When the sensor on Xiaomi's phone doesn't respond, it can take you by surprise at the most inopportune moment: the screen is on, the image is there, but the device ignores your touch, turning into a useless piece of glass. Most often, the problem lies in a software failure of the MIUI or HyperOS shell, which can be fixed on its own without visiting the service.
But you can't ignore physical factors either: Dirt on the screen, cheap security glass, or overheating of the processor are often the culprits of a dead touchscreen. In this article, we'll look at all the possible causes, from trivial statistics to hardware damage to the plume, and propose effective ways to restore performance.
If you have a Xiaomi Redmi Note or a flagship Mi model, the algorithm will be similar, but the paths in the settings menu may differ. It is important to act consistently, starting with software methods to eliminate complex breakdowns. Below are proven ways to bring the device back to life.
Primary diagnosis and elimination of external factors
Before you go into deep settings, you need to eliminate trivial interference. Often the touch screen stops working due to static electricity or pollution. Statics are especially relevant in winter or when carrying a phone in synthetic pockets.
Remove the protective case and wipe the display with a microfiber. Fat spots and moisture can create phantom presses or block the response. If you have a thick, low-quality security glass on the screen, it can distort the signal, and the sensor simply can't see the finger.
⚠️ Attention: If the screen is filled with liquid, do not try to charge the device or dry it with a hair dryer. moisture inside the case can cause the touchscreen controller to short circuit.
Try a soft reboot. On many Xiaomi and POCO models, this is done by holding the power button for a long time (10-15 seconds), which releases a static charge from the power controller and display.
In some cases, connecting a charger from another manufacturer helps. Unstable voltage from cheap power supplies can interfere with the capacitive layer of the screen, making it insensitive.
Software Recovery Methods through the Menu
If external factors are excluded, the problem may be a conflict of software processes. The MIUI shell sometimes freezes without processing incoming signals from the touchscreen.
Go to Settings → About Phone → MIUI. If the system suggests upgrading, do it. Often developers release patches that fix the errors of the display drivers. It is also worth checking whether the RAM is overloaded.
Close all background applications. If the sensor is weak, try clearing the system cache. To do this, go to Settings → Advanced Settings → Memory and press Clear. This will free up resources for touch processing.
☑️ Software testing
Turn off In Your Pocket mode, which often blocks the screen incorrectly. Path: Settings → Lock screen → Mode in your pocket. Uncheck the tick and check the sensor.
Sensor calibration: hidden functions and engineering menu
One of the most effective procedures is sensor calibration, and Xiaomi phones have a built-in CIT engineering menu designed to test hardware components, accessed through a special code in the Calls app.
Dial the code ##6484##. The test menu will open. Find Touchpanel or TP Test. Follow the instructions on the screen: usually swipe through the circuits of squares or draw lines, which will help the system relearn the coordinates of your screen.
⚠️ Note: In the engineering menu, do not change the settings that you are not sure about. Use only the testing and calibration functions so that other modules do not interfere with the operation of the other modules.
If the standard menu doesn't open or the test doesn't work, you can try third-party apps from Google Play, like "Touch Screen Repair" or "Touchscreen Calibration." They force the touchscreen driver to restart.
What if the code doesn't work?
After calibration, be sure to restart the device. Sometimes the changes only take effect after a full power cycle.
Safe downloading and conflict removal
Often the sensor doesn't work because of a newly installed app, and some memory cleaner or accelerator may be in conflict with system input processes, and to check that, you need to start the phone in safe mode.
In this mode, only system applications are downloaded, and if the sensor is perfectly functioning in safe mode, then the problem is in third-party software, remember what you installed before the problem appeared, and delete those applications.
To enter Safe Mode on Xiaomi, you usually need to press the off button, and when the off menu appears, keep your finger on the “Stop” icon (or “Reboot”, depending on the version of MIUI) for a long time until the suggestion to go to Safe Mode appears.
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| The screen doesn't react anywhere. | Hardware failure/Steil | Repairs at the service |
| Part of the screen is not working. | Matrix/Tachscrin damage | Replacement of the module |
| Sensor 'gluts' in games | Lack of RAM/Heating | Resetting settings/Cooling |
| Only rebooting helps. | PO/Cash conflict | Removal of applications/Reset |
Deleting suspicious programs often solves the problem instantly. Note applications that require permissions over other windows, which often cause input to be desynchronized.
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If you can’t remove the app because the sensor isn’t working, try plugging in. USB-mouse-over OTG. This will allow you to manage the interface and remove malicious software.
Full reset (Hard Reset) as a last resort
If software methods don't work, the radical but effective way is to completely reset to factory settings, which will delete all your data, so we strongly advise you to back up if you can control your phone over a PC or cloud.
You can reset it through the Recovery menu. Turn off the phone completely. Then press the button combination: usually Volume Up + Power. Hold it until the Mi or Redmi logo appears.
In the Recovery menu, you can navigate with volume buttons (up/down), and you can choose with a power button. Choose English, then Wipe Data → Wipe All Data. Confirm action. The phone will clear and reboot.
⚠️ Warning: Once reset, the phone will look like new. All photos, contacts and apps will be deleted. Make sure you remember the password from your Google and Mi Account account, or the device may be locked.
If the problem persists after the reset, the probability of hardware failure approaches 100%.The software part of the phone is intact, but the physical display module or plume is damaged.
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Hard Reset eliminates 90% of software calibration errors and driver conflicts, but requires a full backup of data before starting the procedure.
Hardware malfunctions and repair of touch screen
When the sensor on Xiaomi’s phone doesn’t respond even after it’s reset, it’s “iron” — possible reasons: the plume has unstuck, the touchscreen has broken (even if the glass is whole, the touch layer underneath could crack), or the power controller on the board has failed.
A common problem with Redmi budget models is the plume connector pulls away when falling, in which case a gently pressed top of the screen (in the area of the camera) or disassembling and reconnecting the plume, if you have experience, can help.
Also worth checking is the battery. The billowing battery can press the screen from the inside, creating pressure on the touch layer, causing chaotic pressing or complete loss of senses. Visually inspect the phone for curvature of the case.
In complex cases, such as the failure of the touchscreen controller (IC), requires professional soldering or replacement of the display module assembly. Self-repair without skills and equipment can lead to final failure of the device.