How to increase the volume of the speaker when talking to Xiaomi: the Complete guide

The situation when you stop hearing someone during an important call is familiar to many smartphone owners, especially in low-end and mid-range devices, where audio codec performance can be limited by software, and if you're looking for a way to increase the volume of your speaker on an android when you talk to a shaomi, this article will be your comprehensive guide.

In modern smartphones Redmi and POCO, voice playback is handled by an overhead speaker, which also serves as a multimedia mono mode. Sometimes software failures or physical contamination prevent the sound wave from passing freely. We will examine both secure methods and deeper system settings available to advanced users.

It is worth noting that the maximum sound level is often limited to the firmware level to protect the user’s hearing and comply with the regulations of a particular country, but there are legal ways to circumvent these restrictions or simply correct errors that understate the actual volume of the device.

Basic audio profile settings in MIUI and HyperOS

The first step should always be to check the standard settings, as many users miss the obvious settings. There is a detailed equalizer in the shells of MIUI and the new HyperOS that affects the frequencies of the human voice. Go to Settings → Sound and vibration → Sound effects and make sure that the profile is not in Silence or Night mode.

Now, if you look at the Dolby Atmos feature, if it's available on your model, this surround sound algorithm can both improve speech intelligibility and, if you don't set it up correctly, make your voice quieter and "farther away." Try to switch the playback modes to find the optimal balance.

Also check the settings of the specific Phone app. Some firmware versions have a separate volume slider for calls that can be adjusted directly during a conversation with volume buttons, and if the slider is down, no system tricks will help.

Using an engineering menu to calibrate sound

The most effective way to turn up the volume of your Android speaker when speaking shaomi is to access the engineering menu, which is a hidden part of the system designed for testing equipment by engineers in the factory. To log in, open the Phone app and type in the code ##3646633#. If the code doesn't work, try ##6484##, as commands may differ from one global firmware version to another.

After you log in to the menu, you will need to find the Hardware Testing tab, then go to the Audio section. Here you will see a list of profiles: Normal (normal mode), Headset (earphones) and LoudSpeaker (loud speaker). To set up the conversational speaker, choose Normal mode and Mic (microphone) or Sph (Speaker Phone, speaker).

Inside the speaker settings (Sph), find Gain or Level. Here are levels from 0 to 158 (the numbers can vary). An increase of 10-15 units can add volume to the speaker's head. However, be very careful: too high a value can lead to wheezing or even failure of the speaker.

Physical cleaning and elimination of mechanical interference

Often the problem is not the software, but the banal contamination of the speaker's mesh. Dust, pile from pockets and skin fat create a dense membrane that blocks the sound wave. Use a soft toothbrush or a special sticky tape to clean, gently walking along the speaker's opening.

It is not recommended to use sharp objects such as needles or pins, as you risk piercing the speaker membrane, which will lead to irreversible decrease in sound quality or the appearance of cod. You can also use compressed air, but strictly at right angles and short "pitches" to avoid driving the dust deeper.

Check if you have a protective film or a glass with an overlapping cutout. Even a minimal displacement of the protective glass by 1-2 millimeters can cover part of the acoustic channel. Remove the accessory and check the volume without it - sometimes this solves the problem instantly.

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Use blue paint tape (scotch) to clean the speaker. It leaves no glue and pulls dust out of the mesh perfectly, unlike cotton swabs, which can push dirt deeper.

Third-party applications for sound amplification

If there is not enough regular funds, Google Play apps for audio correction software come to the rescue, and Precise Volume is the leader in this niche, which allows you to create detailed volume profiles for different use cases, including calls.

Another popular solution is the Volume Booster GOODEV, which works as a signal amplifier, programmatically increasing the amplitude of the sound wave, but using such applications requires caution: constant operation at limit values (more than 20-30% gain) can overheat the speaker coil.

It is important to note that third-party amplifiers can affect communication quality by adding noise or distorting the voice of the interlocutor, and it is recommended to use them only in extreme cases when other methods have not worked, and turn off immediately after the conversation is over.

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Third-party boosters are a temporary solution, and if the speaker is working but quiet, the problem is probably pollution or firmware settings, not power shortages.

Impact of updates and resetting settings

Sometimes, after updating the firmware MIUI or HyperOS, users notice a change in volume, which is due to the fact that new versions of drivers can calibrate audio devices differently. If the sound has become quieter after the update, it is worth checking whether the Mono-audio mode has been activated in special features.

In Settings → Advanced Settings → Special features → Hearing (or similar path) check the left-right channel balance. If the slider is side-shifted, this can affect the overall volume when talking, especially if you use a headset or speakerphone.

As a last resort, if the software failure is systemic, resetting all settings to factory settings can help. Be sure to back up the data before doing so. Reset will return all system gain to factory values, which often eliminates the strange sound bugs.

⚠️ Warning: Resetting will delete all your data, including contacts, photos and apps. Make sure you make a full backup to Xiaomi cloud or computer before starting the procedure.

Hardware malfunctions and repairs

If neither cleaning nor settings nor engineering menus have worked, there is a high probability of hardware failure. The speaker is a physical component that wears out over time. The membrane can lose elasticity, and the magnetic system can demagnetize, leading to a quiet and hoarse sound.

It’s also worth checking the plume that connects the lower board (where the main speaker is often soldered) to the motherboard. When the contacts fall or get moisture, they may oxidize or move away. In the Redmi Note and POCO X models, this is a common problem that requires disassembling the device.

In some cases, the "warm-up" of the dryer at a low temperature for 1-2 minutes helps, which can temporarily restore the elasticity of the membrane, but this is only a temporary measure before replacing the module.

⚠️ Warning: If your phone has been in contact with water, even if it is waterproof, do not try to dry it with a hairdryer or rice.Moisture inside the case can cause corrosion of the speaker contacts, and trying to turn the sound on at full volume can cause a short circuit.