiled.
- Change in the pattern of a fingerprint in case of damage to the skin, its coarsening.
- A screen protector or glass that prevents your finger from contacting the screen.
Moreover, the user does not always have an urgent need to carry the phone to the service center. I will say more, most often it is enough to carry out a few simple manipulations, as everything immediately falls into place.
In-screen fingerprint scanner
It seems that everything is clear. However, I would like to touch upon the ultrasonic fingerprint scanners that are located in the device’s screen in more detail. In his article, a colleague described in detail the mechanism of work and talked about all the nuances. In short, unlike optical and capacitive scanners, the new solution is based on ultrasound.
An ultrasound scanner is convenient, but not always.
It is important to note that sound waves are beyond the capabilities of human hearing. We do not hear them at all, but with the help of them the device has the ability to build a detailed picture of a person’s finger drawing.
Many corporations have been introducing such technology for several years already, and the quality of the sensor does not deteriorate in any way, however, some companies indicate in advance that when the protective glass is glued, the sensor’s performance may drop.
On the network, there are negative reviews from some buyers who complain about a decrease in the sensitivity of the sensor:
I don’t know if this will be useful for you or not! All in all! This is the point! I scanned my finger – it works with lightning speed! Then I buy, I glue the protective glass on the scanner screen, and sometimes I did not recognize my finger, and the triggering slowed down! What I’ve done?!
At the same time, the user quickly found a solution to the problem and shared it with others. If you notice that the print started to work poorly after gluing the glass, you should:
- Unlock your smartphone with a passcode.
- Go to Settings, Passwords & Security.
- Go to Fingerprint Unlock.
- Enter your phone password for verification.
- Select the added footprint and then check Delete.
- We carry out a similar action with the rest of the scans if you have several of them.
- Next, we just add the print again.
Only if this method did not work and the biometrics still works poorly, you should peel off the glass and solve the issue in other ways.
Take your time to peel off the protective glass. Perhaps you can do without it.
But if the user was more attentive, he would notice that the company, whose smartphone he uses, specifically gives comments on this matter. Here is what Xiaomi writes on its website:
Using a screen protector or screen protector can seriously affect unlocking your device using the in-display fingerprint reader.
Fingerprint sensor does not work on Samsung
Samsung is a little more complicated. Many owners of Galaxy S smartphones complained about malfunctions during operation. At first, the company did have some problems. The Korean company has repeatedly noted that the film should not affect the operation of the technology in any way.
Samsung smartphone users complain about the fingerprint sensor.
Nevertheless, the network periodically meets indignant. Having talked with users in our Telegram chat, together we came to the conclusion that it is difficult to find a better solution than buying good quality glass.
Here I can recommend you the Telegram channel Chest Ali Baba . The guys publish only verified products that they tested themselves, so there can be no problems.
Why fingerprint doesn’t work
Other reasons will be easy to figure out. First, try wiping the scanner area with a special cleaner to get rid of the dirt. Then unlock your smartphone again. If it does not help, perhaps the reason is not the smartphone, try using the scanner with other fingers.
Sometimes just wiping it down with a cloth is enough for the scanner to work properly.
Next, check your smartphone for system updates. Perhaps you missed a major update and it crashed. If the phone starts to lag after installing updates, try a factory reset . Just remember to create a backup to avoid losing important data. If this does not help, then it’s time to go to the service.
Have you encountered problems with the fingerprint? How did you solve the problem?