The Xiaomi Redmi Note 8 Pro line of smartphones comes with a variety of sensors designed to make it easier to interact with the device, one of which is the proximity sensor, which automatically turns off the screen when you hold the phone to your ear, which prevents accidental cheek pressing and saves battery power, but in some cases it can be uncomfortable.
Users often experience a screen that doesn't light up when the phone moves away or goes out in the middle of a video call, and that's when you have to deactivate the sensor or recalibrate it deeply. Android's standard settings don't always provide direct access to this feature, requiring a deeper immersion.
In this guide, we’ll look at all the ways you can manage this module, from simple in-app settings to using an engineering menu, and learn how to properly adjust the sensitivity or completely disable the feature if it interferes with your daily use of the gadget.
Why you might need to shut down the sensor
The main reason Redmi Note 8 Pro owners are looking for a way to turn off the sensor is because the protective film or glass is not working properly. If the accessory covers the top of the display where the infrared emitter is located, the screen will go out spontaneously, which makes it impossible to use hands-free communication or video calls via instant messengers.
Another scenario involves software failures of the MIUI operating system. Once the firmware updates, the sensor processing algorithms may not work properly, in which case the phone "thinks" it's in the pocket or ear, although this is not the case, disabling the function in this case becomes a temporary solution to the problem before the patch is released.
There are also cases of individual intolerance to the logic of the device, some users are more comfortable with controlling the state of the screen themselves, especially when using specific accessories, such as Bluetooth headsets with magnetic mounts, which can falsely activate the sensor.
- 📱 Protection against accidental cheek pressing during a conversation has ceased to work adequately.
- 🛡️ The protective glass or film covers the sensor area, causing false positives.
- 📞 The need for constant visual screen monitoring during long video conferencing.
⚠️ Warning: A complete shutdown of the proximity sensor will cause the screen to stop fading during a conversation, which can cause occasional ear or cheek pressing, leading to a hold call or a speaker call.
Before you go to radical measures, you should try software calibration, and often the problem is solved not by turning it off, but by setting the sensitivity thresholds correctly, which allows you to preserve functionality but remove annoying errors.
Setup in Standard Calling Applications
The easiest and safest way to control the sensor is directly in the caller interface. However, depending on the version of the MIUI and the type of application installed (Google Phone or MIUI Dialer), the location of the options may vary. In most cases, a complete shutdown is not available here, but you can adjust the behavior.
If you use a standard Google app, which is often installed on global firmware versions, you need to go to the settings through a three-dot menu, and you should look for the Incoming Calls section, and that's where the switch for screen cancelling hides.
Owners of Chinese firmware versions or those using Xiaomi’s native shell need to look for settings in the Antispam menu or directly in call settings. The interface can be slightly changed, but the logic remains the same: look for items related to the proximity sensor.
It’s worth noting that newer versions of Android are increasingly removing the ability to completely disable the sensor from the user menu, for security and user experience, as most problems are solved by replacing the protective glass.
Use of the Engineering Menu for Calibration
If standard settings don't work, Xiaomi's engineering menu comes to the rescue, a hidden part of the system designed to test hardware components, and not only can you check the sensor's performance, but you can also manually calibrate it, which is often more effective than turning it off completely.
A special entry into this mode is used. USSD-Type on the phone keyboard ##6484##. If the code doesn't work, your firmware version may be blocking this input, so you can try an alternative method through the Testing app in the settings menu.
Once you enter the CIT (Customer Integration Test) menu, you need to find the Proximity Sensor, which is usually at the top of the list or in the Common category. Click on it to run the test. Cover the top of the screen (the area of the speaker) and remove your finger. The indicator should change color from red to green.
Sequence of actions for calibration:
1. Enter the engineering menu.
2. Select Proximity Sensor.
3. press the Calibration button (if available).
4. Close the sensor and wait for the audible signal.
5. Remove your finger and press OK.If the calibration is successful, but the problem persists, you can try resetting the sensor data. In some versions of the engineering menu, there's a "Clear Calibration" button, and after pressing it, you need to restart the device and recalibrate the calibration procedure, which helps to reset the erroneous values accumulated by the system.
Application of third-party applications and ADB
When Xiaomi’s built-in tools are exhausted, users turn to third-party software. There are many utilities in the Play Market store, such as “Proximity Sensor Reset & Fix” or “Sensor Box,” which allow users to force the sensor driver to restart or change its sensitivity.
A more advanced method is using USB debugging and ADB (Android Debug Bridge) tools, which requires connecting a smartphone to a computer, allowing you to make changes to system files that are not available through a normal interface, but requires caution and basic command-line knowledge.
- 🔧 Install a fixer application from the Play Market for automatic calibration.
- 💻 Connecting the phone to the PC and launching commands ADB parameter-reset.
- 📲 Using root rights to edit sensor system configs.
⚠️ Attention: Use ADB-commands and third-party applications with access to the system can lead to unstable operation of the smartphone. careless change of system parameters may require a complete reset of the device to factory settings.
To use ADB, you need to enable Developer Mode in your phone settings, and this is done by seven times pressing the build number in the About Phone section, and when you turn on the menu, you will see a "Developer Mode" item where you need to activate "Debugging by USB."
Table of sensor control methods
Below is a comparative table of the different ways in which the proximity sensor works, which will help you choose the best option depending on your technical background and the severity of the problem.
| Method | Difficulty | Efficiency | Risks. |
|---|---|---|---|
| Call settings | Low. | Medium | Absent. |
| Engineering Menu (CIT) | Medium | Tall. | Minimum |
| Third-party annexes | Low. | Depends on the software. | Advertising, access to data |
| ADB team | Tall. | Maximum | Possible system errors |
As you can see from the table, for most users, the optimal solution is to use an engineering menu, which is a standard tool of the manufacturer, which does not require the installation of excess software and gives direct access to the hardware.
Hardware causes and physical intervention
The physical causes of the malfunction cannot be ruled out, either. On the Redmi Note 8 Pro, the proximity sensor is located in a narrow strip above the screen. If the phone fell, the chip could move away from the plume. The problem is often pollution: dust and fat accumulate in the speaker grid, blocking infrared radiation.
In some cases, a thorough cleaning of the upper body helps, use a soft brush and a little isopropyl alcohol. Don't pour the liquid inside, just slightly moisten the bristles and gently walk around the area of the speaker.
What to do if the glass is broken?
If the sensor is physically damaged by impact or moisture, software methods will not help, in this situation, you can either accept the constantly burning screen during a conversation, or contact a service center to replace the plume or module.
Frequently Asked Questions (FAQ)
Can I turn off the sensor forever without root rights?
Why did the sensor stop working after the screen was replaced?
Does the dark theme affect the sensor?
Will the sensor calibration reset to factory settings?
☑️ Pre-switch check
💡
Before any manipulation of the system settings, back up important data. This will take a few minutes, but save you from losing contacts and photos in the event of an unexpected failure.
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In most cases, the Xiaomi Redmi Note 8 Pro problem is solved not by disconnecting, but by cleaning the sensor area and recalibrating through the engineering menu.
To sum up, the proximity sensor management on the Xiaomi Note 8 Pro requires a comprehensive approach, starting with the least risky methods: checking accessories and settings in the call app. Only if they do not work, you should move to the engineering menu and third-party software.