Xiaomi phone doesn't respond to touch: full guide

When your Xiaomi stops responding to touch, it can be taken by surprise at the most inopportune moment: the screen is on, the images are clear, but the fingers seem to pass through the glass without causing any interface action. This is a common problem that can be caused by both software failure and physical damage to the matrix.

Before you panic or bring a device to a service center, you need to conduct an initial diagnosis. Often the reason lies in a banal system freeze or a conflict of running applications. MIUI, like any complex operating system, sometimes requires a reboot of processes to properly operate the touch layer.

In this guide, we will look at all possible causes of touchscreen failure and offer step-by-step solutions, learn how to perform a forced reboot, enter recovery mode without the help of a screen, and conduct hardware testing.

Primary diagnosis and forced reset

The first step should always be to try to force a reset, which breaks the chain of processes that could have blocked the sensor, and unlike a normal menu reboot, this method works even when there is no response to touch.

To do this, most Xiaomi models need to press the power button. Hold it for 10-15 seconds. If the device vibrates and the Mi logo appears, the system goes into reboot. Some models may require simultaneous pressing of the Loudness+ buttons and Power.

⚠️ Warning: If after a long reboot the screen still does not respond, but the phone turns on (hearing the boot sound, lighting the indicator), the problem may lie deeper in the system or hardware.

Sometimes the "discharge" method helps. Leave the phone on until the battery runs out completely and the device shuts down on its own. Then put it on charge (not switched on) and wait for the logo to appear. This cycle sometimes resets the static voltage on the touchscreen controller.

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Forced reboot eliminates 60% of sensor software freezes without data loss.

Elimination of physical interference and external factors

Often users forget that modern capacitive screens are extremely sensitive to external influences. A film or glass of poor quality can create additional resistance, which the controller reads as a mistake. If you have recently changed the protective coating, try to remove it carefully and check the sensor.

Also worth paying attention to is the cleanness of the surface: fat spots, water droplets or dust can block the response. Rub the screen with a soft microfiber soaked with a special tool. It is important to use microfiber, because paper wipes can leave villi and micro scratches.

• 🧤 Check if you are wearing gloves – ordinary fabric gloves do not conduct current.
• 🔌 Disconnect the charger – cheap power supplies can cause interference on the network.
• 🌡️ Estimate the temperature of the body - overheating above 45°C may temporarily shut down the sensor.

If the phone was in the cold, let it warm to room temperature when it's off. A sharp temperature drop causes condensation inside the case, which is a common cause of short circuits in the display plume.

Calibration of the sensor through the engineering menu

If the screen reacts but is delayed or misses, it may have miscalibrated, there is a hidden engineering menu in the MIUI shell that allows testing and tuning, and a special code in the Phone app is usually used to enter it.

Dial the combination ##6484##. If the code is entered correctly, the CIT (Customer Information Test) menu will open. Here you will find the item related to the display testing (usually called "Touchpad" or "Display"). Follow the instructions on the screen, traversing lines and pressing dots.

Some firmware versions offer automatic calibration. If the test shows errors, the system may suggest recalibrate the sensor. Once the procedure is complete, be sure to reboot the device to apply new parameters.

Codes for entering the engineering menu:
#6484## - The main test menu
#4636## - Phone Information Menu


*#06# - IMEI check

Resetting settings and entering Recovery mode

When a software conflict blocks the touchscreen, the only way out is a full Hard Reset, and since the settings menu is not available, you have to do it through Recovery Mode, which is a special boot mode that works independently of the main system.

Turn off the phone completely to enter recovery mode. Then press Volume+ and Power at the same time. Hold them until the Mi logo appears, then release the power button, while continuing to keep volume. The menu uses volume buttons (up/down) and power buttons to select.

⚠️ Note: Recovery will delete all user data (photos, contacts, apps) and it will be impossible to recover it without a prior copy.

From the Recovery menu, select the language (English), then go to Wipe Data. Confirm the action by selecting Wipe All Data. Once the process is complete, select Back to Main Menu and then Reboot -> Reboot to System. The first download can take up to 10 minutes.

Diagnostics through ADB and computer

Advanced users can use a computer-assisted diagnostic method if debugging is enabled. USB (USB Debugging, you can control your phone from a PC. You need to install drivers. ADB Android platform SDK Platform Tools.

Connect your phone to your computer with a cable. Open the command prompt (CMD) in the ADB folder and type in the adb device command. If the device is displayed in the list, the connection is established. You can now use touch emulation.

With swipe, you can unlock your phone and go to settings to disable suspicious apps or back up. Touch coordinates can be found by turning on the "Show Touch" option on the screen (if the touchscreen is even partially working) or by selecting them experimentally.

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Use a mouse connected through the OTG-Adapter, if the phone supports USB Host, the mouse cursor will appear on the screen, which will allow you to control the smartphone without touchscreen.

Hardware malfunctions and repairs

If the software methods are powerless, there's a possibility of physical failure, and the most common cause is a shift of the display plume from the motherboard, which can happen after a fall, or just because of vibration when you're in active use.

The digitizer itself could also fail, and in modern smartphones, it is often combined with the matrix into a single module, and if you see purple spots, black ink, or cracks on the screen, replacement is inevitable.

• 🔍 Visual inspection: look for chips on the case in the plume area.
• 🔋 Battery bloating: Bloated battery can press on the plume from the inside, disrupting contact.
• 💧 Moisture: water protection indicators (LCI) inside SIM may turn red, indicating oxidation of contacts.

Replacing the screen yourself requires skills and tools (dryer, suckers, mediators). Replacing the display module with Xiaomi often requires re-painting the frame and using a special glue B-7000 to preserve moisture protection. If you are not confident in your abilities, you should contact an authorized service.