Where is the proximity sensor in the settings on Android: search and calibration

Many smartphone users are faced with a situation where the screen goes out during a call or, conversely, does not respond when the device is brought to the ear. This is direct work proximity sensor, which is often hidden from the eyes of the owner. The Android operating system does not have a single universal “Proximity Sensor” button in the main settings menu, which raises a lot of questions. The location of this element depends on the shell manufacturer and operating system version.

Understanding how this mechanism works will help you quickly diagnose problems. Usually the system automatically controls this component, but in some cases manual calibration or verification through the engineering menu is required. If you notice that your phone does not turn off the screen when making a call, there may be a software glitch that is preventing the equipment from working correctly. We will analyze all the available ways to access the control of this module.

Hidden location: why there is no direct button in the menu

Electronics manufacturers deliberately hide sensor settings from the average user. This is done to prevent accidental breakdown of the functionality, since incorrect calibration can make the phone practically unusable for calls. The standard path Settings → Screen or Settings → Accessibility rarely contains direct switches for this module. Most often, control is carried out automatically by algorithms operating system.

In some models Xiaomi, Samsung or Huawei access to equipment testing is possible only through special codes or hidden developer menus. The usual settings menu focuses on basic functions: brightness, wallpaper and sound. If you are looking for a button to turn on the sensor, it simply is not there, since it should always work. However, there are ways to force testing.

The absence of an explicit menu does not mean that you cannot influence the operation of the device. There are third-party applications and engineering codes that provide access to diagnostics. It is through them that you can see the current sensor readings and start the procedure automatic calibration. This is especially true after replacing the display or moisture getting into the case.

Using the engineering menu to check sensors

The most reliable way to find and check the sensor is to enter the engineering menu. This is a hidden section of the system intended for technicians. It is accessed through a set of special USSD codes in the Phone application. The codes differ for different manufacturers, so it is important to know the exact combination for your smartphone model smartphone.

Enter one of the following codes into the dialer: ##4636## for pure Android and many Pixel models, or #0# for Samsung devices. After entering the last character, the menu will open automatically, without having to press the call button. Inside you will see a list of tests where you need to look for item Proximity Sensor or Sensor.

⚠️ Attention: In the engineering menu, do not change settings whose meaning you do not know. This may lead to incorrect operation of the radio module or screen.

After entering the sensor testing section, you will see two values: the current state (usually 0 or 1) and the distance in centimeters. Cover the top of the screen with your palm. If the numbers change and the screen goes dark - hardware it’s working. If there is no response, a soft reset or repair may be required.

Calibration through hidden manufacturer codes

If a simple check shows failures, calibration may be required. For this, there are specific codes that trigger the sensitivity adjustment process. For example, devices Xiaomi and Redmi often use a code ##6484##that opens the full CIT testing menu. Here you can select the “Proximity Sensor” item and follow the instructions on the screen.

The process usually looks like this: you remove your hand from the screen, the system fixes “infinity”, then close the sensor with your finger, and the system fixes “0”. After this, the data is written to memory. On some models Meizu or Lenovo codes may differ, for example ##3646633##. It is important to perform these steps in good lighting and a clean screen.

The table below shows popular codes for accessing hardware tests on various platforms:

Third-party applications for controlling sensors

When built-in methods are not available, applications from Google Play come to the rescue. apps like Proximity Sensor Reset & Calibration or Sensor Test allow you to visualize the operation of the sensor in real time. They do not require root access for basic diagnostics, which makes them safe for the average user.

Such utilities often have a “calibration” function, which is essentially a reset of the sensor cache. The app will ask you to cover the top of the phone and then open it. After that, it sends a command to the system to recalculate the base values. This helps if software failure caused incorrect memorization of threshold illumination values.

• 📱 Sensor Box —shows graphs of all sensors, convenient for identifying a “glitchy” sensor.
• 🔧 Proximity Sensor Reset —specialized tool for resetting and reinitialization module.
• 📊 AIDA64 —a professional tool for viewing raw data from sensors, useful for advanced users.

Using third-party software is a great way to avoid entering complex engineering menus. However, it is worth remembering that no application can fix a physically broken sensor. If after calibration there is no reaction in the application and in the engineering menu, the problem lies in the hardware.

Physical causes of the malfunction and their elimination

Often, searching for sensor settings in the Android menu turns out to be useless, because the problem is of a physical nature. The proximity sensor is an infrared emitter and receiver located in the top frame of the screen. Any obstacle between them and the outside world blocks work. The most common reason is incorrectly glued protective film or glass covering the speaker area.

Contamination also affects operation. Grease, dust or drops of moisture can scatter the IR beam, creating a false impression of a close object. In this case, the screen will go dark even when the phone is on the table. Thoroughly cleaning the top of the case with an alcohol wipe often solves the problem without any adjustments.

⚠️ Attention: If the phone has been dropped or opened, the sensor cable may have come loose from the motherboard. In this case, software calibration will not help; disassembly will be required.

Another nuance is the covers. Some massive cases with high sides may block the sensor's operating area. Try removing the cover and checking the operation. If the screen goes dark in the case, but works fine without it, the reason has been found. In such cases, carefully cutting a hole in the case or replacing it helps.

Accessibility settings and blocking

Modern versions of Android (10, 11, 12 and later) have introduced functions that may conflict with the sensor or imitate its operation. For example, Remote Control or some power-saving modes may force the proximity sensor to be turned off to allow quick access to notifications. Check the section Settings → Accessibility.

Here the “Android Remote Control” item or accessibility services from third-party applications (launchers, ad blockers) can be activated. They take over control of the screen. Try temporarily disabling all suspicious services and check if the phone's behavior changes during a call. It’s also worth checking the “Pocket Mode” settings.

• 🛡️ Find the “Protection against accidental clicks” item in the screen settings.
• 🔋 Disable the "Energy Saving" mode, which can limit the operation of sensors.
• 📵 Check if the "Do Not Disturb" mode with special activation rules is enabled.

If you use custom launchers or themes, they can also affect system interruptions. Returning to the standard theme helps eliminate software conflicts. In rare cases, resetting the settings to factory settings helps, but this is an extreme measure.

Frequently asked questions (FAQ)