Owners of smartphones Xiaomi, Redmi and Poco often face the need to fine-tune the device to their individual needs. Standard factory settings do not always take into account the peculiarities of using the gadget in specific conditions, whether it is glued security glass, poor network signal or insufficient loudness of speakers. Increased sensitivity in various modules of the system allows you to significantly improve the user experience and eliminate common minor shortcomings.
Modern MIUI and HyperOS shells provide a wide range of hidden and explicit hardware management tools. In this article, we will explore proven methods for tuning the touchscreen, soundtrack, and wireless communication modules. You will learn how to properly calibrate the device so that it responds to every touch you make instantly and accurately.
Calibration and sensitivity adjustment of the touch screen
One of the most common problems users face is a decrease in screen responsiveness after installing a protective glass or film.The thickness of the glass can shield the signal, causing the smartphone to stop responding to light touches or require a stronger press. To solve this problem in an Android-based system MIUI Special treatment is provided.
To activate the sensitivity, you need to go to the settings menu. The path may vary slightly depending on the firmware version, but it is usually in the additional settings section. Importantly, this setting is designed specifically for use with protective glasses, and turning it on without them can lead to false screen positives.
Once the function is activated, the system starts to read signals from a lower threshold, which makes the control more smooth. If standard tools are not enough, it is worth checking for system updates, since manufacturers often release patches that improve the algorithms of the digitizer.
- 📱 Go to Settings. → Additional settings.
- 📱 Find the item “Gloves mode” or “Increased sensitivity».
- 📱 Activate the switch and check the screen response.
- 📱 Calibrate it through the engineering menu if necessary (code # #6484##).
⚠️ Note: Using third-party apps to calibrate touchscreen from unofficial sources can cause sensor malfunction.
In some cases, especially on older models, it may be necessary to reset calibration settings through_recovery_ menu ADB-commands to reset the parameters of the digitizer, but it requires high qualification.
Enhancing GPS signal and navigation
Xiaomi smartphones are known for their excellent specs, but sometimes users complain about a long search for satellites or “floating” a point on the map. This is often due to software limitations or malfunctions in the operation of A-GPS data. To improve geolocation accuracy, you need to properly configure the auxiliary data.
First of all, check if high-precision mode is on, and it forces the device to use not only GPS satellites, but also cell tower data, and Wi-Fi networks for faster positioning, and without this mode, navigation can be slow, especially in high-rise urban environments.
And you also have to look at the Compass app that's built into the system, which allows you to calibrate the magnetic sensor, which is critical to the correct orientation of the map, and if the direction arrow is incorrect, you can move the phone as an eight, the system caquet.
⚠️ Warning: Metal car cases or magnetic latch cases can seriously distort the signal GPS. Remove the case during calibration for accurate results.
For advanced users, there is the ability to reset the GPS cache, which doesn't delete your personal data, but it makes the phone reload the current satellite almanacs, which often solves the problem of a long navigation start.
- 🛰️ Enable the “High Accuracy” mode in geolocation settings.
- 🛰️ Calibrate sensors through the Compass app».
- 🛰️ Use the app. GPS Status & Toolbox for reset A-GPS data.
- 🛰️ Check if energy saving is blocking navigation in the background.
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For better GPS in the car, use an external antenna connected via Bluetooth if the built-in smartphone module is unstable due to tinting of the glass.
Customization of microphone sensitivity and volume
The quality of the sound recording and the voice transmission in conversation is another aspect that can be optimized, and sometimes people complain about a quiet voice even though you're speaking quite loudly, and this can be due to noise reduction settings or physical contamination of the microphone.
The Android engineering menu has the ability to adjust the level of gain on the microphone, but be very careful: over-amplification will lead to severe wheezing and distortion, which will make conversation impossible, and optimally select the value by sampling, increasing Step-by-step.
It’s also worth checking the settings of the specific app you’re communicating through (like Telegram or Viber).Some messengers have their own microphone sensitivity settings that can override system settings.
Physical cleanliness of the microphone’s dynamic opening (usually on the bottom end or next to the camera) is a must, and dirt and dust can reduce sensitivity by 30-40%, creating a “coat” sound effect.
| Parameter | Normal value. | Maximum value | Risk |
|---|---|---|---|
| Gain Mic 1 | 20-25 | 35 | Wheezing, whistling. |
| Gain Mic 2 | 20-25 | 35 | The noise of the wind |
| sydeton | 0-5 | 10 | Echo in the tube |
If software methods do not help, perhaps the problem lies in the hardware, for example, in the plume or the microphone module itself, which requires contacting the service center.
☑️ Sound check
Optimization of Wi-Fi and Bluetooth modules
An unstable connection to wireless networks is often perceived as low antenna sensitivity. Xiaomi smartphones have a feature that helps save battery power by turning off Wi-Fi in sleep mode, but it can interfere with the stability of the connection.
To increase the “glutility” of Wi-Fi, you need to prevent the system from turning off the module in sleep mode, this will increase energy consumption, but will ensure constant notifications and stable operation of background processes, and it is worth trying to change the frequency range if the router supports both standards.
Bluetooth settings allow you to enable the display of all devices and disable battery optimization for frequently used gadgets (earphones, watches), which will allow the smartphone to more actively scan the air and reconnect faster when communication is broken.
Secret code for checking antennas
Sometimes the problem is static. IP-Switch to static address. IP In network settings, it can stabilize the connection in areas with poor coverage, where dynamic assignment of addresses fails.
- 📡 Turn off the Wi-Fi Assistant in the Wi-Fi settings.
- 📡 Set up static. IP-address.
- 📡 Bluetooth Turns Off Power Savings for Important Devices.
- 📡 Reset your network settings if the problem is observed at all access points.
Light sensitivity and proximity sensor
Automatic brightness is a function that should work perfectly, but in practice often behaves incorrectly, the screen can go out when talking or shine too bright in the dark, and this is responsible for the light sensor and the proximity sensor.
There's a separate test in the CIT engineering menu to calibrate the proximity sensor, so you cover the top of the screen with your hand, and the system has to record that action, and if the calibration doesn't go through, maybe the sensor is contaminated or shielded with a protective film.
Newer versions of MIUI have introduced the “Eliminate Accidental Press” mode, which uses the proximity sensor to lock the screen in your pocket, and if this mode is too aggressive, its sensitivity can be reduced or turned off in the “Block and Protect” section.
⚠️ Warning: Do not glue the area around the top speaker with dense stickers or thick glass with a black frame - this is guaranteed to disrupt the operation of light and proximity sensors.
It’s also worth checking the Read Mode and Night Mode settings, which can artificially lower the minimum brightness threshold, making the screen too dim even in medium light.
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Proper operation of sensors is a balance between the software settings and the physical cleanliness of the top of the smartphone.
Using an engineering menu to fine-tune
For users who want to have full control of their device, there's an engineering menu available, a hidden part of the system that's designed to be tested by the plant's engineers, and you can find deep sensitivity settings of the various modules.
The most universal code for Xiaomi is ##6484##. Once you enter the menu, you will see a list of tests for all components: screen, sound, vibration, sensors.
In the Single Item Test, you can automatically check all sensors, and if a test is not passed, the system will indicate a specific failure, and you can also use TouchPanel, which allows you to see the screen response map and identify dead zones.
#6484## - The main code of the engineering menu (CIT)
#4636## - Phone and battery information menu
#3424## - Alternative test menuBe careful when changing settings in sections that you don't know what you want to do. Resetting to factory settings usually returns all values to their original state, but it's best not to take any risks unnecessarily.