How to turn up the volume while calling on Xiaomi Redmi Note 7: all ways

Are you the owner of Xiaomi Redmi Note 7 and face the problem of quiet sound during phone conversations? Even at maximum volume, you can hardly hear, and in noisy places you have to put the phone to your ear with effort? This problem is familiar to many users of budget Xiaomi smartphones, where the manufacturer often saves on the quality of speakers.

In this article, we’ll look at 10 proven ways to increase the volume of a Redmi Note 7 speaker, from standard Android settings to hidden engineering menu features and third-party utilities, how to safely turn up the volume without risking damage, which apps actually work and which can cause harm, and explain why the sound can be quiet initially and when to contact a service center.

Important: All instructions are tailored to the Redmi Note 7 (codenamed lavender), and some methods may not work on other Xiaomi devices or require different options in the engineering menu.

1. Checking basic volume settings

Before you resort to radical measures, make sure that the problem is not in the banal settings. On the Redmi Note 7, the volume of the conversation is adjusted separately from the media sound and alarm clock.

When you call, press the volume buttons on the sidebar, and you should see a scale that says "Call Volume Level." If the scale is missing or doesn't respond to presses, it could indicate a software failure. Try restarting your phone.

• 🔊 Volume buttons: check their performance in other modes (music play, video).
• 📞 To Phone: Make sure you don’t accidentally activate the speaker icon in the call interface).
• 🔇 Silent Mode: Turn it off through the notification curtain or physical button (if there is one).

If the basic settings don't work, go to deeper methods, but first eliminate hardware problems: try calling from another phone to your Redmi Note 7 - perhaps a quiet sound in only one direction (your microphone or speaker).

2. Cleaning the conversational speaker from dust and dirt

One of the most common causes of silent sound is contamination of the speaker. On the Redmi Note 7, the speaker is located at the top of the screen (near the front camera), and over time, it gets dust, hair and even skin particles, which reduces the volume by 30-50%.

For cleaning, you will need:

• 🧼 Soft toothbrush (new or clean)
• 💨 Compressed air container (optional)
• 📱 Scotch or tape (for fixing the phone)

Step-by-step:

1. Turn off the phone and lock it up with the screen.
2. Carefully, without pressing, brush the speaker along the grille (not across!).
3. Use compressed air from a distance of 10-15 cm in short presses (no more than 2 seconds!).
4. Check the sound after the phone is turned on.

💡

Do not use wet wipes, alcohol or sharp objects (needles, toothpicks) - this can damage the speaker membrane or protective mesh.

If the volume has not changed after cleaning, the problem lies deeper - in the settings of the software or hardware malfunction.

3.Use of engineering menu to increase volume

The Redmi Note 7, like most Xiaomi smartphones, has a hidden engineering menu where you can manually adjust the settings of the speakers, a method that requires caution, as incorrect settings can lead to audio distortion or damage to the speaker.

How to open the engineering menu:

1. Open the Phone app.
2. Enter the combination: ##36446337## (or #4636## for the alternative menu).
3. Select the Hardware Testing option → Audio.

In the Audio menu, you are interested in the following options:

Make sure your phone is over 50% charged |

Record the initial values of the parameters |

Do not exceed 150 for Handset Max Vol|

Reboot your phone after the changes-->

Note: setting the Handset Max Vol above 150 can cause sound distortion and overheating of the speaker. On the Redmi Note 7, the optimal balance between volume and quality is 140-145.

When you change the settings, restart the phone and check the volume. If the sound gets worse (wheezing, distortion), return the original values.

4. Volume-boosting apps: What works on MIUI

If standard methods didn't work, you can use third-party apps. However, on the Redmi Note 7 with MIUI firmware, many audio amplification tools are blocked by the system because of security policies. We tested 15 apps and selected the 3 most effective ones:

• 🔊 Volume Booster GOODEV — louden 20-30% It works by overlaying a sound driver.
• 🎧 Precise Volume – allows precise volume settings in 1% increments (useful for high volumes) MIUI, where the standard scale is too rough).
• 🛠️ SoundAssistant (from Samsung, but compatible with Xiaomi) – adds separate regulators for the conversational speaker and headphones.

How to install and configure:

1. Download. APK-file from the official website of the developer (not from third-party sources!).
2. In MIUI settings, allow installation from unknown sources: Settings → Applications → Special Rights → Installation of unknown applications.
3. After installation, open the application and activate the amplification mode for Call Volume (calling volume).

⚠️ Attention: Volume-boosting applications can shorten the life of the speaker. Do not use them all the time - only when it is really necessary (for example, in noisy places).

5. Update firmware and reset settings

If the silent sound comes on suddenly, it may be a software failure. On the Redmi Note 7, this often happens after updating MIUI or installing custom firmware.

• 🔄 Update to the latest version MIUI (through settings → The phone. → Updating the system).
• ⚙️ Resetting sound settings (without data loss): Settings → Sound and vibration → Resetting settings.
• 📱 Hard Reset is a last resort if other methods have not worked!

How to run Hard Reset on Redmi Note 7:

1. Turn off the phone.
2. Press the Power button + Volume Up for 10-15 seconds at the same time.
3. From the Recovery menu, select Wipe Data → Wipe All Data.
4. Confirm the action and wait for the reboot.

After reset, check the volume before data recovery – this will help determine if there was a problem in settings or in the application conflict.

💡

If a quiet sound appeared after the update MIUI, Try to retrace the previous version via Fastboot. 4PDA model-themed.

6. Checking for hardware malfunctions

If none of the software methods worked, the problem could be hardware. The Redmi Note 7 is most likely to have the following malfunctions:

• 🔊 Damage to the conversational speaker – the membrane may break with time or mechanical exposure.
• 📶 Bad contact plume speaker - after falls or impacts.
• 💧 Contact oxidation – if the phone is caught in rain or in high humidity conditions.
• 🔋 Sound chip malfunction – rare but requires motherboard replacement.

How to diagnose a hardware problem:

1. Connect headphones – if they sound normal, the problem is in the speaker or its connection.
2. Try calling through speakerphone – if the sound is loud, the speaker is faulty.
3. Check if the sound is distorted at maximum volume (wheezing, crackling) is a sign of damage to the membrane.

If you suspect a hardware malfunction, you should contact a service center: the average cost of replacing a speaker with a Redmi Note 7 is 800-1500 rubles (depending on the region), self-repair without experience can damage the plume or other components.

7. Alternative solutions: headphones and Bluetooth

If you can not increase the volume of the speaker, consider alternative ways of making calls:

• 🎧 Wired headphones with a microphone – even budget models (such as Xiaomi Basic) give a clearer sound than the built-in speaker.
• 📶 Bluetooth headset – any model with profile support will be suitable HFP (Xiaomi Mi True Wireless Earphones and Redmi AirDots).
• 🔊 Loud communication - activated by a button during the call.
• 📱 VoIP applications (WhatsApp, Telegram, Viber) – often provide better sound quality than standard calls.

For the Redmi Note 7, we recommend Xiaomi Hybrid Pro HD headphones — they have a built-in audio amplifier and suppress noise well, which is especially important in loud places. If you talk on the phone often, this will be a better investment than trying to “overclock” the built-in speaker.

8. firmware modification (for experienced users)

If you are ready to take radical measures and have experience with custom firmware, you can consider the following options:

• 📱 Installation of a custom core (e.g., FrancoKernel) with improved sound subsystem.
• 🔧 Modification of the file mixer_paths.xml — Requires root rights and syntax knowledge XML.
• 🔄 Flashing on LineageOS or Pixel Experience – these firmwares often have more flexible sound settings.

Example of modification mixer_paths.xml:

<path name="handset-mic">


<ctl name="RX1 Digital Volume" value="84" />




<ctl name="RX2 Digital Volume" value="84" />




</path>

The value can be increased to 90-95, but this requires testing, as it can cause distortions across devices.

💡

Before modifying the firmware, make a full backup via TWRP. On the Redmi Note 7, TWRP version 3.3.1-1220 is suitable for this.

⚠️ Attention: Incorrect modification of system files can lead to a breeze (complete inoperability) of the phone. 4PDA XDA-Developers, which has ready-made solutions for the Redmi Note 7.

FAQ: Frequent questions about volume on Redmi Note 7