How to set up the proximity sensor on Xiaomi Note 10 Pro: a complete guide with solutions to problems

Why the Xiaomi Note 10 Pro’s proximity sensor is more important than you think

The proximity sensor in the Xiaomi Note 10 Pro is a small but critical component that automatically shuts down the screen during phone calls. When you hold your smartphone to your ear, the sensor registers the obstacle and extinguishes the display, preventing accidental brushing with your cheek or ear. However, many users face problems: the screen does not go out during a conversation, the sensor fires too late or, conversely, responds to the slightest movement of the hand. In 80% of cases, these problems are solved by software setting or simple calibration — without going to the service center.

In this article, we will discuss all the ways to configure the proximity sensor on the Xiaomi Note 10 Pro, including hidden engineering menus, test code verification and manual calibration. You will also learn how to distinguish a software failure from a hardware failure and when to really carry the phone for repair. Particular attention will be paid to typical user errors that lead to improper operation of the sensor, such as the use of protective glasses with metallized coating or improper installation of cases.

Where is the proximity sensor on the Xiaomi Note 10 Pro and how does it work?

On the Xiaomi Note 10 Pro, the proximity sensor is located at the top of the screen, next to the front camera and speaker. It's not visible visually, it's hidden under the display glass and is an infrared sensor that emits and picks up the reflected signal.

• 📡 The sensor constantly emits an IR ray with frequency. ~100 Hz.
• 🔄 If an obstacle appears in the path of the beam (such as your ear), the signal is reflected back.
• 📵 The system analyzes the change in the reflected signal and turns off the screen / touch input.
• 🔄 When removing the obstacle, the sensor activates the display again.

It is important to understand that the proximity sensor is not a camera – it does not recognize objects, but only detects the presence of an obstacle at a distance of up to 5 cm. That is why it can falsely trigger on fingers, cases with high sides or even long hair if they fall into the range of the sensor.

How to check the operability of the proximity sensor: 3 reliable ways

Before you set up the sensor, make sure it works at all. Here are three diagnostic methods, from the simplest to the most advanced:

1.Test through standard call

The fastest way is to call another phone (or use the code ##4636## to call the test menu).

1. Hold your hand to the top of the screen (where the front camera is located).
2. The screen should go out in 0.5-1 seconds.
3. Remove your hand and the display will light up again.

If the reaction is not present or it is more than 2 seconds late, the sensor needs adjustment or repair.

Verification through the engineering menu (hidden test)

To access the engineering menu, type in the phone keyboard:

##6484##

In the menu that opens, select Proximity Sensor. Here you will see:

• 📊 Value - current sensor value (should change when holding hands).
• ✅ Status - status (PASS This means that the sensor is in good condition).

💡

If the engineering menu doesn't open, check if your operator or firmware is blocking it.Alternate code for some versions of MIUI: ##36446337##.

3. Use of third-party applications

If standard methods don't work, install the Phone Tester app (available on Google Play). In the Sensors section, find Proximity and check the sensor's response in real time. The app will show a graph of changes and help identify dead zones.

Step-by-step setting up the proximity sensor on the Xiaomi Note 10 Pro

If the sensor is working but is not behaving properly (e.g., too slow to react or fire from the case), it can be reconfigured.

1. Calibration through the engineering menu

This method resets the current sensor settings to factory values:

1. Open the engineering menu with the code ##6484##.
2. Choose Proximity Sensor → Calibration.
3. Place your phone on a flat surface with the screen upwards (no obstructions!).
4. Press Calibrate and wait until it is completed (usually 5-10 seconds).
5. Reboot the phone.

Remove cover and protective glass |

Charge your phone at least 50% |

Put the device on a flat surface |

Do not touch the screen during calibration-->

Sensitivity setting (requires root rights)

If the calibration didn't work, you can manually change the threshold of the sensor.

1. Install the BuildProp Editor app (root rights required).
2. Find ro.proximity.delay (delay) and ro.proximity.threshold (sensitivity threshold).
3. Change the values: For a faster turn off of the screen: reduce ro.proximity.delay to 50 (instead of the standard 100). To reduce false positives: increase ro.proximity.threshold to 5 (instead of 3).

Save the changes and restart the phone.

⚠️ Attention: Incorrect values in build.prop can lead to loss of sensor sensitivity or complete inoperability!

3. Resetting settings to factory

If the sensor started to glittle after updating MIUI or installing third-party applications, resetting:

1. Go to Settings → About the phone → Reset settings.
2. Select Reset all settings (does not delete files, only system settings).
3. After the reboot, check the sensor through a test call.

💡

If the sensor does not respond to calibration and reset, the problem is more hardware (damaged plume or sensor), in which case diagnostics are required in the service center.

Typical causes of proximity sensor malfunction and how to fix them

In 90% of cases, the proximity sensor problems on the Xiaomi Note 10 Pro are not caused by a breakdown, but by external factors or software failures.

• 📱 A protective glass or a metallic film blocks the IR signal, so you can either replace the glass with the normal one (without the metal layer) or use the notch under the sensor.
• 👛 High-sided case, which covers the sensor's range, so you can cut the top case or remove it when you call.
• 🔄 Failure after update MIUI — New firmware versions can reset the sensor settings. Solution: perform calibration (see section above).
• 💻 Application conflict – some programs (such as Greenify or Tasker) can block the sensor. Solution: temporarily turn off the battery optimizers.
• 🔋 Battery discharge - at a charge level below 15%, the system can turn off "non-critical" sensors to save power.Solution: Charge your phone.

If none of the items fit, check your phone for physical damage:

• 🔍 Examine the top of the screen for cracks or chips (even a microcrack can disrupt the sensor’s performance).
• 🛠️ Check if the sensor plume is moving away (relevant after drops or screen repairs).

How to turn off the proximity sensor on Xiaomi Note 10 Pro (and whether to do it)

Some users prefer to turn off the proximity sensor if it's not working properly or interfering with calls, but this is a temporary solution -- it's better to set up the sensor than deactivate it completely. If you want to turn it off, there are two ways:

Method 1: Through the Engineering Menu (without root)

1. Open the engineering menu with the code ##6484##.
2. Choose Proximity Sensor → Disable.
3. Confirm the action and restart the phone.

The downside of this method: After a reboot or MIUI update, the sensor can be activated again.

Method 2: Through ADB (Constant Shutdown)

To permanently disconnect, you will need a computer and enabled debugging over USB:

1. Connect your phone to your PC and open the command line.
2. Enter the command: adb shell settings put global proximity_sensor_enabled 0
3. Reset the device.

To turn the sensor back on, use the same command, replacing 0 by 1.

⚠️ Warning: Disabling the proximity sensor will cause the screen to not go out during calls, which increases the risk of accidental taps (for example, turning off the call or turning on the hands-free.

Frequent questions about the proximity sensor on the Xiaomi Note 10 Pro

Conclusion: when the setting does not help and it is time to go to the service

In most cases, the proximity sensor on the Xiaomi Note 10 Pro can be configured software-by calibrating, resetting or editing system files, but there are situations where repairs are necessary:

• 🔧 The sensor does not respond to the calibration and shows FAIL engineer.
• 💥 The screen cracked at the top (even a microcrack can damage the sensor).
• 🔌 Phone fell or was repaired (possibly damaged plume).
• 🌡️ The sensor works chaotically – it works, then not (symptom of oxidation of contacts).

If you are faced with one of these problems, do not waste time on experiments - contact the service center. the average cost of diagnostics of the proximity sensor on Xiaomi is 500-1000 rubles, and replacing the screen (if necessary) will cost 5000-8000 rubles depending on the model.

Remember, the proximity sensor is not just a handy feature, it's an important security feature. Without it, you run the risk of accidentally tapping the screen, turning off the call, or activating the speakerphone, so if the settings don't work, don't delay your visit to the service!