You picked up your Xiaomi, but the screen suddenly stopped responding to touch? This problem can occur on both newer models (Xiaomi 14, Redmi Note 13) and older devices (POCO F3, Mi 11). Causes range from software failures to physical damage to the display. In this article, we will examine all possible scenarios, from basic checks to complex firmware manipulation.
It is important to immediately determine whether the sensor is completely silent or partially reacting (for example, only in certain areas of the screen), this will help narrow the range of possible malfunctions. Also note whether the problem was preceded by a drop in the phone, moisture or installing new software.
If you are not sure of your technical skills, some methods (such as disassembling the case or flashing) are better left to the service center, but most of the reasons can be solved yourself - just follow our instructions.
Basic diagnosis: exclude obvious causes
Before you start a complex manipulation, check out a few key points. Often the problem lies in the little things that are overlooked:
- 🔋 Battery charge: If the charge level is below 5%, the phone can turn off the sensor to save energy.Plug the charger and wait 10-15 minutes.
- 🧤 Protective film or case: thick or substandard accessories can block the sensitivity of the screen.
- 💧 Moisture or dirt: even microscopic dust particles under glass can disrupt the sensor.
- 🔄 Reboot: Press the power button for 10-15 seconds to force the device to restart. MIUI.
If the sensor still doesn’t work after this, move on to the next section, and pay special attention to charging checks: some Xiaomi models (such as the Redmi 9A) can “hang” at a discharge below 3%, simulating a screen malfunction.
2. Software failures: resetting settings and safe mode
About 40% of sensor failures are caused by software errors, starting with a safe mode check that disables all third-party applications:
- Press the power button before the off menu appears.
- Keep your finger on the option to turn off (or turn off power) until a request to go to Safe Mode appears.
- Confirm the action and wait for the reboot.
If the sensor is running in Safe Mode, one of the installed applications is to blame. Uninstall recently added programs or reset to factory settings via Settings → About Phone → Reset.
☑️ Preparation for resetting settings
⚠️ Attention: on models with MIUI 14 and later reset via the settings menu may require you to enter a password from your Mi Account. If you forgot it, use an alternative method - Wipe Data in Fastboot mode (described below).
3. Hardware malfunctions: what to check first
If the software methods didn't work, the problem is probably hardware, and let's look at the typical iron-clad causes and the ways in which they're diagnosed:
| Reason. | Signs. | Decision |
|---|---|---|
| Detachment of the display plume | The screen flickers, reacts partially or does not work after a fall | Disassembly and connection of the plume (requires skills) |
| Damage to the sensory layer | Cracks are visible, but the image is displayed | Replace the Touch Bar or the entire display module |
| Oxidation of contacts | The problem arose after getting moisture | Cleaning with alcohol or replacing the plume |
| Failure of the sensor controller | The screen does not respond fully, but the image is | Replacement of the motherboard or controller chip |
To check the plume yourself, you'll need to disassemble your phone. On Xiaomi models with a non-removable battery (such as the Xiaomi 13T), it's harder to do this -- you'll have to use plastic mediators to keep the battery from damaging. If you're not sure about yourself, you'd better go to the service.
How to check the plume without disassembly?
4. Fastboot flashing: when necessary
If the sensor doesn't work even in the Recovery menu, but the phone turns on and displays the image, flashing through Fastboot mode will help.
- 📱 The device is determined by the computer (check through Device Manager).
- 🔧 You have the original. USB-cable (not all cables support data transmission).
- 💻 The Mi Flash Tool is installed and ADB.
Instructions for firmware:
- Download the official firmware for your model from the MIUI Downloads website (choose the Fastboot version).
- Unpack the archive in a folder without Cyrillic characters.
- Connect the phone to the PC, holding Volume Down + Power to log in to Fastboot.
- Launch the Mi Flash Tool, select the firmware folder and press Flash.
It takes 5-10 minutes. After flashing, the phone automatically restarts. If the sensor still doesn't work, it's definitely hardware.
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Disable the antivirus before the firmware – it can block Mi Flash Tool files as potentially dangerous.
5. Alternative ways to control the telephone
If the screen is not responding, but the phone is on, you can temporarily control it through:
- 🖱️ OTG-mouse: plug in USB-mouse-adapter OTG. The cursor will appear on the screen and you will be able to open applications.
- 📱 Remote management: Use applications like TeamViewer QuickSupport (you need to pre-installe and configure).
- 🔊 Voice Assistant: Activate Google Assistant with the “OK, Google” voice command (works if enabled in settings).
For models that support Mi Share (such as Xiaomi 12 Pro), you can try transferring files to another phone via Settings → Connection and Sharing → Mi Share.
6.When to contact the service: signs of serious breakdowns
There are situations where self-repair is not possible or advisable.
- 💥 The screen crashed and the sensor stopped working partially (for example, only the top or bottom of the sensor does not respond).
- 🔥 The phone overheats, makes extraneous sounds or does not turn on after a fall.
- 🔧 You have tried to refashion the device, but the problem remains.
- 📉 Diagnosis through Mi PC Suite shows hardware component errors.
The cost of repair depends on the model. For example, replacing the display module with the Redmi Note 12 will cost 5-7 thousand rubles, and Xiaomi 13 Ultra – 15-20 thousand rubles. In official Xiaomi services, there is a warranty for replaced parts (usually 6 months).
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If the phone is warranty, do not disassemble it yourself - this will void warranty obligations.
7.Prevention: How to avoid sensor problems in the future
To minimize the risk of repeated failures, follow these guidelines:
- 🛡️ Use high-quality protective glass (for example, tempered glass). 9H) and covers with shock-absorbing inserts.
- 🚫 Avoid extreme temperatures: Do not leave your phone in the sun or near heaters.
- 🔄 Update regularly MIUI — In new versions, errors related to the operation of the sensor are corrected.
- 💧 If the phone is wet, don't turn it on right away.Drop it with a napkin, put it in rice or silica gel for 24 hours.
In the models with AMOLED-Xiaomi 14, Mix Fold 3: Avoid prolonged pressure on the display, which can damage the matrix.