How to increase the volume of the speaker on Xiaomi Redmi 5 Plus: proven methods

Xiaomi Redmi 5 Plus is a popular smartphone, but many users face the problem of quiet conversational speaker during calls, which may be due to factory restrictions, wear of components or software settings. In this article, we will discuss all possible ways to increase volume, from basic settings to advanced methods using engineering menus and firmware modifications.

It is important to understand that low volume is not always associated with hardware problems, often due to the wrong parameters in the system or limitations set by the manufacturer. We will consider both safe methods (through standard settings) and riskier ones (through engineering menus and root access) so that you can choose the best option for your case.

1. Checking basic volume settings

Before you resort to complex manipulations, make sure that the problem is not in the elementary settings. On the Redmi 5 Plus, there are several parameters that can affect the volume of the speaker:

• 🔊 Volume control during the call - check if it is set to a minimum. During the conversation, press the volume buttons up/down to adjust the level.
• 📵 Do Not Disturb Mode - if it's activated, the sound can automatically mute. → Sound and vibration → Don't disturb.
• 🔄 Sound Profile - Some shells MIUI have separate profiles for different situations (house, work, street) Make sure the right one is chosen.

It's also worth checking if Adaptive Sound is activated in the special features settings. It automatically adjusts volume based on ambient noise, but sometimes it doesn't work properly. Path: Settings → Special Features → Audio → Adaptive Sound.

2. Cleaning dynamics from dust and debris

One of the most common reasons for the volume down is because of the speaker pollution. On the Redmi 5 Plus, the speaker is at the top of the screen, and over time, it can get dust, pile, or even moisture into its grille, which physically blocks the sound waves, making the sound quieter.

For cleaning:

1. Take a soft toothbrush with a short pile.
2. Carefully, without pressing, run the speaker in the direction from the screen (so as not to drive the garbage deeper).
3. Use a dryer at minimum power (cold air!) at a distance of 10-15 cm to blow out the dust.

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Do not use sharp objects (toothpicks, needles) to clean the speaker - this can damage the membrane or mesh. If the contamination is severe, you should contact a service center.

If the volume has not recovered after cleaning, the problem may be in the software settings or hardware wear, in which case proceed to the following methods.

3.Use of the engineering menu to adjust volume

Engineering Mode is a hidden settings section where you can manually adjust the sound parameters, including the volume of the speaker, which requires caution, as incorrect changes can lead to failures.

To get into the engineering menu on Redmi 5 Plus:

1. Open the phone app.
2. Enter the code ##36446337## (or alternative #4636###).
3. Select Hardware Testing → Audio → Loudspeaker Mode.

In this section, you will see several sliders responsible for different types of sound:

• 🔈 Sph - volume of microphone.
• 📞 Sph2 — volume of the speaker (our case).
• 🎵 Media - Multimedia volume.
• 🔔 Ring - volume of the call.

Carefully increase the Sph2 value by 5-10 units (maximum 160). Do not exceed 180 - this can cause audio distortion or damage to the speaker! After changes, press "Set" and restart the phone.

4. Installation of third-party applications to amplify sound

If standard methods don't work, you can use specialized applications, and they work on two principles:

1. Software amplification – increase volume at the OS level (for example, Volume Booster or Equalizer FX).
2. Equators optimize the frequency range by making sound clearer (e.g., Music Volume EQ).

The following applications are suitable for Redmi 5 Plus:

The easiest option is the Volume Booster GOODEV.

1. Launch the application and give access to the sound settings.
2. Go to the "Speaker" tab.
3. Move the slider 10-15% above the standard level.
4. Save the settings and restart the phone.

Make sure the application is compatible with MIUI|Read the reviews about job stability|Make a backup copy of the sound settings|Do not install more than one amplifier at the same time.-->

⚠️ Attention: Excessive amplification of sound through applications can lead to distortion of the voice of the interlocutor or overheating of the speaker. If after increasing the volume there are wheezing or crackling, reduce the level of the voice.

5. Modification of system files (for power users only)

If none of the previous methods worked, you can try changing the system files responsible for limiting volume, which requires root rights and can lead to unstable phone operation if executed incorrectly.

The Redmi 5 Plus will require:

1. Get root access (for example, through Magisk).
2. Install a file manager with root support (such as Root Explorer or Solid Explorer).
3. Cross the path: /system/etc/ and find the file mixer_paths.xml (or mixer_paths_qrd_skuh.xml firmware).
4. Make a backup of the file!
5. Open the file in the text editor and find the lines with the parameters: <path name="handset-mic"> <ctl name="RX1 Digital Volume" value="84" /> </path> Increase the value from 84 to 90-95 (no more than 100!).
6. Save the changes, set 644 (rw-r--r---) rights, and restart the phone.

⚠️ Attention: Incorrect editing mixer_paths.xml This can cause a complete loss of sound or the phone to freeze while booting.If there are problems after the changes, return the original file from the backup.

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Changing system files is an extreme method, and if you're not sure what you're doing, you should see a specialist or use software to amplify the sound.

6. Checking for hardware malfunctions

If all software methods have been tried, but the volume of the speaker is low, the problem may be hardware.

• 🔌 Oxidation of contacts speaker - due to moisture or condensate.
• 🔊 Wearing the membrane dynamics - over time it loses elasticity.
• 📱 Problems with the plume - a departed or damaged connector.
• 🔋 Weak signal from the audio chip – requires diagnosis at the chip level.

For diagnosis:

1. Connect headphones – if they sound normal, the problem is in the speaker or its connection.
2. Try recording a voice memo – if the recording is quiet, the microphone may be faulty (which indirectly affects the volume settings).
3. Check if the sound appears in the speaker when playing music (sometimes the conversational and multimedia speakers are combined).

If you suspect a hardware malfunction, it is better to contact the service center.The average cost of replacing a conversational speaker with a Redmi 5 Plus is from 800 to 1500 rubles (depending on the region and workshop).

7. Alternative solutions: headset and external speakers

If you can not increase the volume of the built-in speaker, consider alternative ways:

• 🎧 Bluetooth headset – modern models (e.g. Xiaomi AirDots or Redmi Buds) provide excellent audibility.
• 🔊 External speaker with microphone – connects to 3.5 mm or Bluetooth.
• 📱 Hand-held mode is not always convenient, but allows you to hear the interlocutor clearly.
• 🔄 Call forwarding – set up to transfer calls to another phone with better speaker.

To connect the Bluetooth headset:

1. Activate Bluetooth in settings (Settings → Bluetooth).
2. Enable pairing mode on the headset (usually holding the power button).
3. Select the device in the list of available and confirm the connection.
4. In the call settings (Settings → Sound and vibration → Audio devices), select the headset as the main device.

⚠️ WARNING: When using external speakers or headset, keep an eye on the volume level – long listening at maximum volume (over 80 dB) can harm hearing.

FAQ: Frequent Volume Update Questions on Redmi 5 Plus