Spontaneously pressing buttons on Xiaomi Redmi Note during a call: 7 reasons and solutions

You're on the phone, and Xiaomi Redmi Note suddenly starts to open apps, return to the home screen or even complete a call? This problem is familiar to many owners of smartphones in the Redmi Note series — from Redmi Note 4 to Redmi Note 12. Most often, "ghost" touches occur during phone conversations, when the ear or cheek is pressed against the screen.

In 80% of cases, a faulty touch screen or software failure is to blame, but sometimes the cause lies deeper in hardware malfunctions. In this article, we will examine all the possible reasons why the Xiaomi Redmi Note itself presses buttons during a call, and give step-by-step instructions for fixing the problem, from simple settings to repairs, and you will learn how to distinguish a software failure from a screen breakage and when to contact the service center.

1.Why buttons are pressed during the call: the main reasons

Spontaneous touches on Xiaomi Redmi Note during a conversation are usually associated with one of 7 reasons:

• 🔧 Incorrect sensor calibration – after updating or resetting the settings, the screen can “forget” touch boundaries.
• 📱 Pocket mode enabled – the screen lock function in your pocket sometimes works incorrectly.
• 🛠️ Damage to the sensory layer – microcracks or detachment of the plume after falling.
• 🔄 Application conflict – some programs (especially those with overlay rights) can intercept touches.
• 📲 Firmware failure MIUI — bugs in certain versions of the shell (for example, MIUI 12.5. MIUI 14).
• 🔋 Overheating of the processor – with long calls, the smartphone can overheat, which leads to false positives.
• 🧲 The effect of a magnetic field is rare, but occurs when using magnet covers or wireless charging.

The most common reason is that the sensor doesn't calibrate after the upgrade, for example, after switching from MIUI 11 to MIUI 13, many Redmi Note 9 and Redmi Note 10 users have experienced a screen that starts "phantomly" pressing buttons when the face approaches, due to a change in the touch processing algorithms in new firmware versions.

⚠️ Warning: If the problem occurs after a phone drop or moisture is injected, do not try to calibrate the screen yourself - this can aggravate the damage to the plume.

2. How to check if it is a software failure or hardware breakdown

Before you start repairing, you need to determine whether the problem is due to software or hardware.

1. Test in Safe Mode Reboot your smartphone in Safe Mode (hold the power button → long tap on "Stop" → "Safe Mode"). If the buttons are not pressed in this mode, the third-party app is to blame.
2. Enter the code ##6484## → select Touch Test. If ghost dots appear on the screen without you touching, there is a problem with the sensor or plume.
3. Remove the case and repeat the call. Sometimes magnets or metal inserts in the cases affect the sensor.

If all tests have a problem, it's likely that a hardware defect is to blame, such as damage to the touch layer, the plume, or the motherboard, and if everything is working normally in safe mode, look for the cause in the software or applications.

3. Software solutions: settings and calibration

In most cases, the problem can be solved without repair.

3.1. Disabling Pocket Mode

Pocket mode should lock the screen when you touch it in your pocket, but sometimes it doesn't work properly.

1. Go to Settings → Screen → Pocket mode.
2. Turn off the slider.
3. Reboot the phone.

Calibration of the sensor through the engineering menu

If the screen reacts to ghost touches, try recalibrating it:

1. Enter the code ##6484## (on some models #2664##).
2. Choose Touch Screen Test or TP Calibration.
3. Follow the instructions on the screen (usually click on the crosses in the corners).

Resetting the screen settings

If the calibration does not help, reset the screen settings to factory:

1. Go to Settings → System → Resetting settings.
2. Select Reset screen settings (not a full reset!).
3. Confirm the action.

After the reset, check if the problem persists. If so, move on to the next step.

Update or rollback of firmware

Some versions of MIUI have touch processing bugs, for example, MIUI 12.5.4 for the Redmi Note 9 Pro had a problem with false sensor alerts when calling.

• 🔄 Update the firmware to the latest version in Settings → The phone. → Updating the system.
• 🔙 If the problem has occurred after the update, roll back to the previous version via Fastboot (instruction below).

4. Hardware causes and what to do with them

If the software methods didn't work, the problem is probably hardware.

The most common hardware problem is that the plume is detached, especially after falls. For example, in the Redmi Note 8 Pro, the sensor plume is not securely attached, and over time the contacts become oxidized. If you notice that the problem is aggravated by pressing the bottom of the screen, it is likely that the plume is to blame.

⚠️ Note: If after the fall, the screen began to “float” (the image twitches when pressed), do not try to disassemble the phone yourself - in 90% of cases this leads to a break in the plume.

5. Temporary solutions if repair is not possible

If you can not yet take the phone to the service, you can use temporary measures:

• 📵 Use a headset – connect wireless or wired headphones so you don’t touch the screen.
• 🔒 Lock the screen before the call – press the power button to turn off the display while you talk.
• 🛡️ Install a locking app like Touch Blocker or Screen Off and Lock.
• 📱 Turn off the sensor during a call – some firmwares have the option to turn off the sensor when calling (look at Settings). → Special facilities).

Another temporary option is to reduce the sensitivity of the sensor.

1. Install the Touchscreen Repair app from Google Play.
2. Select the Low Sensitivity mode.
3. Reboot the phone.

💡

If the screen reacts to moisture (for example, after rain), put the phone in a bag with silica gel for 12 hours.

6. How to avoid problems in the future

To minimize the risk of reappearance of ghostly touches, follow these guidelines:

• 🛡️ Use quality cases – avoid cheap silicone cases that can press on the screen.
• 🔄 Regularly update the firmware in new versions MIUI Often fix sensor bugs.
• 🚫 Do not install dubious apps, especially those that request overlay rights (Display over other apps).
• 📱 Avoid overheating – Do not use your phone while charging for long calls.
• 🔧 Calibrate the screen periodically – just do it every 3-6 months.

If you drop your phone a lot, consider installing a tempered glass with an oleophobic coating that not only protects against scratches, but also reduces false sensor alerts when you touch your cheek.

💡

The most common reason for spontaneously pressing Redmi Note is the lack of sensor calibration after the MIUI update. Always check the screen after installing a new firmware!

7. When to contact the service center

If none of these methods worked, it's time to get in touch with the experts, and here are some signs that the problem is serious.

• 🔧 The screen responds to touches even when turned off (when charging).
• 💥 On the display appeared vertical or horizontal stripes.
• 🔥 The phone is overheating even with short calls.
• 📉 The sensor stopped responding to touch completely.

The cost of repair depends on the model and type of breakdown:

• Redmi Note 4/5 — sensor-replacement ~1 500–2 500 ₽;
• Redmi Note 8/9 — plume-up ~1 800–3 000 ₽;
• Redmi Note 10/11 — screen-replacement ~4 000–6 000 ₽.

When choosing a service, give preference to official Xiaomi partners or trusted workshops with a guarantee.Be sure to back up the data before repairing - sometimes a complete reset is required when replacing the screen.

Frequently asked questions