The sensitivity of the touch screen on Xiaomi smartphones is one of the most common causes of user discontent. The problems range from random โghostโ touches to completely ignoring light taps. In 80% of cases, it is not hardware defects that are to blame, but software settings or screen contamination. This article will help you understand how to increase the sensitivity of the sensor without going to the service center, from simple calibration to replacing the protective glass.
Itโs important to understand that Xiaomi uses different types of sensors depending on the model: capacitive (in most smartphones) and resistive (in rare budget devices). The setting methods for them are different. We will look at universal solutions that work on the Redmi Note 12, POCO X5, Mi 11 and other popular models. If after all the manipulations, the problem persists, this is a reason to suspect a hardware malfunction (detachment of the plume, damage to the controller).
1. Calibration of the sensor through the engineering menu
The most effective way to get back to factory sensitivity is through software calibration, which doesn't require root rights, only access to a hidden engineering menu, and works on all Xiaomi MIUI-based smartphones (including HyperOS).
Instructions:
- Open the Phone app.
- Enter the combination: ##6484## (to check the sensor) or #4636## (total engineering menu).
- Select Touch Screen Test or Sensor Test.
- Follow the instructions on the screen: you usually need to alternately touch the crosses in different areas of the display.
- After the test, press Calibrate or Reset (in some firmware, the option is hidden โ see spoiler below).
What to do if there is no Calibrate button?
โ ๏ธ Attention: Some users report that after calibration through the engineering menu, "dead zones" appear in the corners of the screen, this is due to the incorrect operation of drivers on custom firmware. If you notice a deterioration, reset the settings in the same menu.
2. Sensitivity setting in MIUI/HyperOS
Xiaomi's standard settings have hidden settings that affect screen responsiveness, which can be changed without root rights, but the path depends on the shell version:
For MIUI 12-14:
- Go to Settings โ Display.
- Tap 5 times on the item Screen resolution (developer mode is activated).
- Return to the main settings menu, select Additional โ Special features โ Sensor sensitivity.
- Move the slider to the High or Maximum.
For HyperOS:
- ๐ฑ Open the Settings. โ Screen.
- ๐ Scroll down and select Additional screen settings โ Touch mode.
- ๐ฏ Set the value High accuracy (could be called Game Touch on Black Shark gaming smartphones).
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If your firmware doesn't have Sensor Sensitivity, try turning on Gloves Mode in your screen settings. It increases the radius of touch recognition, which indirectly improves responsiveness.
In the models with AMOLED-screens (for example, Xiaomi 13 Pro, Redmi) K60) You can also use the Always-on Display menu to turn off power optimization, which sometimes reduces sensor sensitivity.
3. Screen cleaning and replacement of protective glass
Up to 40 percent of sensor problems are due to physical obstructions between the finger and the screen, and even a subtle layer of fat or micro-scratches on the protective glass can block the signal.
- ๐งด Use isopropyl alcohol (70%+) Wet wipes don't work, they leave a divorce.
- ๐ Look at the screen at an angle: if you see rainbow divorces โ itโs traces from cheap gels or creams.
- ๐ก๏ธ Remove the case and check if it is pressing on the edges of the screen (relevant to the screen). POCO F5 Redmi Note 11 with curved displays).
- ๐งฒ If you use a magnetic holder for the machine, remove it โ the magnetic field distorts the sensor.
If the screen is installed protective glass thickness of more than 0.3 mm, it can block up to 30% of the signal of the capacitive sensor.
| Type of protection | Thickness | Effect on sensitivity | Recommendation |
|---|---|---|---|
| Liquid glass | 0.1-0.15 mm | Minimum | โ Best choice. |
| Thin glass (2.5D) | 0.2-0.3 mm | Weak. | โ Suitable for most people. |
| Thick glass (3D) | 0.33-0.5 mm | Strong. | โ Not recommended |
| Film (matte) | 0.1-0.2 mm | Average (depending on material) | โ ๏ธ Only quality brands |
Critical information: On Xiaomi smartphones with an ultrasonic fingerprint reference sensor under the screen (Mi 10T, Redmi K40 models), thick glass can completely block the scanner, in which case you will need to replace the original protection with slots for the sensor.
4. Update of firmware and sensor drivers
Manufacturers regularly release patches to fix sensor bugs. For example, MIUI 14.0.4 for the Redmi Note 11 Pro+ has fixed the "ghost" screen operation at humidity above 70%.
- Go to Settings โ About the phone โ System update.
- Click on the three dots in the upper right corner and select Download the latest version.
- If the update does not come, check the firmware region: ๐ EEA (Europe โ stable versions, but with delayed updates. ๐ Global is a universal firmware, but may contain bugs. ๐จ๐ณ China is the latest patches, but without Google services.
For manual installation of sensor drivers:
Download MIUI ROM Flashing Tool from the official website
Check the phone model in Settings โ About the phone โ Model
Make a backup copy of the data
Charge your phone at least 50%
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If the sensor gets worse after the update, reset to factory settings via Settings โ Additional โ Restore and Reset. This will remove the userโs conflicting settings.
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On smartphones with MediaTek processors (such as Redmi 10C), sensor drivers are updated only through full flashing. For Snapdragon (such as POCO X4 Pro), minor updates are enough.
5.Using third-party apps to customize the sensor
If standard methods don't work, you can use specialized utilities that allow you to fine-tune the sensor parameters, but you need to be careful:
- ๐ฑ Touchscreen Calibration is a simple calibration without root. Suitable for Xiaomi on Android 10+.
- ๐ ๏ธ MTK Engineering Mode โ for MediaTek devices (allows you to change the sensitivity threshold).
- ๐ฎ Game Touch Booster โ Increases responsiveness in games (powered by HyperOS).
- โ ๏ธ Sensor Box for Android โ Sensor diagnostics, but does not change settings.
โ ๏ธ Note: Apps like Touch Sensitivity Fixer require root rights and can lead to a loss of warranty.On Xiaomi smartphones with a blocked bootloader (Redmi) 9A, POCO M3) Getting root will result in all data being reset.
For temporary increase in sensitivity (for example, for games) can be used ADB-team:
adb shell settings put system pointer_location 1
adb shell settings put system show_touches 1These commands include a display of touches, which helps diagnose problems. To cancel, replace 1 with 0.
6. Hardware causes of low sensitivity
If the software methods didn't work, the problem is the hardware.
- ๐ Sensor plume detachment is a common problem after falls. Symptoms: part of the screen does not respond, "waves" when pressed.
- ๐ง Moisture intrusion - even after drying, the oxidation of contacts can occur after months.
- ๐ Power controller malfunction โ on Xiaomi with Snapdragon 8 Gen 1 (e.g. Xiaomi 12) this leads to overheating and sensor failures.
- ๐ The wear of the sensor coating - through 2-3 Year of use in cheap models (Redmi) 8A) decrease in conductivity.
Self-diagnosis:
- Connect your phone to your PC and check if the screen responds to touch in fastboot mode (press Power + Vol Down when turned on).
- Light a flashlight on the screen at an angle - if you see rainbow spots, this is a sign of detachment of the touch layer.
- Check the screen in safe mode (press the Power, then hold the "Switch off" until the option appears). If the sensor is working normally in safe mode, the software is to blame.
The cost of repairs in Xiaomi service centers:
| Type of repair | Cost (โฝ) | Time (hours) | Guarantee |
|---|---|---|---|
| Replacement of sensor plume | 1 500 โ 3 000 | 1-2 | 3 months |
| Cleaning contacts (moisture) | 1 000 โ 2 500 | 2-3 | 1 month |
| Replacement of touch glass | 4 000 โ 12 000 | 3-5 | 6 months |
| Controller soldering | 3 500 โ 7 000 | 4-6 | 3 months |
7. Alternative ways to control the telephone
If repairs are delayed and the sensor is not working, alternative input methods can be used:
- ๐ฑ๏ธ USB-The mouse is connected through OTG-Adapter.Works on all Xiaomi with Android 8+.
- ๐ฎ Gamepad โ for example, Xiaomi Game Controller or Sony DualSense (you need to set up via Settings) โ Connected devices).
- ๐ฃ๏ธ Voice Assistant โ activated through Settings โ Special facilities โ Voice access.
- ๐ฑ Remote management โ applications like TeamViewer QuickSupport or ApowerMirror.
To enable gesture control (if the sensor responds to strong pressing):
- Activate Settings โ Special Opportunities โ Gestures.
- Turn on Touching and Holding the Back of the Head (for scrolling) or Shaking for Actions.
- Configure AssistiveTouch (floating button) in Settings โ Screen โ AssistiveTouch.
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HyperOS smartphones have a hidden One-handed mode feature that reduces the screen workspace, activates the swipe from the bottom edge to the center (you need to enable Settings โ Screen โ One-Hand Mode).