Touch screen sensitivity issues on Xiaomi smartphones are one of the most common user complaints: the screen can react poorly to touch, skip swipes, freeze when you type or work with a delay, most often it is not a hardware failure, but a software failure that can be fixed yourself, 80% of the time it is due to incorrect settings, outdated firmware or contamination of the display.
But how do you tell a software problem from a hardware problem? If the sensor stops working after a drop or moisture hits, that's a mechanical damage, and only the service center will help. And if the screen gets worse gradually, periodically "gluts" or behaves unstable, most likely it's the MIUI settings, drivers or background processes. In this article, we'll look at all the working methods, from basic to advanced, including hidden functions that are not even written in the official documentation.
Important: The methods are suitable for all modern Xiaomi, Redmi and POCO models based on MIUI 12-14 and HyperOS. If you have a device older than 2018 (for example, Redmi Note 5 or Mi A2), some menu items may differ.
1. Calibration of the touch screen through the engineering menu
The most effective way to get an accurate response from the screen is through software calibration, which is hidden in an engineering menu at Xiaomi that not all users know how to open, which takes 2-3 minutes and requires no root rights.
First, check if the screen is at least partially responsive to touch. If so, follow these steps:
- Open the Phone app and type the combination: ##6484## (for some models, ##3646633##)
- You'll be taken to Engineer Mode. Go to Touch Panel Test or TP Calibration.
- Press Calibrate and follow the instructions on the screen (usually touch the crosses in turn).
- After completion, restart the smartphone.
⚠️ Warning: If the screen gets worse after calibration (e.g., clicks are recorded in the wrong places), reset the settings via the same menu (Reset Calibration.
Screen cleaning and screening of safety glass
Pollution, greasy traces, or poor protective film can cause interference between the finger and the sensor, especially in models with a high-resolution sensor. AMOLED-screens (for example, Xiaomi 13 Pro or Redmi) K60), wherein the layer of oleophobic coating is thinner.
How to clean the screen correctly:
- 🧴 Use a microfiber wipe (such as from a glasses kit) and isopropyl alcohol 70% (non-ethyl!).
- 🚫 Do not use household chemicals, wet wipes or paper towels – they scratch the surface.
- 🔍 Check the edges of the screen: sometimes dust accumulates under the film, which prevents the sensor from acting on the edges of the screen.
If you use tempered glass, make sure it:
- ✅ Has an oleophobic coating (repels fat).
- ✅ No thicker than 0.33 mm - otherwise the sensitivity will deteriorate.
- ✅ Properly pasted (without bubbles and gaps).
💡 Xiaomi Mi 11 Ultra and Redmi Note 12 Pro+ The factory glass has a special layer for improved tactile return, and if you remove it, the sensitivity can drop by 15 to 20%.
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Before cleaning the screen, turn off the smartphone – so you will avoid accidental touches and failures in the sensor.
3. Optimization of MIUI settings for touchscreen
MIUI offers a few hidden options that affect screen responsiveness.They are often overlooked, but they can greatly improve the user experience.
Go to Settings → Display and check:
- 🔄 Screen refresh rate: set the maximum (90/120/144 Hz depending on the model. POCO F5 Xiaomi 14 Adaptive mode is available – it automatically adjusts the frequency for the task.
- 👆 Touch sensitivity: Turn on the option to Increase sensitivity (if any). On some firmware, it is hidden - activated via Settings. → Special facilities → Physical capabilities → Screen sensitivity.
- 🎯 “For Games” Mode: Even if you’re not a gamer, turn it on in Settings → Special facilities → It turns off the battery optimization for the sensor, which speeds up the response.
For HyperOS models (like the Xiaomi 14 Ultra), a new parameter has been added, Adaptive Tactile Recoil, which analyzes the force of pressing and adjusts the vibration to turn it on:
- Go to Settings → Sound and vibration → Vibration when touched.
- Choose Adaptive or Enhanced (if available).
Maximum refresh rate set |Games mode enabled |Games mode activated |Grow sensitivity |Cache cleared system interface application-->
4. Resetting cache and system application data
Sometimes sensor lags are caused by an overloaded cache of system processes, especially com.miui.home (launcher) and com.android.systemui (system interface). Clearing the cache will not delete your data, but can return smooth operation.
How to do this:
- Go to Settings → Applications → Application Management.
- Click on the three dots in the upper right corner and select Show System Processes.
- Find applications: System interface (com.android.systemui) MIUI launcher (com.miui.home) Google Play services (if you use GMS)
Warehouse → Clear the cache
Don't clear the data!
Reset the device.
⚠️ Warning: If the screen gets even worse after cleaning the cache, go back to the same settings and press Reset Preferences (for System Interface) to restore the standard gesture settings.
For advanced users: if the problem persists, try rolling back updates for the System Interface through Settings → Apps → three points → roll back updates. This is true for Xiaomi on Android 13/14, where sensor bugs sometimes appear after updates.
5. Update firmware and rollback to stable version
Touch screen bugs are often fixed in newer versions of MIUI or HyperOS. Check if your device is stuck on outdated firmware:
- Go to Settings → About the phone → System update.
- Click Check Updates and install the latest version.
- If the update is available but not installed, download it manually from en.miui.com (select Stable, not Developer!).
📌 How to log in to Recovery:
- Turn off your smartphone.
- Press the Power button + Volume up until the Mi logo appears.
- Select Install update.zip and specify the path to the downloaded file.
⚠️ Note: Firmware rollback will reset all data if you don't use it OTA-Package (update "over the air"). Pre-backup through Settings → The phone. → Backup.
Which Xiaomi models are more likely to suffer from sensor bugs?
6.Verification and optimization of background processes
Malware or heavy applications can overload the processor, which causes the system to fail to process touches, such as mining bots or advertising SDKs consume up to 30% of the CPU, leading to screen lag.
How to diagnose and correct:
- Install Malwarebytes or Dr.Web Light and scan the device.
- Check CPU consumption in Settings → Battery → Battery Use. If an application consumes >15% in the background, uninstall it.
- Turn off auto-run of unnecessary programs through Settings → Applications → Auto-run.
For models with 4-6 GB of RAM (for example, the Redmi Note 11 or POCO M4 Pro), it is useful to limit background processes:
- Turn on Settings → Battery → Power saving mode (but not Super-Economic – it reduces productivity).
- Activate MIUI Optimization in Settings → Special Opportunities → System Optimization.
📊 Below is a table with normal and critical resource consumption for different models:
| Model | Normal CPU consumption (background) | Critical CPU Consumption | Action. |
|---|---|---|---|
| Redmi 9/9A | <10% | >20% | Remove “heavy” applications |
| POCO X3/X4 | <15% | >25% | Clear the cache, check for viruses |
| Xiaomi 12/13 | <8% | >18% | Remove the firmware or reset the settings |
| Redmi Note 10–12 | <12% | >22% | Limit background processes |
7 Hardware methods: when software does not help
If none of the above methods worked, the problem may be:
- 🔌 Oxidation of sensor plume (often after moisture is ingested).
- 🔧 Wear of the touch layer (typical for devices older than 3-4 years).
- 🔋 Power controller malfunction (screen does not work well with low battery charge).
What you can do on your own:
- 🔨 Carefully disassemble the smartphone (if you have experience) and check if the sensor plume fits tightly with the motherboard.
- 🔋 Check the screen when the charger is connected, and if the sensor is working normally, the problem is the battery or the power controller.
- 📱 If the screen only responds to strong presses, the touch coating may be worn out, and then only replacing the display module will help.
⚠️ Note: On Xiaomi models with AMOLED-screens (e.g. Xiaomi) 13T or Redmi K50) Self-repair can damage the matrix.
💰 Cost of sensor replacement in service centers:
- Redmi Note Series: 3000–5,000 ₽
- Xiaomi 11/12/13: 8 000–12 000 ₽
- POCO F Series: 4,000–7,000 ₽
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If the sensor stopped working after a fall or impact, do not try to calibrate it programmatically, which can aggravate the problem.