The problems with fingerprint sensor on Xiaomi They may be common and in others not so much. However, whatever the fault, here we will tell you what you should do to fix it. It doesn't matter if the component is on the side of the device or on the screen directly, the failure always has a solution and we will tell you what to do in different cases.
What problems can the fingerprint sensor have on Xiaomi?

There are many Xiaomi models that come with the fingerprint sensor on one side of the team. However, newer models have this make up on the screen, something that has generated some failures according to users. Let's see what these problems are and how to solve them:
Does not read fingerprint
The fingerprint reading may have been done poorly and when you try to use it it doesn't read it clearly. The reasons may be that when you registered it you did it wrong, and the system could not store your fingerprint correctly. To solve this situation, it is best to make a new registration and to do this you have to follow these steps:
- Enter the Android settings.
- Tap on “security”.
- Look for the “fingerprint” option.
- Select where it says "add a fingerprint."
- Follow the system instructions to register your fingerprint again.
It is best to register several fingerprints, so that in case one fails, the other is there to compensate. In some cases the fingerprint may be registered correctly, but you have a screen protector. These make the sensor not usable easily, especially for people with poorly readable fingerprints.
The problem may be with the screen
Your screen display may be the problem and you can check if it continues to fail when registering the fingerprint. Although the first thing that may come to mind is to change the screen, there are other less radical methods that you can try before making this decision. Let's see what they are:
- Perform a deep clean of your screen with a piece of cotton or the case you use to clean your lenses. You can include a little alcohol, do not use water or household cleaning chemicals.
- El screen protector may be the problemIf you remove it and the fingerprint is read, it is best to remove this accessory.
- Make a screen test, all mobile phones have a mechanism to do this and on Android you can find it in the following trick:
- Open your phone app and dial these digits: “*#*#2644#*#*”
- Also, you can download an app that helps you test the touch of your screen.
Clear cache and sensor data

Everything that works on Android is normally through an app and Xiaomi's fingerprint sensor is no exception. Like every system, it stores a series of data that we can clean and reset the tool locally. To do this you have to do the following:
- Enter the Android settings.
- Find the “applications” section and tap on “manage apps«.
- Tap the three dots at the top right of the screen and select “show all apps.”
- Write "Fingerprint«.
- Once inside, click on “clear data”.
- Finish by restarting the phone.
Update the operating system
If you have an old operating system, it is best to try to update it so that the sensor receives its news and can function correctly. Normally these types of updates are notified and if you have space on the disk you can do it without problem. If not, here we will tell you how to get to this space:
- Enter the phone settings.
- Tap "about phone."
- Press the MIUI version of your mobile.
- Enter system updates.
- If there is one available, start the download, but try to do it with a Wi-Fi connection.
- If nothing appears, tap the three-dot menu and press “select update package.”
- Download the available update.
Factory reset the mobile
Although it is a very extreme resource, it sometimes works to solve fingerprint problems, but before doing so, make a backup copy of your files. Back up contacts and everything that is vulnerable to a factory reset. Even write down the applications you had downloaded to download them once you restore the service.
Go to a technical service
If none of the above has worked for you, the last resort is to take it to a technical service. There you can find the fault, but if its cost is higher than buying new equipment, think carefully before repairing it.
There may be many problems with fingerprints on Xiaomi, but the solutions are available and totally viable. Try to check each step to arrive at the final answer. Share this guide with other users so they know how to act in these types of situations.