How to increase the volume of the speaker on Xiaomi Redmi Note 7: 7 working ways

Owners of the Xiaomi Redmi Note 7 often face the problem of quiet sound during calls. Even at maximum volume, it can be difficult to hear in noisy environments. The reasons can lie in both the software limitations of MIUI and the hardware features of the model. In this article, we will discuss all possible ways to increase the volume of the conversational speaker, from standard settings to hidden functions of the engineering menu.

It's important to understand that the speaker on the Redmi Note 7 is physically weaker than the main multimedia, which is a design feature of most smartphones. However, software methods can make the most of it. We tested all of the methods described below on MIUI 10-14 firmware and ensure that they work, provided that the instructions are followed correctly.

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 Note 7, the volume of calls is adjusted separately from the multimedia sound.

Open the Settings menu → Sound and vibration. Check here:

• 🔊 Call volume -- move the slider to the right, and on some firmware, this is called "Call volume».
• 📞 Sound amplification – turn on the option if it is available (appears on some versions) MIUI post-update).
• 🚫 Don’t disturb – make sure the mode is off or doesn’t block the sound of calls.

Also worth checking is the speaker's physical condition: a clogged grille or damaged membrane can significantly reduce the volume, carefully clean the speaker's opening with a soft brush (such as a toothbrush) or compressed air.

⚠️ Warning: Do not use sharp objects to clean the speaker, it can damage the membrane and permanently disable the speaker.

2.Use of the Engineering Menu (MTK Engineer Mode)

The Redmi Note 7 is built on the Qualcomm Snapdragon 660 platform, but even with such devices, an engineering menu with advanced audio settings is available, a method that requires caution, as incorrect parameters can degrade the sound quality.

To open the engineering menu:

1. Open the Phone app.
2. Enter the combination: ##36446337## (code may not work on newer versions of MIUI).
3. If the code doesn’t work, try an alternative method: ##4636## → go to the Phone Information tab → click on Network Selection 5-7 times until the menu opens.

In the engineering menu, find the Hardware Testing → Audio → Normal Mode section.

• 🔊 Max Vol - maximum volume (values from 0 to 160, standard - 128-140).
• 🎛️ Type – Select Sph (Speak Speaker).
• 🔄 Level - level of gain (we recommend increasing gradually, in steps 5-10).

⚠️ Note: Setting values above 150 can cause sound distortion and overload of the speaker. If there is a wheezing or crackling after the changes, return the settings to the standard settings.

Write down the current parameter values|Do not increase the volume by more than 20% at a time.|Check the sound after each change.|Reset the settings if there are distortions-->

3. Sound amplification applications

If standard methods don't work, you can use third-party utilities, which are software amplifier-like, but some require root rights.

The best apps for Redmi Note 7:

To install ViPER4Android on Redmi Note 7, you will need:

1. Get root rights (for example, through Magisk).
2. Install the application and drivers from the official topography on XDA.
3. In ViPER4Android settings, activate Master Limiter and increase Pre-Amp to +3-5 dB.

Volume Booster|Precision Volume|ViPER4Android|Sound Booster|No-->

4. Update firmware and reset settings

Sometimes the problem with quiet sound is due to software bugs. Xiaomi regularly releases updates that correct such errors.

Go to Settings → About Phone → System Update. If a new version of MIUI is available, install it. Pay special attention to updates marked "Sound Correction" or "Audio Optimization."

If the update doesn’t help, reset the sound settings:

1. Open Settings → Applications → Application Management.
2. Find the phone app and clear its cache.
3. Reset the device.

In extreme cases, you can make a complete reset to factory settings (Settings → Additional → Recovery and Reset), but before that, be sure to save important data.

5. Hardware methods (for advanced users)

If the software methods fail, the problem may be in the hardware. On the Redmi Note 7, the speaker is located at the top of the case and can move away from the board or get clogged with dust over time.

What you can do on your own:

• 🔧 Reconnect the speaker plume -- if the speaker started to work quieter after the fall, maybe the contact left.
• 🧹 Cleaning the speaker with alcohol - moisten the cotton swab in isopropyl alcohol (90%+) And you can wipe the speaker grille carefully!
• 🔊 Replacement of speaker – if the membrane is damaged, a new speaker will be required (Article for Redmi Note 7: MDY11-EM1). The cost of the detail is about 300-500 rubles.

⚠️ Warning: Disassembly of the phone will void warranty. If your Redmi Note 7 is still warranty, contact Xiaomi service center with a claim for bad sound - under the law on consumer protection, you are required to repair the defect or replace the device free of charge.

To replace the speaker will need:

• Plastic mediator or guitar mediator.
• The PH00 cross screwdriver.
• Dryer for softening of glue (temperature not higher than 80 ° C).
• New speaker (check article compatibility!).

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Before disassembling, take a picture of the location of all the plumes and screws - this will help to properly assemble the phone back. Use a magnetic screw mat to avoid losing them.

6. Alternative solutions: Headset and Bluetooth

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

Wired headset:

• 🎧 Connect the headphones with the microphone through the 3.5 mm jack, and the sound will be much louder.
• 🔊 Use headphones with active noise cancellation (for example, Xiaomi Hybrid Pro) – they automatically amplify the voice of the interlocutor.

Bluetooth headset:

• 📶 Connect Bluetooth headphones or mono headset (e.g. Xiaomi Mi True Wireless Earbuds).
• 🔋 Make sure the headset is charged – with a low charge, the sound can become quieter.

External speaker:

• 📢 Use a portable speaker with Bluetooth support or 3.5mm input.
• 🔗 Some speakers (e.g. Xiaomi Mi Portable Speaker) have Voice Amplification mode for calls.

You can also turn on speaker mode during a conversation, and the sound will go through the main (multimedia) speaker, which is more powerful than the conversational one. To do this, during the call, click on the speaker icon in the Phone application interface.

7. Checking for hardware malfunctions

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

For diagnosis, you can use the test mode:

1. Enter the phone code ##6484# (Manual Test Mode)
2. Select Receiver Test – if the sound in the test is quiet, the problem is hardware.

If you are not confident in your abilities, it is better to contact the service center. The average cost of diagnosis is 500-1000 rubles, replacement of the speaker is 1500-2500 rubles (depending on the region).

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If a quiet sound appears after a phone drop or moisture hits, self-repair can exacerbate the problem.

FAQ: Frequent questions about the sound on the Redmi Note 7