How to turn on the second speaker Xiaomi Redmi Note 10 Pro: 5 working ways

Owners of the Xiaomi Redmi Note 10 Pro often face the problem of a smartphone playing sound through only one speaker, although the hardware supports the stereo system. The reasons can be due to software failures of MIUI, and incorrect user settings. In this article, we will discuss all possible methods of activating the second speaker, from basic checks to hidden engineering commands.

It is important to understand that the Redmi Note 10 Pro is equipped with two speakers: the main (bottom) and the secondary (top, aka "talk"). In normal mode, they work synchronously when playing media, but sometimes the upper speaker turns off due to software errors or physical damage. Before you start settings, make sure that the problem is not hardware - check the sound during the call (the top speaker should work as the main speaker).

If you've tried to reboot your phone and reset your audio settings, but the result hasn't changed, don't rush to bring your device to the service. 80 percent of the time, you can solve the problem yourself using standard MIUI tools or hidden Android features. Next, step-by-step instructions with explanations for each method.

1. Check basic sound settings in MIUI

Before you delve into the technical manipulations, make sure that the problem is not in the banal settings. Xiaomi often hides key options in non-obvious menus, so go through this checklist:

Make sure the volume regulator is not at a minimum.|Check if the "Do Not Disturb" mode is activated"|Turn off Bluetooth headphones or speakers|Reboot your smartphone (hold the power button for 10 seconds)-->

If the second speaker doesn't work after this, go to the audio profile settings. MIUI has a separate menu for controlling stereo sound:

1. Open the Settings. → Sound and vibration.
2. Select Sound Quality and Effects (in some versions of MIUI – Additional Sound Customizations).
3. Activate the Stereo Speaker switch or the Sound Amplifier (name depends on the firmware version).
4. Restart the device to apply the changes.

Attention! Some firmware may not have Stereodynamics. This doesn't mean the second speaker is faulty, it's just the manufacturer has hidden the setting, so move on to the next method.

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If the menu does not have the item "Stere speakers", try to turn on the developer mode (7 times click on "Version"). MIUI" in the phone settings) and check the "Developers" section for sound options.

Activation via the engineering menu (codes ##)

The engineering menu is a hidden section of Android where you can test hardware components, including speakers. The Redmi Note 10 Pro is a universal access code, but beware: the wrong settings here can lead to crashes.

To open the engineering menu:

1. Launch the Phone app.
2. Enter the combination: ##36446337## (or alternative code ##4636###).
3. Go to the Hardware Testing → Audio tab.
4. Select Loud Speaker (bottom speaker) and Receiver (top speaker) alternately to test their performance.

If the Receiver does not make sound when testing, the problem may be:

• 🔊 Dynamic pollution (dust, moisture)
• 🔧 Damage to plume or contacts
• 📱 Software Disconnection through Firmware

Critical note: on some firmware for the Redmi Note 10 Pro (e.g. MIUI 13.0.4), the engineering menu is only available after unlocking the bootloader. If you're not ready for it, skip this method.

3. Resetting the sound settings to factory

If the second speaker stopped working after updating the system or installing third-party applications, the fault may be a conflict of settings, in which case the reset of the audio profile without losing data will help.

Follow the following steps:

1. Open Settings → Applications → Application Management.
2. Find the Sound Settings app (or Audio Settings) and select it.
3. Press Warehouse. → Clear the data.
4. Reboot the phone.

After the reboot, check the speakers. If the problem persists, try resetting the network settings (this can help if the conflict is caused by Bluetooth or Wi-Fi modules):

1. Go to Settings. → SIM-maps and mobile networks → Resetting network settings.
2. Confirm the action and wait for the process to be completed.

Phone reboot|Checking settings MIUI|Engineering menu|Resetting sound settings|Another way.-->

Warning: Resetting the network will delete all stored Wi-Fi passwords and associated Bluetooth devices.

4. Update or roll back firmware

Errors in the work of speakers are often associated with bugs of specific versions of MIUI. For example, in the firmware MIUI 12.5.3 for the Redmi Note 10 Pro was a massive bug with stereo sound, which was fixed only in 12.5.7.

Go to Settings → About Phone → MIUI Version. If you have an update, install it. If the problem has occurred after the last update, consider rolling back:

For firmware rollback:

1. Download the desired version of MIUI from the official Xiaomi website (choose Redmi Note 10 Pro with the codename sweet).
2. Rename the file to update.zip and place it in the root folder of the phone.
3. Open Settings → About Phone → System Update, click on the three dots in the upper right corner and select Select a firmware file.

⚠️ Note: Firmware rollbacks may result in data loss if you do not back up. Also note that after rollbacks, some applications (such as banking) may require re-authorization.

5. Checking for hardware damage

If the software didn't work, the problem could be physical malfunctions.

• 🔍 External inspection: Light a flashlight into the top speaker grille - if dust or moisture is visible, cleaning is required.
• 🎧 Headphone test: Connect wired headphones, and if they sound normal, the problem is the phone's speakers.
• 📱 Microphone check: Record the voice message. If there's any interference in the recording, the common plume of the speaker and microphone may have been damaged.

Typical hardware reasons:

• 💧 Liquid intake (even small amounts can oxidize contacts).
• 🚀 Falling phone (more often the upper speaker suffers due to fragile mounting).
• ⚡ Static electricity (rare but can disable a sound controller).

If you suspect a physical breakdown, but do not want to contact the service, you can try a temporary solution:

1. Use an external Bluetooth speaker or column.
2. Activate Monoaudio mode in special features settings (this will redirect all sound to the working speaker).

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If the phone was in a wet environment (such as a bathroom), do not turn it on for at least 24 hours. Even if it works, moisture could damage the contacts of the speaker, and the problem will manifest later.

6.Alternative methods: ADB and third-party utilities

For advanced users, there are ways to enable a second speaker through ADB (Android Debug Bridge) or specialized applications, which require an unlocked bootloader or root rights.

Method 1: ADB-commands for forced stereo sound

1. Install ADB Tools on your PC.
2. Connect the phone to your computer and allow debugging over USB.
3. Enter in command line: adb shell settings put global stereo_speaker true
4. Reset the device.

Method 2: Appendix SoundAbout

The tool allows you to manually reassign sound streams. Download it from Google Play and:

1. Choose Media Audio (Multimedia).
2. Check the boxes between Speaker (Bottom) and Earpiece (Top).
3. Save the settings and test the sound.

⚠️ Attention: Use ADB or root applications may violate the warranty and lead to unstable operation of the system. → Additionally. → Backup and reset.

Frequently asked questions