How to increase the volume of the speaker on Xiaomi Redmi Note 7: from standard settings to engineering menu

The Xiaomi Redmi Note 7 remains one of the brand’s most popular smartphones years after its release, thanks to its balanced specs and robust hardware base. However, many users experience quiet sound when making calls, listening to music or watching videos. The reasons can vary from the software limitations of MIUI to the physical wear of the speaker. In this article, we will examine all the working ways to increase the volume, including hidden settings, engineering menus and even hardware solutions.

It's important to understand that not all methods are equally safe. For example, changing parameters through an engineering menu or modifying system files can cause failures or loss of warranty. We marked risky steps with special warnings — read them carefully. Let's start with the easiest and safest ways, and then move on to the advanced ones.

1. Standard sound settings in MIUI

Before you go deep into the system, check the basic parameters. Often the problem is solved in just 2 clicks. Redmi Note 7 has several volume adjustments that many miss:

• 🔊 Separate volume control: in MIUI You can independently adjust the sound level for media, calls and alarms. Press the volume button, then tap the gear in the upper right corner of the screen.
• 🎵 Equalizer and Sound Effects: Go to Settings → Sound and vibration → Equator. Try to turn on the Bass or Rock preset, which can visually increase the volume by amplifying the low frequencies.
• 📞 Voice amplification during the call: in Settings → Special facilities → To improve sound, activate the voice enhancement option, which will help if the interlocutor is not able to hear.

If you've had a quiet sound after this manipulation, the problem goes deeper, and it could be the firmware limitations or the hardware limitations, so move on to the next section.

2. Engineering menu: hidden volume settings

The Engineering Menu (or Engineer Mode) is an Android service section where you can fine-tune hardware components, including speakers. On the Redmi Note 7, it is accessed through a special code. Attention: improper changes here can damage the speaker or microphone!

To get into the engineering menu:

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

And inside, you'll see some tabs with settings.

• 🔈 LoudSpeaker Mode – you can increase the maximum volume level for the main speaker. Try setting Level 5 or Level 6 (the default is usually Level 4).
• 🎤 Mic – If you have a problem with sound while calling, check the microphone levels (but don’t go above Level 4 or you’ll wheez).
• 📊 Max Vol is a maximum volume limiter. Set a value of 150 or 160 (standard 140).

Warning: If the speaker starts wheezing or distorting the sound after the changes, immediately return the standard values!

3. Cleaning the speaker: the physical causes of the quiet sound

Sometimes the problem is not the settings, but the banal pollution. The Redmi Note 7 speaker is located at the bottom of the body and easily clogged with dust, villi or particles from your pocket, which leads to muffled sound, especially at high frequencies.

How to clean the speaker:

• 🧹 Soft brush: Take a soft bristling toothbrush and walk gently through the speaker grille. Movements should be light, without pressing.
• 💨 Compressed air: A spray of compressed air (such as cleaning a keyboard) will help blow out dust. Keep the balloon vertical to keep liquid out.
• 🧲 Magnetic case: If you use a magnet case, make sure it doesn't close the speaker.

Do not use sharp objects (toothpicks, needles) - they can damage the speaker membrane! If the sound does not improve after cleaning, the problem may be wear and tear of the speaker or oxidation of the contacts.

Modification of firmware: changing system files

For high-end users willing to take risks, there is a way to turn up the volume by editing system files, which requires an unlocked bootloader and root rights, and backup data, and after such changes, the warranty on the phone is canceled!

Instructions for advanced:

1. Install a file manager with root support (such as Root Explorer).
2. Cross the path. /system/etc and find the file. mixer_paths.xml.
3. Copy it onto your computer and open it in a text editor (like Notepad++).
4. Find rows with RX1 Digital Volume, RX2 Digital Volume, or Speaker Volume, and increase the values by 10-20% (e.g., from 84 to 95).
5. Save the file, return it to /system/etc and restart the phone.

Example of variable parameters (exact values depend on the firmware version):

⚠️ Warning: If the phone starts to overheat after the changes, the speaker wheezes or artifacts of sound appear, immediately return the standard values.

5. Third-party applications for sound amplification

If you don't want to mess with your system files, you can use Google Play apps that run on top of standard settings and can turn up the volume by software-based audio processing.

• 🔊 Volume Booster: a simple booster with pre-set profiles for music, video and calls.
• 🎛️ Equalizer FX: Advanced equalizer with bass and high frequency enhancement. You can customize it to specific headphones.
• 📱 Precise Volume: allows you to adjust the volume more accurately (up to 100 steps instead of the standard 15.

Note that applications can't exceed the physical limitations of the speaker, and if the sound gets distorted or wheezed, reduce the gain, and some programs can drain the battery faster because of the constant processing of the sound.

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Before installing a sound booster, check for reviews about compatibility with MIUI. Some apps conflict with Xiaomi's proprietary shell and cause crashes.

Hardware solutions: replacement of speaker or amplifier

If the software methods didn't help, the problem could be the hardware. Redmi Note 7 most often fails:

• 🔇 Speaker: The membrane loses elasticity over time, especially if the phone has fallen or been exposed to moisture frequently.
• 🔌 Contacts speaker: oxidized or moved away from the board (a common problem after disassembling the phone).
• 🔊 Audio chip: burns out when short circuit or after firmware with errors.

Cost of repairs in service centers:

If you decide to change the speaker yourself, consider:

• 🛠️ On the Redmi Note 7 speaker soldered to the board, so you need a soldering iron and experience with microelectronics.
• 🔋 The battery of the phone is very fragile - with careless disassembly it is easy to pierce.
• 📦 Original speakers for Redmi Note 7 code-name 18040L-00016-01 (Check before buying).

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If the phone falls, or if it goes silent, it's a sure sign of hardware failure, and then the software is powerless.

7.Alternative methods: headphones, Bluetooth speakers and external amplifiers

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

• 🎧 Headphones with microphone: even inexpensive models (for example, Xiaomi Hybrid) will give a clearer and louder sound than the built-in speaker.
• 🔊 Bluetooth speaker: portable speakers like Xiaomi Mi Portable Speaker connect in seconds and provide powerful sound.
• 📱 External amplifier: Fiio is suitable for music lovers A1 Xiaomi HiFi Audio Enhancer – they amplify the sound without distortion.

If you want to talk loud, look for Bluetooth headsets with noise cancellation (such as the Xiaomi AirDots Pro), which not only amplify the sound, but also improve the quality of conversation in noisy places.

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