How to check the speaker on your Xiaomi phone: from the call test to the engineering menu

The speaker in Xiaomi smartphones is a small but critical component that is responsible for the voice of the interlocutor during calls, as well as the playback of alarms, notifications and system signals. If you notice that the interlocutor has become inaudible, the sound is distorted or completely lost, the problem may lie in this module.

Checking a speaker on Redmi, POCO or Mi doesn't require any special skills. You just need to know a few standard diagnostic methods, from a basic call test to a deep check through the engineering menu. In this article, we'll look at all the available methods, including those used by service centers. You'll also learn how to distinguish a software failure from a physical failure and when it's time to carry the phone for repair.

Important: If the speaker stopped working after the phone fell, moisture hit or disassembled on its own, it's likely that a module replacement will be needed, and in such cases, the diagnosis will only confirm the obvious, but if the problem is "on its own" the chances of a software solution are high.

1.A quick check through a test call

The easiest way to diagnose a phone is to call another phone and evaluate the sound quality, which doesn't require app installation or deep tuning, but helps identify obvious problems.

Take a second phone (like a friend or relative) and make a call from your Xiaomi.

• 🔊 Check the volume – even if at the maximum of the interlocutor is barely audible, the speaker is either clogged or faulty.
• 🎵 Assess the sound quality – wheezing, crackling or “gurgling” indicate damage to the speaker’s membrane.
• 🔄 Switch to speakerphone – if the sound through the main speaker is clear, the problem is precisely in the conversation module.

If you notice that the sound is missing periodically (i.e., not), it may indicate poor contact of the speaker plume, in which case a light tapping on the phone body next to the speaker helps - if the sound appears, the problem is mechanical.

2.Using the Integrated Sound Test (CIT)

All Xiaomi smartphones have a hidden CIT (Customer Inspection Test) menu where you can test the basic components, including speakers.

Launch instructions:

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. In the menu that appears, select Hardware Testing (may be called Hardware Testing).
4. Find the Audio section or the Sound.
5. Select Speaker Test and follow the instructions.

In this menu you can test:

• 📞 Speaker (if the sound is distorted or missing, the problem is confirmed).
• 🔈 Main dynamics (for quality comparison).
• 🎧 3.5mm connector (if you have one in your model).

Important! On some Xiaomi models (e.g. Redmi Note 10 Pro or POCO X3 Pro), the ##4636## combination may not work. In this case, use the alternative code: ##6484## or ##64663###.

3. Checking through the Engineering Menu (MTK/Qualcomm)

The engineering menu is the heart of a smartphone’s diagnostics, where you can check each component separately.

For MediaTek (MTK) processors:

##36446337##

For Qualcomm Snapdragon processors:

##4636## → Hardware Testing → Audio

In the engineering menu, you need the following sections:

• 🔊 Speaker – a test of the conversational speaker.
• 📱 Receiver – checking the microphone (to eliminate problems from the interlocutor).
• 🎵 Headset – Headphone test (if connected).

During the test, pay attention to the Impedance and Volume readings.

• Resistance: 8–32 Ohms (if 0 or ∞ is a chain break).
• Volume: 70-90 dB (below 60 dB – the speaker is inefficient).

4. Diagnostics with the help of third-party applications

If standard methods don't give a clear answer, you can use specialized applications that offer advanced tests and often identify problems that the built-in diagnostics miss.

Top.-3 Apps to check the speaker on Xiaomi:

How to use:

1. Install one of the applications and open it.
2. Select the Audio Test or Speaker Test section.
3. Follow the instructions on the screen (usually confirm if you hear the sound).
4. Pay attention to the graphs and digital indicators – they will show how much the speaker deviates from the norm.

💡

If the app shows that the speaker is working normally but the sound is still bad, try resetting the sound settings to factory settings. Go to Settings → Sound → Resetting the sound settings (not available on all models).

5. Physical injury check

If software tests show no problems, but the speaker is still not working, you should check the phone for mechanical damage.

Typical physical malfunctions:

• 💧 Moisture infestation – even if the phone hasn’t sunk, condensation or high humidity can oxidize the speaker’s contacts.
• 📱 Fall or impact – the speaker is attached to the board with thin wires that are easily detached when mechanically exposed.
• 🧹 Clogging with dust - over time, dirt accumulates in the grille, which worsens the sound.
• 🔌 Bad contact of the plume - if the speaker periodically "disappears", the problem may be in the departed connector.

How to view the speaker:

1. Take a flashlight and shine a speaker into the grille - if dust or debris is visible, gently clean it with a soft brush.
2. Try to push the area around the speaker a little bit (not the grille itself!) If the sound comes up, the contact problem is.
3. Check if the grille is swollen - this is a sign of moisture getting in.

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If the speaker stopped working after changing the screen or battery, there's a 90% chance the wizard forgot to plug the speaker plume back in, in which case you need to disassemble the phone and check the connection.

6. When to contact the service center

Not all problems with the speaker can be solved on their own, there are a number of signs in which you must consult a specialist:

⚠️ Attention, if the speaker starts to hiss or squeak high-frequency even when the phone is off, it's a sign of a short circuit on the board, and if you keep using the phone in this state, you can damage the audio chip and lose all of the sound.

Situations requiring repair:

• 🔧 The speaker doesn't work at all, and none of the tests show a reaction.
• 🔥 On the body near the speaker, traces of oxidation or burning are visible.
• 📉 After the fall, the sound became quiet and distorted (probably damaged membrane).
• 🔄 The sound disappears when the phone is tilted (problem with a plume or soldering).

The cost of replacing the speaker in Xiaomi varies from 500 to 2000 rubles depending on the model. on Redmi and POCO budget segment (for example, Redmi 9A or POCO M3) replacement will cost less than on flagships like Xiaomi 13 Ultra.

⚠️ If you choose to replace the speaker yourself, only buy original Xiaomi-branded parts. Cheap counterparts often have different resistance, leading to quick failure or deterioration of sound quality.

FAQ: Frequent questions about Xiaomi speakers