How to reduce the sensitivity of the screen on Xiaomi Redmi 4X: from calibration to firmware

Xiaomi Redmi 4X (codename santoni) is one of the most popular budget smartphones of the brand, but over time, many users face the problem of excessive sensitivity of the screen. the sensor begins to react to false touches, spontaneously opens applications or scrolls pages, making use of the device extremely uncomfortable, the reasons can lie in wear of the display module, damage to the plume, incorrect settings MIUI or even factory defects.

In this article, we will discuss all the working ways to reduce the sensitivity of the screen — from standard system tools to manual editing through ADB and firmware replacements. Particular attention will be paid to the nuances associated with the Redmi 4X, because its hardware platform (Qualcomm Snapdragon 435) and the version of MIUI have specific limitations, if you notice that the screen responds to touch even through a protective glass or case, or touches are recorded with a delay — these methods will help to return the device to workability.

Reasons for the increased sensitivity of the screen on the Redmi 4X

Before we start setting up, it's important to understand why the sensor is not behaving properly. 80 percent of the time, the problem is hardware, but sometimes the software is to blame.

• 🔧 Display module wear: Over time, the touch layers lose accuracy, especially if the phone has often fallen or been operated in high humidity conditions.
• 📱 Trail damage: on Redmi 4X Screen plume is one of the most vulnerable spots, and even microcracks can cause ghostly touches.
• 🔄 Incorrect calibration: after the update MIUI or resetting the sensor calibration may be lost.
• 🛠️ Factory marriage: some santoni batches suffered from screen defects that manifested after 1-2 years of use.
• ⚡ Electrostatic interference: If the phone is lying near electromagnetic radiation sources (such as wireless charging), the sensor may falsely trigger.

On Redmi 4X, false touches are most often found at the bottom of the screen, because of the design of the touchscreen and the location of the plume, and if the problem is there, there's a high probability of a hardware defect, and otherwise, software adjustment will help.

⚠️ Attention: If the screen reacts to touch even when it is off (when connected to charging), it almost always indicates damage to the plume or sensor controller.

Method 1: Calibration of the sensor through the engineering menu

The easiest and safest method is to recalibrate the sensor through a hidden engineering menu, which requires no root rights and works on any version of MIUI.

Instructions:

1. Open the Phone app and enter the combination: ##6484##.
2. In the menu that appears, select Touch Screen Test.
3. Press Calibration and follow the instructions on the screen – usually touch multiple dots.
4. Once completed, restart the phone.

If the combination ##6484## doesn't work, try the alternative code: ##36446337## (for some versions of MIUI).

Charge your phone at least 50%

Make sure there are no greasy spots or moisture on the screen.

Remove the protective glass (if it is thicker than 0.3 mm)

Close all background applications

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After calibration, check the sensitivity in real conditions. If the problem persists, proceed to the next method.

Method 2: Configure sensitivity through Developer Options

Redmi 4X has hidden developer settings that allow you to manually adjust the sensor trigger threshold, which requires activation of the developer mode.

How to turn on Developer Options:

1. Go to Settings. → The phone.
2. Find the MIUI version and tap it 7 times in a row.
3. Enter a pattern lock or password if required.

Now, the main settings menu will be a section for developers.

1. Open the settings → Additional → for developers.
2. Scroll down and find Pointer location (or Debugging touches in Russian firmware).
3. Activate it - visual touch marks will appear on the screen.
4. Below, find the Touch Sensitivity setting and reduce it from 5 to 2-3.

It constantly interferes with the use of

Sometimes, in certain applications.

It was before, but it was after calibration.

I've never noticed a problem like this.

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If there is no Touch sensitivity, then your version of MIUI does not support this setting, in which case only the custom core firmware (more on this below) will help.

⚠️ Attention: A decrease in sensitivity below 2 may cause the sensor to stop responding to light touches.

Method 3: Using ADB to change sensor parameters

If standard methods don't work, you can manually change the sensor settings through the Android Debug Bridge (ADB), which requires connecting the phone to a computer and basic command line knowledge.

What you need:

• 💻 A computer with installed Xiaomi drivers and ADB.
• 🔌 USB-cable (preferably original).
• 📱 Included debugging by USB on the phone (Settings) → For developers → Debugging by USB).

Instructions:

1. Connect Redmi 4X to your computer and confirm the debugging permission on your phone.
2. Open the command prompt (or Terminal on macOS/Linux) and type:

adb shell


su




echo 3 > /sys/touchscreen/sensitivity

If the su command doesn't work, you don't have root rights, so try an alternative method:

adb shell settings put system touch.sensitivity 2

After you execute the commands, restart the phone. If the setting is not saved, then your firmware will block the changes - you will need to unlock the bootloader and install a custom Recovery.

Method 4: Install custom firmware with sensor settings

If none of the above methods worked, it remains to flash the device custom firmware with support for manual sensor tuning. 4X fit:

• 📱 LineageOS – has built-in calibration tools.
• 🔧 Pixel Experience – optimized for stable sensor performance.
• 🛠️ MIUI Pro (modified version) – adds advanced screen settings.

Firmware process:

1. Unlock the bootloader through Mi Unlock Tool (requires a Xiaomi account binding).
2. Install a custom TWRP recavator for santoni.
3. Download the right firmware (e.g. LineageOS 16 for Redmi 4X).
4. Sweat through TWRP, having previously made a backup.

⚠️ Attention: Custom software firmware resets all data and may result in a loss of warranty. at Redmi 4X With the unlocked bootloader also stop working services Google Pay and Widevine L1 (no HD Netflix).

Method 5: Hardware methods (replacement of screen or plume)

If the software didn't work, the problem is almost certainly hardware. The Redmi 4X most often fails:

• 📱 Display plume - wears out from frequent openings of the cover.
• 🔧 Sensor controller – overheated or oxidized.
• 🔄 Display module itself - loses accuracy after 2-3 years of use.

Cost of repair (for 2026):

• Replacement of the plume: ~800–1500 ₽.
• Replacement of the display module: ~2500–4000 ₽ (depending on the quality of the matrix).
• Controller repair: ~1000–2000 ₽.

If you decide to repair yourself, consider:

• 🛠️ For Redmi. 4X You need a special mediator to disconnect the plume - a regular plastic card can damage it.
• ⚡ When changing the screen, be sure to move the protective frame from the old display, otherwise the new one may not fit tightly.
• 🔋 Before disassembly completely discharge the battery (up to 0%) - this will reduce the risk of short circuit.

💡

Before changing the screen, check if the warm-up with a hair dryer (60-70°C) helps the plume area, sometimes temporarily restoring contact if the problem is oxidation.

Additional Tips to Reduce False Touches

In addition to the basic methods, there are several auxiliary techniques that can improve the situation:

• 📵 Turn off “Taking While Talking” in call settings – this will prevent accidental cheek pressing.
• 🔄 Reduce screen waiting time (Settings) → Display. → Sleep mode: up to 15 seconds, so the sensor will be less likely to activate in your pocket.
• 🛡️ Use a case with hard sides - it will prevent pressure on the screen.
• 🔋 Turn off Double Touch to Wake Up – This is one of the most common causes of false positives.

If you use a protective glass, make sure it:

• No more than 0.3 mm thick (thick glass impairs sensitivity).
• It has an oleophobic coating (prevents the slipping of the finger).
• Properly pasted – air bubbles can distort the sensor signal.

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On the Redmi 4X, false touches are often caused by incompatibility with cheap glass. Try removing the protection for a day and see if the problem persists.

FAQ: Frequent questions about Redmi screen sensitivity 4X