Smartphone owners often face the need to quickly unlock the device, and biometric protection is becoming the industry standard. Xiaomi Redmi 10 is equipped with a convenient sensor that allows you to instantly access the system without entering a pattern lock or pin code. However, when you first get acquainted with the gadget, many users are lost in search of this element, since its location may differ from the usual schemes.
In this guide, we will take a closer look at where the Redmi 10 fingerprint scanner is located and explain how it works. Understanding your device’s design will not only help you adjust security faster, but also help you avoid accidental damage to the case if you handle it sloppy. Let’s get into the technical details.
Body design and sensor location
Unlike flagship models, where the scanner is often hidden under the screen, in the budget and mid-range segment, manufacturers prefer time-tested solutions. In the Xiaomi Redmi 10 smartphone, engineers used a classic layout. The fingerprint sensor is integrated directly into the power button, which is located on the right side of the device. This ergonomic solution allows you to unlock the phone with one natural movement of the thumb of the right hand without changing the grip of the device.
This arrangement has its advantages: the button is always at hand, and the risk of false positives is minimal due to the physical isolation of the scanning area. It is important to note that the sensor itself is capacitive and responds to touch with high accuracy. If you are used to the back panel or the on-screen scanner, it will take some time to adapt to press the button with the desired force and angle of inclination.
⚠️ Warning: Do not try to push the on button with excessive force in the hope of improving reading.Mechanical pressure beyond normal can damage the microswitch, after which the button will cease to respond to short presses.
In addition, the side-mounted location protects the scanner from scratches that inevitably appear when carrying a phone in a key pocket if the sensor were on the back cover. The side-button in Redmi 10 combines the on/off screen and biometric reading functions, which saves the interior space of the smartphone for installing a more capacious battery.
Primary Biometrics Configurement in MIUI
Once you've decided on the location of the sensor, you need to set it up correctly to ensure maximum reliability. The MIUI system on which the smartphone shell is based offers flexible tools for working with biometrics. To start, go to the Settings menu and select Passwords and Security, and that's where all the key parameters for protecting your personal space are.
Then select the Unlock fingerprint option. The system will ask you to create or enter your existing screen unlock password, which is a mandatory security measure in case the scanner can't read the finger. Once you enter the code, the scanning process will begin. You will need to put your finger several times to the side button, slightly changing the angle of inclination, so that the algorithm will build a full map of papillary lines.
☑️ Fingerprint setting
It's recommended that you add both thumbprints, because you can hold your phone differently in different situations, like one hand in a vehicle or two hands when watching a video. Having two finger profiles greatly improves the comfort of using the device in everyday life. Remember that the quality of the scan is directly dependent on the cleanliness of the button surface and the finger itself.
Extended functions and use of the scanner
The fingerprint scanner in Redmi 10 is not just a way to unlock, it's a full-fledged device management tool. In the biometric settings, you can access the Additional Features section where you can activate gesture control. For example, swiping your finger down the scanner allows you to quickly roll all open applications or lower the notification curtain, which is very convenient when using a smartphone with one hand.
Biometrics are also used to authenticate applications and payment systems, and banking applications, Google Pay (or its analogues), and password managers can use your fingerprint to confirm transactions.
This eliminates the need to enter long passwords every time, making the payment process fast and secure, and the encryption of data takes place at the hardware level, which ensures that your financial information is protected.
| Function | Description of action | Where to turn it on |
|---|---|---|
| Unlocking | Access to the system | By default. |
| Turn it all down. | Closure of annexes | Additional functions → Swipe down |
| Notification curtain | Opening of the panel | Additional functions → Swipe down |
| Photography | Release of the camera shutter | Camera settings |
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Use the Swipe Down feature to quickly access the notification curtain even if the screen is off (when set up in the Gestures section) and save time and battery life.
Problems with recognition and their solution
Despite its high accuracy, users sometimes face situations where the Xiaomi Redmi 10 stops recognizing the fingerprint, most often due to contamination of the scanner surface or skin. Fat spots, moisture, sweat or residues of the cream can distort the signal reading. Regular rubbing of the side button with dry soft cloth helps eliminate most false failures.
Another reason could be a poor initial calibration, because if you added a finger quickly and didn't work through all the faces, the system might not recognize the fingerprint when you had a particular grip, so it's better to remove the old finger profile and write it back, pay special attention to the edges of the finger pad, and overwriting often solves the problem of low recognition rates.
⚠️ Warning: If the scanner stopped responding after the phone fell or moisture got inside the case, do not try to dry it with a hair dryer.
In extreme cold, fingers may become less sensitive and skin dry, which worsens contact with the sensor, and in such conditions, it is recommended to use an alternative method of unlocking, for example, a pattern lock or face (if supported by a photo unlock system).
The effect of protective accessories on the operation of the sensor
The use of protective covers and glass is common practice, but it can affect the operation of the side scanner. Unlike on-screen sensors, which are hampered by thick glass, the side scanner in Redmi 10 can be interfered with too thick or stiff cases that have protruding sides around the button. If the side of the case is above the level of the button, you physically will not be able to apply your finger correctly.
When choosing accessories, pay attention to compatibility with your model. Quality cases have special cutouts or finer parts in the area of the power button, which provide free access. If you notice that after installing a new case, the phone has become less likely to unlock, try removing protection and checking the scanner without it.
Can I use a scanner with wet hands?
In addition, some users have placed decorative metal stickers or rings on the power button, which is strongly discouraged because the metal shields the signal and makes it impossible to read the fingerprint.
The security system is working properly.
Alternative methods of biometric protection
If using a fingerprint is uncomfortable for some reason, the Xiaomi Redmi 10 offers an alternative in the form of face unlocking, which uses a front-facing camera and artificial intelligence algorithms to recognize the owner. Although this method is less secure than a fingerprint scanner (as it can be fooled by a photo), it provides a sufficient level of protection for everyday use.
To activate this feature, go to Settings → Passwords & Security → Face Unlock. The system will prompt you to look into the camera and turn your head slowly to collect facial geometry data. In the future, unlocking will occur automatically when you raise the phone, but in bright sunlight or in complete darkness, you can experience difficulties.
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Combining security techniques (fingerprint + face + password) provides maximum flexibility: if one method fails, you can always use the other.
You can delete all your fingerprints and facial data at any time by resetting your security settings, which is useful when selling a device or transferring it to another user.
Barely.