Phone fingerprint not working. What to do if the fingerprint does not work on Xiaomi

Touch ID is a unique fingerprint reader technology. It is equipped with such versions of mobile gadgets from Apple as iPhone 5s, iPhone 6 and iPhone 6 Plus. According to the manufacturer, this technology is more advanced in the models of the sixth line. However, on the forums, many users often complain that Touch ID is a rather poorly functioning element in both the first and second versions.

The idea behind Touch ID is certainly a good one. And not only in terms of marketing, but also for practical use. With the help of Touch ID, the owner of an iPhone can unlock his device, enter the "accounts" of some programs on the network, and make payments using Apple Pay. But this is in the event that the technology functions smoothly, which is far from always the case. As in any electronic mechanism, Touch ID sometimes also has problems. How to deal with them? Let's figure it out.

Firstly, if problems were discovered after a recent firmware update to version 9 (or more recent) iOS versions), you may need to downgrade. This term refers to the rollback of the system to old version. But if the problems are not so significant, best solution will wait for the next update.

All other problems are often caused by misunderstandings that do not imply anything serious. Therefore, the user can solve most of them on his own, without contacting a repair shop. Moreover, there are not so many such problems, and the ways to solve them have long been known. In this article, we will look at each problem and how to solve it in detail.

It often happens that the fingerprint does not work on the iPhone 6 or iPhone 5S. If the system fails, experts recommend doing a simple reconfiguration. In other words, you need to re-train the gadget to recognize the fingerprint. When the first scanners appeared, Apple took care of the annual software update for them. This is done so that the devices remember the fingers of their owners as best as possible.

Significant optimization in this area was carried out in the "OS" of the eighth version. But as the practical experience of many users has shown, if the print is not regularly refreshed, after about a month Touch ID will start to fail. The reasons for this are usually the most banal, but basically they are cosmetic in nature (the print is worn out, dry skin of the finger, and similar misunderstandings).

Given the above, with Touch ID glitches on the iPhone 5S, you need to update the fingerprint in the gadget's memory. But before the procedure, it is necessary to wipe the display surface well and wash your hands. Then you should go to the iPhone settings, and after that - to the Touch ID password section. In this case, an earlier print must be deleted through a swipe, moving across the display from the right side to the left. After this action, you need to click on the button for adding a fingerprint and again carry out the usual operation to enter a fingerprint, in accordance with the instructions.

Touch ID doesn't work in the App Store

This, like the previous described problem, occurs quite often. And this usually happens due to the fact that the scanner does not interact with App Store. As before, the reason most often lies in cosmetic factors. But sometimes the problem occurs due to iPhone 5S software malfunctions. Many users note that gadgets based on the "OS" of the eighth version, or rather, the Touch ID technology in them, do not work in this store.

To resolve this issue, follow these steps:

  • Click on the settings section, and then on the item Touch ID and password.
  • Go to the technology usage section and disable the App Store.
  • Reboot the device system.
  • Return to original settings, enable the App Store.

After all the actions performed, the Touch ID bug in the store should be removed automatically. Let us also remind you that if the user has not made purchases in the store during the day, the system will ask for a password when entering it again.

Fingerprint scanner doesn't work at all

It happens that the scanner itself fails, that is, it simply breaks. Although this happens very rarely.

The complete inoperability of the technology after the update can signal a breakdown. In that case, you can try " hard reset”, having done the backup procedure before that.

But if it's a problem with the iPhone 5S software, a hard reset usually solves the problem 100%. Otherwise, the user will have to turn to repair, since it is impossible to do without a competent diagnosis of the device.


Touch ID stops working at low temperatures

According to statistics, glitches in the operation of technology in winter or in cold conditions happen much more often. As always, the explanation for this phenomenon is simple. It's all about the changes in the papillary pattern of the fingers, which changes with changing weather conditions. Of course, it is not possible to determine such changes by eye. But smart Touch ID immediately detects them and crashes.

As you might have guessed, this whole thing is also treated by updating the imprint. But here you can make everything even easier. It is enough to execute and save your "winter" imprint in the device's memory. To do this, you need to do the procedure as soon as you come from the street, and your fingers are still cold. Although, this is not a guarantee of a successful solution to the problem. According to iPhone owners, the above methods do not always cope with the situation.

If the scanner does not work in muddy or damp conditions

There is no need to go into lengthy explanations here. Obviously, moisture and dirt prevent the system from scanning the fingerprint. We are talking about the presence of dirt or moisture not only on the finger itself, but also on the surface of the scanner. Therefore, before the operation, you need to wash and dry your hands well and carefully wipe the scanner with a dry cloth.

But one important point should be remembered: you do not need to keep your hands in water for a long time when washing, as this will swell the skin and the papillary pattern will change dramatically.

However, Apple guarantees fans of its products that in the new gadgets of the sixth line marked S, Touch ID works more efficiently with wet surfaces. But at the same time, developers still do not recommend using the scanner when your hands are wet.


Breakdowns after repair: causes

talking in simple terms, in the process of repairing the device, the cable between Touch ID and the telephone board may be damaged. This leads to the fact that the system is no longer able to determine the authenticity of the fingerprint. And after that, the gadget deactivates the biometric sensor. In such a situation, the replacement of individual elements in order to improve the operation of the technology is impossible. The IDs between the Secure Enclave and the third party sensor simply won't match.

If the cable is completely damaged, then its restoration is an impossible task. The fact is that it includes ten tracks, consisting of several layers. And the thickness of each track is a tenth of a millimeter.

The situation is different with the elements of the Home button that regulate the process of registering a click. Replacement is a simple matter. However, unlocking the device from now on will be available exclusively through a password. It is easy to identify a broken Touch ID through the settings. To do this, you need to carefully consider the menu for adding new fingerprints. It should be gray if there are any faults.

The only way to get a properly functioning sensor based on fingerprint technology is to use elements of another device. This means that you will need to install a new board and a Home button. However, this repair will be very expensive for the user. It is advisable in such a situation to purchase new iphone. Of course, if Touch ID technology is very important for the user.

Touch ID - this is the official name of the fingerprint reader that is equipped with iPhone smartphones 5s, iPhone 6 and iPhone 6 Plus, and iPad tablets mini 3, iPad mini 4, iPad Air 2 and iPad Pro. Apple claims that iPhone models 6s and iPhone 6s Plus installed Touch ID more new version, and on the forums, users claim that Touch ID often does not work, both “old” and new.

Touch ID is a useful solution, of course, not only from a marketing point of view, but also from a purely practical one.

Users can use it to unlock their iPhones and iPads, log into accounts in various online services, and even pay for purchases using Apple Pay.

But only if Touch ID is working properly. But, unfortunately, like any other electronics, this one is also sometimes capricious. Therefore, let's find out.

To begin with, we note that if problems with Touch ID started on your Apple device after a recent update to iOS 9 and / or even newer versions of it, then most likely you may need to downgrade (i.e. roll back the system to previous version), or, if the problems are not so critical, then it is better to wait for the next update.

With other fingerprint scanner problems in iPhones from 5s and newer, as well as in iPads mini 3, mini 4, Pro and Air 2, you can try to figure it out, so to speak, on your own and even at home. Fortunately, there are not very many such problems, and ways to eliminate them are already known. So if:

Touch ID Not Working - Crash

If Touch ID fails, then a simple reconfiguration is recommended to deal with this trouble. In other words, you need to re-teach your iPhone (or iPad) to recognize your fingerprint. Since the advent of scanners, Apple has regularly updated their software so that smartphones and tablets of users remember the “fingers” of their owners longer and better.

Radical optimization seems to have been carried out back in iOS 8, but, as practice shows, if you do not refresh the print, then over time (from a month or longer), Touch ID fails one way or another, but it happens. The reasons can be very different, but, as a rule, they are purely cosmetic in nature: slight “wear and tear” of the print itself, dry skin of the finger, etc.

Therefore, if Touch ID suddenly fails, then first update the fingerprint in the memory of your smartphone or tablet. But first, you should gently wipe the surface of the scanner and wash your hands. Next we go to Settings ", then - in" Touch ID and password ". We delete old prints with a swipe across the screen from right to left. After that, tap " Add fingerprint ”and again carry out the standard procedure for entering a fingerprint according to the instructions.

Touch ID not working in App Store

This is also a notable problem. Most often, the reason that the scanner stops working with the App Store is also a cosmetic factor, but often the problem is due to software failures. Some users complain that with iOS 8.3, Touch ID is simply not displayed in the App Store.

In such and similar cases, do the following:

  • click " Settings » -> « Touch ID and password «;
  • In chapter " Using Touch ID » turn off « App Store, iTunes Store «;
  • reboot iPhone (or iPad);
  • back again to "Settings" -> "Touch ID and password" and include " App Store, iTunes Store «.

After that, the Touch ID bug in the App Store should fix itself. We also remind you that if you have not bought anything in the App Store within 24 hours, then the system will require a password at the entrance.

Touch ID not working at all

Of course, the possibility that the fingerprint scanner is out of order also exists. Although users rarely complain about such breakdowns. If, after updating the fingerprint, Touch ID did not work properly, then you can try a “hard reset” by creating a backup first. If the problem is software in nature, then a hard reset should fix it. Otherwise, you must visit service center, since it is unlikely that it will be possible to do without qualified diagnostics.

Touch ID does not work in winter or cold

Statistics show that at low temperatures, the fingerprint scanner in the iPhone and iPad fails more often. The problem, again, in most cases has a simple explanation. The fact is that in cold weather, the papillary pattern of the fingers changes. It's hard to see these changes with the naked eye, but Touch ID notices them and starts to fail. As you probably already guessed, the trouble is also treated by updating the fingerprint. But you can do it even easier and enter a special “winter” imprint into the device’s memory, i.e. scan the finger pattern immediately from the cold. True, they say that both methods only partially solve the problem, but it’s still worth trying.

Touch ID doesn't work when it's dirty or wet

Well, there is not much to explain here. It is clear that moisture or dirt (whether on the skin of the finger or on the surface of the scanner) is very effective in preventing any fingerprint from being scanned. Therefore, if there are excess substances of a wet and/or dirty look on it, it is better to wipe the scanner with a dry, clean cloth. And the finger must be washed (you can even with your hands). However, you should not overdo it with water, because if you keep your hands in water for a long time, then the fingertips will wrinkle and the papillary pattern will change for a while. Apple claims that new iPhones 6s and iPhone 6s Plus Touch ID works better with wet skin, but the manufacturer still does not recommend using the scanner with wet hands.

If you encounter a problem that prevents Touch ID from working on your iPhone, this can lead to serious consequences, up to the point that the smartphone stops turning on. After all, the Touch ID function is responsible for the ability to unlock the device by scanning a fingerprint. It is designed to protect the iPhone from unauthorized access, but as a result of a breakdown, the smartphone may stop responding to your finger touches or recognize the fingerprint.


To fix the problem, you can enter the password yourself and reconfigure the Touch ID scanner on iPhone. If this does not help, your smartphone will most likely need professional repair.

What problems can occur in the iPhone scanner

For the first time, the Touch ID fingerprint scanner was built into the iPhone 5S. Since then, the technology to unlock your device with your fingerprint has been greatly improved. However, the incorrect operation of the Touch ID fingerprint scanner can still be manifested by several “symptoms” at once:

  • Fingerprint scanner doesn't recognize your finger
  • the fingerprint sensor settings are off
  • Touch ID not working at all
  • Can't use apps that support Touch ID

The reasons for the incorrect operation of the iPhone fingerprint recognition sensor can be varied - from touching the sensor with wet hands to breakage of the button cable, other mechanical damage and system failures in the iPhone.

What are the main causes of such problems

If you bought a new original iPhone, but the Touch ID button does not work, there may be several reasons for this. Most often, smartphone owners face the following problems:

  • fingerprint recognition failure due to pressing the button with wet fingers
  • the appearance of cuts, abrasions and other marks that affect the fingerprint
  • Touch ID system settings failure
  • iPhone cable button failure
  • other mechanical damage to the smartphone, due to which it is impossible to enter the password
  • iPhone system crash

All this can lead to the fact that the fingerprint recognition button does not work, the phone cannot be unlocked, it has stopped turning on, etc.

In addition, if Touch ID does not work on a newly purchased iPhone 5S or a smartphone of a different model, this may signal that you have been sold a refurbished gadget at a reduced price. You can certainly use such a device, but without professional repair fingerprint sensor, Touch ID cannot be restored.


What problems can you deal with on your own?

If you are faced with the fact that the Touch ID fingerprint recognition system has stopped turning on, it is impossible to unlock the device, etc., you can try to find a solution to the problem yourself. Try restarting your smartphone by pressing the power button and the home button. If that doesn't help, recalibrate Touch ID:

  • go to the menu "Settings - Touch - password"
  • enter a password that will allow you to unlock your Apple device
  • reset your phone's fingerprints
  • rescan the fingerprint to replace them
  • save the settings and check if the sensor is working now

If entering the password and calibrating did not help, try flashing your smartphone through iTunes to return the device that did not work to factory settings. This can be a solution to the problem and will help to avoid re-entering the password, replacing the Touch ID buttons and cable, as well as other major repairs.

What to do if the measures taken did not help

If you repeatedly entered the password, rebooted the device with the “Home” button, calibrated the Touch ID sensor, but your smartphone still does not function properly, Touch ID does not work on the iPhone, the device stops turning on at all, you cannot do without professional repair. You can contact any service center or entrust the device to a private YouDo professional, which has a number of advantages:

  • no queues and no waiting for button replacement
  • Availability original spare parts for replacement
  • reduced cost of services due to the absence of intermediaries
  • convenient ways to order and pay for services

Yudu performers work around the clock. They will quickly and inexpensively produce the necessary

With the release of the iPhone 5s, Apple offered users an alternative method of unlocking smartphones and protecting important data - a fingerprint scanner. Since then, the fingerprint reader has been used in all mobile gadgets of the California corporation, and has become one of the factors for abandoning the familiar "Slide to unlock" gesture.

Despite the fact that Apple engineers are constantly improving existing solutions sometimes they fail. For example, the Touch ID fingerprint scanner may refuse to read the data of the owner of the smartphone. To get Touch ID to recognize your fingerprint correctly again iPhone owner, you need to do a few simple manipulations.

Enable unlock when Touch assistance ID in settings

Before you start looking for the cause of the Touch ID malfunction, you need to make sure that fingerprint recognition is enabled. To do this, go to Settings - General - Touch ID and password and check if the ability to unlock the iPhone with a fingerprint is activated. To be sure, you can disable and re-enable this option by moving the toggle switch.

Clear Scanner

If the fingerprint unlock feature is enabled but the scanner is not responding, you can start troubleshooting and troubleshooting. The first step is to thoroughly clean the Touch ID scanner. Perhaps dust or other dirt has accumulated on it, particles of which prevent normal fingerprint recognition.

Refresh operating system to the current version

Apple releases a major iOS update and macOS once a year. Throughout the year, minor updates appear that fix minor bugs in the software and hardware devices. It is possible that the Touch ID fingerprint scanner does not work correctly due to outdated firmware. To update it you need to go to Settings - General - Software Update.

Correct finger placement

Sometimes the reason for incorrect operation of the Touch ID scanner is the wrong position of the finger. You need to make sure that your finger completely covers the fingerprint scanner, that you do not remove your finger too quickly, and that the system has enough time to scan.

Adding more fingerprints

Apple has provided the ability to add five different fingerprints, with which you can unlock your iPhone. These can be fingerprints of different fingers of the same person, then when you try to unlock you will not have to use only one finger all the time. It can also be the fingerprints of family members who can use this device.

When adding new fingerprints, make sure that the system reads and recognizes them completely and correctly. A partially scanned fingerprint will prevent you from unlocking your iPhone later.

It is also worth making sure that the smartphone recognizes the owner's fingerprints in the cold season. To do this, you need to add one scanned in the cold to the list of recognized prints. Since low air temperatures can partially change the fingerprint, making it narrower, a scanner that has a regular fingerprint stored in the database may not correctly perceive a frozen fingerprint.

The fingerprint scanner has already ceased to be something special - today not only flagships acquire it model range, but also many smartphones of a decent level. The fingerprint scanner is used to unlock the device, protecting it from unauthorized access. It is also used as a security element for some applications. This is a very convenient and reliable solution, but, unfortunately, only until the scanner stops responding properly to the owner's finger.

Possible causes of malfunction

All reasons for the failure of the fingerprint scanner to perceive the fingerprint of the owner of the smartphone and properly respond to it can be divided into 4 groups:

  1. Damage to the button sensor loop (when the device is opened on its own or after a strong blow);
  2. Software failure;
  3. The button surface is wet or heavily soiled;
  4. Change in fingerprint pattern (physical damage to the skin, its roughness due to frostbite, chemical substances, callus formation).

Ways to fix the situation

Option 1: If you are sure that the sensor cable is damaged, take your smartphone to a repair shop. In most cases, the masters manage to cope with the breakdown.

Option 2: Refresh software smartphone. You may have missed an important update, which caused the scanner to malfunction. If, on the contrary, the scanner stops working after installing the update, revert to the previous firmware version. You can (don't forget to create a backup so as not to lose all information from the smartphone).

Option 3: Using a damp (not wet!) cotton swab dipped in alcohol, gently wipe the surface of the button. Dry it and check if the sensor has worked. Only touch the button with clean and dry fingers.

Option 4: The imprint replacement method is very effective. The work of the fingerprint scanner is not only normalized, but also accelerated. The procedure is as follows:

1 . Delete the fingerprint that was entered earlier;

2 . Go to " Settings" -> "Sound and disable there sound accompaniment screen unlock;

3 . Return to " Settings" -> "Lock screen and password" and there set the sleep time for the screen to 2 minutes;

4 . Next, we re-enter the fingerprints, but in a special way: the first time we touch the sensor with a dry finger, the second time it is moistened (not wet!). Alternatively, you can touch a wet sponge with your fingertip or simply lick your finger.

As ridiculous as this method looks, it works and works great - tested on Xiaomi smartphones.





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