“Don’t close the speaker area” on Redmi Note 8: how to remove the inscription forever

The “Don’t close the speaker area”** on the Xiaomi Redmi Note 8 screen appears when the system fixes an obstacle in front of the top speaker — whether it’s a finger, a case or even dust — a feature designed to protect the device from overheating and distortion of sound, but often annoys users, especially if it’s triggered falsely, such as when talking on the phone in a horizontal position or while listening to music through external speakers.

In this article, we’ll look at all the working ways to disable warnings, from standard MIUI settings to hidden commands via ADB. You’ll learn why the system reacts so aggressively to the speaker’s closure, which Redmi models are susceptible to this problem (spoiler: not just Note 8), and how to avoid side effects like sound loss or microphone failures.

Why is the inscription appearing and when can it be ignored?

The warning is activated by the proximity sensor, which in the Redmi Note 8 is located next to the top speaker, and its main task is to turn off the screen when you hold the phone to your ear. However, in MIUI, this sensor is also used to monitor the speaker's overlap.

• 🔥 Overheat the body – especially with prolonged playback at high volume.
• 🎵 Distorted – due to resonance in a confined space (for example, if the phone is lying down speaker).
• 📵 Damage the speaker membrane - at physical pressure on the lattice.

But the sensor often works falsely.

• 📱 Using the phone in a case with high sides.
• 🖐️ Holding the device horizontally (for example, to watch a video) when the palm accidentally closes the speaker.
• 🧴 Infection of dust or moisture in the sensor area.
• 🔄 Update MIUI, After that, the algorithm for determining obstacles became more sensitive.

⚠️ Note: If the inscription appears for no apparent reason (the phone is lying on the table, the speaker is not closed), this may indicate a malfunction of the proximity sensor. In this case, turning off the warning will only mask the problem, and the sensor itself will stop working during calls (the screen will not go out in the ear).

Method 1: Disconnect via MIUI settings (without root)

The easiest method is to use built-in options, and unfortunately, in the latest versions of MIUI (12.5+), the direct warning setting is hidden, but it can be activated through a hidden developer menu.

Instructions:

1. Open the Settings. → The phone.
2. Click 7 times on the MIUI version until the notification “You became a developer” appears.
3. Return to the main settings menu and go to Additional → For developers.
4. Find the option to Disable the closed speaker warning (in some firmwares it may be called Ignore speaker obstruction).
5. Activate the switch and restart the phone.

If you don’t have this option, try an alternative route:

1. In For Developers, enable Debugging by USB.
2. Connect your phone to your PC and execute the command: adb shell settings put global speaker_obstruction_warning 0
3. Reset the device.

⚠️ Warning: After the warning is disabled ADB don't update MIUI through OTA — The system can reset. Use this method only if you're willing to repeat the procedure after each update.

Method 2: Editing a configuration file (without root)

This method runs on firmware up to MIUI 13 and doesn't require superuser rights. We'll edit the build.prop file, which is responsible for system settings.

Step-by-step:

1. Install a file manager with access to system folders (for example, FX File Explorer or Solid Explorer).
2. Open the /system/build.prop path (you may need to provide access to the root directory).
3. Find a line: ro.config.speaker_obstruction_warning=True and replace true with false.
4. Save the file and restart the phone.

If the line is missing, add it to the end of the file:

ro.config.speaker_obstruction_warning=false

Method 3: Using Magisk (for root users)

If your Redmi Note 8 has an unlocked bootloader and Magisk is installed, you can use a special module to turn off the warning, which is the most reliable method, since changes are made at the kernel level.

Instructions:

1. Download Disable Speaker Obstruction Warning (available on XDA Developers).
2. Install it through Magisk Manager (Modules → Install from storage).
3. Reboot the phone.

Advantages of the method:

• 🔄 Works after updates MIUI.
• 🛡️ It does not affect the stability of the system.
• 🔧 Allows you to return the alert at any time (deleting the module).

💡

Before installing the Magisk module, back up the current firmware via TWRP. This will help restore the phone if you experience sound problems after making changes.

What to do if the sound is gone after the warning is turned off

In rare cases, after manipulating the speaker settings, the sound may disappear completely or become quieter, which is because the system continues to "think" that the speaker is closed, and limits the output power.

Step 1: Reset the sound settings

1. Go to Settings. → Sound and vibration.
2. Click on the three dots in the top right corner and select Reset Settings.

Step 2: Clear the media cache

1. Open Settings → Applications → Application Management.
2. Find Media Storage and Bluetooth, then clear the cache for both.

Step 3: Check the integrity of the speaker

If the sound does not return, perform a hardware test:

1. In the phone app, type the code: ##4636##
2. Select Equipment Testing → Audio.
3. Test both speakers (top and bottom) if one doesn't work, it's a hardware problem.

💡

If the warning is quieter after the alert is turned off, check the settings Additional → Special Sound Effects in MIUI. It is possible that the system automatically activated Safe Sound mode, limiting volume.

Alternative solutions: covers, films and physical protection

If you don’t want to interfere with your phone’s settings, but the label continues to annoy, consider physical ways to fix the problem:

• 📱 Cases with a notch under the speaker: For example, models from Spigen or Ringke have special cutouts that prevent the grille from closing.
• 🧴 Stickers: Thin silicone pads (thickness 0.5-1 mm), which are glued around the speaker and do not allow the fingers or surface to completely block it.
• 🔊 External speakers: Using Bluetooth speakers or headphones automatically turns off internal speakers and no warning appears.
• 🧹 Sensor cleaning: Sometimes it is enough to wipe the area around the speaker with an alcohol wipe - dust or greasy traces can knock down the proximity sensor.

If you often hold your phone horizontally (for example, for games), try to learn to hold it so that the palm does not close the speaker.

• 🎮 Support stands (e.g. PopSocket).
• 🖥️ The “Game Space” mode** in MIUI — It optimizes the location of the controls so that the fingers do not touch the top of the screen.

FAQ: Frequent questions about the warning on the Redmi Note 8