Why does the Redmi Note 9 Pro screen respond to random touch?
A sensitive touchscreen is one of the key advantages of Xiaomi smartphones, but sometimes it gets too nervous. Redmi Note 9 Pro owners often face a problem when the screen reacts to light touches, moisture on their hands or even when using protective film, which leads to accidental taps, opening apps or scrolling pages without your intention, and the reasons can range from factory settings MIUI to physical damage to the display.
In this article, we will discuss 5 proven ways to reduce the sensitivity of the screen on the Redmi Note 9 Pro β from standard settings to hidden firmware functions. All methods are tested on MIUI 12-14 versions and do not require root rights. Importantly, some parameters may differ depending on regional firmware (Global, China, EEA).
If you notice that the problem occurred after a phone drop or moisture hit, first check the integrity of the screen - in such cases, repairs may be necessary.
Method 1: Calibration of the sensor through a hidden menu
The Redmi Note 9 Pro has a hidden engineering menu where you can manually calibrate the touch screen, which helps if the screen becomes too sensitive after updating the firmware or resetting. Importantly, don't change the other options on this menu unnecessarily - it can disrupt the phone.
To open the calibration menu:
- Open the Phone app and enter the combination: ##6484##.
- The Manual Test Mode menu will appear on the screen (in some firmwares β CTS Test).
- Select Touch Screen Test or TP Calibration.
- Follow the instructions on the screen: usually you need to alternately click on the points that appear.
- Once completed, restart the phone.
If the sensitivity hasn't changed after calibration, try repeating the procedure or move on to the next method. Note: some versions of MIUI may have this menu blocked.
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Before calibration, remove the protective film and clean the screen with a dry wipe - dirt or air bubbles can distort the results.
Method 2: Configure "Protection against accidental touch"
MIUI has a built-in feature that ignores light touches on the screen, called Accidental Touch Protection, which can be turned off by default, and is especially useful if you often put your phone in your pocket or use it while walking.
To activate it:
- Go to Settings β Display.
- Scroll down and find the Additional Screen Settings section (in some firmwares β Advanced Settings).
- Choose Protection against Accidental Touches.
- Turn on the switch and set the reaction delay (recommended 0.5-1 seconds).
This function works on the principle of a filter: if the screen detects light touch (for example, when the phone is lying on the table), it ignores it, but when used actively, the delay can be noticeable - for example, when you quickly scrolle through the tape on social networks.
What to do if the option is not on the menu?
Method 3: Turn off gestures and navigate to navigation buttons
The gesture control in MIUI often conflicts with the sensitivity of the screen. If you use swipes to navigate (like swiping from the bottom to back up), the sensor can falsely fire when you touch the left side of the display. Switching to the classic navigation buttons (Back, Home, Recent) can solve the problem.
How to change the type of navigation:
- Open the Settings β Display.
- Select Full-screen Display (or Navigation Bar in older versions).
- Switch to Navigation button mode.
- Click More (three dots in the upper right corner) and select Additional Settings.
- Turn off the Swipe Sensitivity option (if any).
After switching, check if there are any false positives left. If the problem has gone away but you are uncomfortable using the buttons, try returning gestures but with a reduced swipe area (this is set up in the same menu).
Gestures | Navigation buttons |Floating panel |I don't know-->
Method 4: Adjusting sensitivity through "Developer settings"
The developer menu has advanced sensor settings that allow you to fine-tune the sensor, which requires activation of the developer mode, but does not affect the warranty. Be careful: changing some parameters can lead to unstable screen performance.
Instructions:
- Activate Developer Mode: Go to Settings β About Phone and 7 times click on the MIUI Version. You are a developer notification will appear.
- Return to the main Settings menu and open a new section Additional β Developer Settings.
- Scroll down to the Input block and find the settings: Show taps β turn on to see where the screen captures touch. Pointer location β displays the coordinates of touch (useful for diagnosis). Touch sensitivity or Minimum touch duration β here you can reduce sensitivity by increasing the value of the delay (for example, from 50 ms to 100 ms).
After the changes, restart your phone.
If your MIUI version doesnβt have a direct setting for sensitivity, try changing the Minimum touch size β increasing this value will make the screen ignore light touch.
Make a backup copy of the data|Remember the initial values of the parameters|Do not change other settings in this menu|Reboot your phone after the changes-->
Method 5: Reset screen settings to factory
If all previous methods failed, the cause could be a software failure in the display settings, in which case resetting the screen to factory values will help, this process does not affect user data (photos, applications), but will return all display settings to the state out of the box.
How to perform the reset:
- Go to Settings β Display.
- In the upper right corner, click on three dots and select Reset Settings (or Restore Default Settings).
- Confirm action. The phone will automatically restart.
In such cases:
- Contact Xiaomiβs authorized service center for diagnostics, and itβs cheaper to repair the sensor than it is to replace the entire display module.
- If the phone is warranty, do not try to disassemble it yourself - this will void the warranty obligations.
- Before visiting the service, make a backup of the data: when changing the screen, you may need to reset to factory settings.
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Check the screen in Safe Mode (hold the power button β Safe Mode) If the problem disappears, the third-party application (such as a launcher or optimizer) is to blame.
β οΈ Warning: Do not use the "sensor enhancement" apps from Google Play. Most of them either don't work or contain malicious code. MIUI Provide all the necessary tools to adjust sensitivity.