Why is the screen sensitivity on the Redmi Note 8 Pro disappointing?
Xiaomi Redmi Note 8 Pro with its 6.53-inch IPS-The 60Hz display and refresh rate remain a popular choice among users who value price-performance balance, but even such a time-tested smartphone can have issues with touchscreen sensitivity, from casual touches to input delays. The reasons lie in both software failures and in the physical features of the device.
Sensor malfunctions are often associated with wear and tear on the screen, moisture coming under the screen, or conflicts after a MIUI update. But 80 percent of the time, you can solve the problem without visiting a service center, either by adjusting the system or calibrating correctly, and in this article, we'll look at all the available methods, from standard settings to hidden functions of the engineering menu.
It's important to consider that the Redmi Note 8 Pro has a multi-touch sensor up to 10 touches, but its real responsiveness depends on the firmware. For example, after upgrading to MIUI 14, some users reported an increase in typing delay, which is not a screen defect, but a feature of optimizing power consumption.
Methods of checking the current sensitivity of the screen
Before you start setting up, you need to evaluate the actual state of the sensor, and you don't need any special applications, you need the built-in MIUI tools and a simple test.
The fastest method is to open Settings → About Phone → MIUI version and tap the word "Kernel Version" several times, which will open a hidden CTS test menu where you can check the screen's response to touch. Alternatively, use the code ##4636## (for some firmware versions) and select "Sensor Testing".
- 📱 Visual test: Run your finger all over the screen -- lines should be flat, without tearing. If the trajectory is shaking, it's a sign of calibration problems.
- ⏱️ Latency test: Quickly alternately press different areas of the display. Latency over 100 ms is considered critical.
- 👆 Multi-touch test: At the same time, touch the screen with 3-5 fingers. If some of the touches do not register, you need to reconfigure the screen.
If the test reveals dead zones (areas that do not respond to touch), the problem may be hardware, such as detachment of the sensor plume, in which case the settings are necessary, and you better contact the service.
Sensitivity settings through standard MIUI parameters
The manufacturer has provided basic options for adjusting the responsiveness of the screen, which do not offer the flexibility of the engineering menu, but are suitable for most users.
Go to Settings → Display → Additional settings → Sensor sensitivity. There are three modes available here:
| Regime. | Description | Recommendations |
|---|---|---|
| Standard. | Balance between accuracy and speed of reaction | Suitable for most tasks |
| Tall. | Increased response speed, but false positives are possible | Best for games (PUBG, Call of Duty) |
| Low. | Minimizes casual touches, but increases delay | Useful when used with wet hands |
For games, it is recommended to turn on the High Sensitivity mode, but note that this can lead to a faster battery discharge.If you notice spontaneous taps (for example, when holding a smartphone), try to return the standard settings.
⚠️ Warning: After the sensitivity changes, restart the device. Some parameters are only applied after the reboot, especially if you have previously calibrated through the engineering menu.
Close all active applications
Check the battery power (minimum 30%)
Make sure there is no moisture or dirt on the screen
Make a backup copy of settings (optional)-->
Screen calibration through the engineering menu (for power users)
If standard settings don't work, you can manually calibrate the sensor through an engineering menu, a method that requires caution, as incorrect actions can cause the display to malfunction.
To open the engineering menu, enter the code in the "Phone" application:
##36446337##Then select Touch Panel Test or TP Calibration (depending on the firmware version). Follow the instructions on the screen - you usually need to alternately click on the emerging crosses.
- 🔧 Important: Don't interrupt the calibration process. If the screen goes out or the device reboots, you'll have to repeat the procedure again.
- 📊 Result: After calibration, check the screen response in games and apps. If the problem persists, you may need to reset to factory settings.
On the Redmi Note 8 Pro with MIUI 12.5 firmware and later, the engineering menu can be blocked, in which case use the alternative code ##4636## and select "Equipment Testing".
What to do if the engineering menu is not opened?
Software solutions: applications for fine-tuning the sensor
If the built-in MIUI tools don't work, you can use third-party utilities to adjust sensitivity in increments of up to 1%, and also test multi-touch.
Top.-3 tested applications:
- 🛠️ Touchscreen Calibration: A simple tool for sensor calibration. Supports saving profiles of settings.
- 🎮 Game Touch Booster: Optimizes screen response specifically for gaming. Reduces latency by 20-30%.
- 📊 Touchscreen Test: Tests uniformity of reaction across the display area, useful for detecting "dead zones".
Before installing third-party apps, check that they are compatible with your version of MIUI. Some utilities require root rights, which may void the warranty. Also note that after updating the firmware, the application settings may reset.
⚠️ Note: Sensor calibration applications may conflict with system services MIUI. If after using them, the screen began to glittle, reset the settings in Settings. → Annexes → Application management → [Name of utility] → Warehouse → Clear the data.
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If after setting the sensitivity in games appeared "ghost" touches (false presses), try to disable the function "Smart assistant" in the settings MIUI. It sometimes conflicts with optimizations for games.
Hardware causes of low sensitivity and their elimination
The problem isn't always software, but physical factors also affect how the sensor works.
- 🛡️ Protective glass or film: Cheap, low-transparency protections can block up to 30 percent of touches. Use labeled glass "9H" and not more than 0.3 mm thick.
- 💧 Moisture under the screen: If the smartphone fell into water or was operated at high humidity, the contacts of the plume could oxidize.
- 🔌 Damaged plume: Common cause after falls, symptoms: part of the screen doesn't respond, or sensitivity floats".
To diagnose hardware problems, do the following:
- Remove the protective glass and check the screen reaction without it.
- Wipe the display with an alcohol napkin (at least 70% alcohol) - sometimes greasy traces interfere with accurate recognition of touches.
- Connect your smartphone to your PC and check if artifacts appear when you control your mouse through ADB.
If the problem only appears in certain areas of the screen (e.g., the edges), it is almost always a hardware defect, and the service center will fix it in 1-2 hours by replacing the touch module.
Frequent Sensitivity Errors and How to Avoid Them
Many users are making sensor problems worse by following questionable advice from the Internet, and here are some of the most common mistakes:
| Mistake. | Effects of consequences | The right decision |
|---|---|---|
| Using fastboot to reset calibration | This can cause complete sensor failure. | Calibrate only through the engineering menu or applications |
| Installation of custom cores for "acceleration" of the screen | Unstable operation of the system, overheating | Use only official firmware |
| Frequent change of sensitivity modes | Wear of the sensor layer, incorrect gestures | Choose one optimal mode and stick to it |
Another common problem is ignoring MIUI updates. Newer firmware versions often fix sensor delay bugs. For example, MIUI 13.0.4 for the Redmi Note 8 Pro optimized navigation gesture recognition, which reduced lags by 15-20%.
⚠️ Note: Do not use applications that promise to “overclock” the sensor to 120 Hz or 240 Hz. Redmi Note 8 Pro hardware supports only 60 Hz, and such utilities only overload the processor without real effect.
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Regularly cleaning the screen with alcohol wipes and using high-quality protective glass prevents 60% of sensitivity problems.