How to set up the proximity sensor on Xiaomi Redmi Note 10

Xiaomi Redmi Note 10 is a popular device, but users often experience incorrect proximity sensor work, which is manifested in the fact that during a conversation the screen does not go out when you bring the phone to your ear or, conversely, turns off prematurely.

This component may cause accidental cheekstrokes, call resets, or the inability to complete a call. Redmi Note 10 device owners need to know how to diagnose and calibrate themselves without going to a service center. Often the problem lies in a software failure or contamination, rather than a physical breakdown.

In this article, we will look at all the available ways to troubleshoot, from simple cleaning to the use of hidden engineering menus. You will learn how to properly adjust the sensitivity of the sensor and check its performance using the system tools MIUI. It is important to perform actions consistently to avoid errors in the system settings.

Diagnostics and check of sensor performance

Before you start to make complex manipulations, you need to make sure that the problem really lies in the sensor, and not in the software bug of the application "Phone". The first step should always be visual inspection and basic verification. On models of the Redmi Note series, the sensor is often hidden under a thin layer of glass next to the front camera or speaker.

You can use the built-in engineering test for the initial check. Open the Phone app and type ##6484##. Once you enter the characters, you will open the CIT (Customer Information Test) menu. In the list of tests, find Proximity Sensor or Approximation Sensor.

Inside the test, you'll see numerical values. If you put your finger to the top of the screen, the values should change. If the numbers stay at zero or don't respond to the movement of the hand, you need a deeper setup or hardware repair, and it's also worth checking if there's a protective film with an opaque cutout over the sensor.

⚠️ Warning: Do not attempt to disassemble the case of your smartphone to clean the sensor from the inside if you have no experience.This can cause damage to the plumes and loss of warranty.

Often users forget that the case can block the sensor's area of operation. Remove the accessory and repeat the test. If the sensor reacts in an engineering test, but in life it does not work well, then software calibration is required.

Preparation for calibration and cleaning of the sensor area

The most common cause of malfunctions in the Xiaomi Redmi Note 10 is banal pollution. Finger fat, dust in your pocket or glue residue from an old film can block the infrared radiation of the sensor. Before starting the software setting, be sure to wipe the top of the screen with a microfiber.

Use a special screen cleaner or a slightly wet wipe. Do not use aggressive chemistry, as the oleophobic coating of the display may be damaged. Pay special attention to the areas above the speaker speaker, where the infrared sensor is usually located.

Once cleaned, restart the device.Reboot is necessary to reset temporary driver errors that may have accumulated during operation.If the problem persisted due to software freeze, this step can completely solve it without further intervention.

Also check for system updates. Xiaomi periodically releases patches that fix sensors. Go to Settings → About Phone → MIUI version and click the Update Check button. The current firmware version contains important fixes for the Redmi Note 10.

Calibration through CIT Engineering Menu

If a simple cleaning doesn't work, you need to calibrate, which is the process where you train your smartphone to determine what counts as a "near object" and what counts as a "remote object." For the Xiaomi Redmi Note 10, this process is done through the same CIT menu that was used for the diagnosis.

Enter the test menu with code ##6484## and select Proximity Sensor. The screen will show an instruction and two buttons, often labeled "Calibration" or simply the input box, and you will need to remove all items from the screen to be minimal (usually 0.0 or 5.0), and press the calibration button.

After successful calibration, the values should stabilize. Close the test and check the normal call mode. If the screen now goes out correctly, the problem is solved. In some cases, it may be necessary to repeat the procedure 2-3 times to achieve the perfect result.

It's important not to close the sensor with your finger during the initial calibration phase if the instruction tells you otherwise. Follow the instructions on the screen exactly. Incorrect calibration can cause the phone to think it's in the ear all the time.

Reset sensor settings through the Phone application

In the MIUI shell on the Redmi Note 10, there's a hidden reset feature for the proximity sensor, which is less risky than full calibration, and often helps with software glitches, and it returns sensor parameters to factory values.

Open the Phone app. Click on three dots in the corner or the menu button, then select Settings. In the list that opens, look for Incoming Calls. Scroll down to Approximation Sensor.

Here you can see the Reset Calibration button or the switch that you need to turn off and turn on again. Depending on the version of MIUI, the interface may differ. If there is no such option, try clearing the phone application data through Settings → Applications → All Apps → Phone → Memory → Clean.

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After resetting the sensor settings, be sure to restart the smartphone. Without a reboot, the new parameters may not take effect correctly.

This method is especially effective if the problem occurs after a system update or installing a new launcher.Resetting the Techon app will not delete your contacts or call history, as they are stored in the cloud or a separate database. SIM-map.

Using third-party applications to set up

When Xiaomi's built-in tools don't work, Google Play Store apps come to the rescue, allowing you to gain more detailed control over sensor sensitivity and conduct in-depth diagnostics. One of the most popular tools is Proximity Sensor Reset & Test.

Install an app and run the test. It'll show you a real-time graph of how your Redmi Note 10 reacts to your hand approach. Some apps allow you to force the sensor driver to reset.

Be careful with applications that require ROOT-Their use on Xiaomi Redmi Note 10 can lead to loss of warranty and disruption of banking applications.

If third-party programs show that the sensor is physically not working (values do not change at all), the problem is likely hardware.

Hardware problems and component replacement

If none of the software methods worked, there's a physical malfunction. On the Redmi Note 10, the proximity sensor can fail due to a fall, moisture or manufacturing defect, and in such cases, a replacement part is required.

Symptoms of hardware breakdown include a constantly burning screen during a conversation, an inability to respond to a call by swiping (the screen does not respond), or a black screen immediately after a call starts without the ability to reset. In Redmi Note 10 models, the sensor is often integrated into the display plume or under the protective glass, which makes it difficult to replace.

Replacement requires disassembling the device, disabling the battery, and replacing the sensor module, a complex procedure that requires skills and tools, and contacting Xiaomi’s authorized service centers is recommended.

⚠️ Warning: Self-replacement of the sensor on the Redmi Note 10 can damage the display as it is glued to the frame.Be prepared for the risks.

The cost of replacing is usually low, but the work of the master can cost more than the part itself.Be sure to back up the data before going to the service, as during repairs, you can reset the device settings.

Frequently Asked Questions (FAQ)