How to check the speaker on your Xiaomi phone: from simple tests to engineering codes

The speaker in Xiaomi’s smartphone is one of the most vulnerable components: it suffers from moisture, mechanical damage and even banal wear. If you notice that the sound has become quieter, wheezing or completely disappearing, do not rush to carry the phone to the service. In 80% of cases, the problem can be diagnosed on its own in 10 minutes using standard tools. MIUI or hidden service functions.

This article will help you understand how to check the speaker on Xiaomi (including Redmi models, POCO, Black Shark, no special equipment:

• 🔊 Basic sound tests through built-in applications
• 📱 Diagnostics through the engineering menu (including hidden codes)
• 🛠️ Checking hardware damage (oxidation, connectors)
• 🎧 Difference between Dynamic Failure and Programmatic Failures

Important: if the phone was in water or fell, before checking the speaker be sure to dry the device for at least 24 hours - moisture can distort the test results. 12T Pro or Redmi Note 11 Pro+) stereo sound is used – check both speakers separately.

1. Quick verification through standard applications

Start with the simplest tests that don’t require you to install additional software. These methods work on all Xiaomi smartphones regardless of the version. MIUI.

Method 1: Test call

• 📞 Call from another phone to the device being checked.
• 🔊 Turn on speakerphone and appreciate the sound: it should be clear, without wheezing and interruption.
• 🔄 Change roles – call from the checked phone and listen to the sound through the speaker of the interlocutor.

Method 2: Reproduction of media files

• 🎵 Open the Music or YouTube app and turn on a bass track (e.g. electronic music).
• 📊 Increase volume to maximum – if the sound is distorted or disappears at high volume, it may indicate damage to the speaker.
• 🔀 Switch between speaker and headphones (via notification panel) to compare sound quality.

Call the phone in hands-free mode

Play the track with bass at maximum volume

Compare sound through speaker and headphones

Check the sound of alarms and notifications-->

Method 3: Systemic sounds

Make sure the problem is not in a specific application:

• ⏰ Set an alarm and check its sound.
• 📳 Turn on the Do Not Disturb mode, then turn it off - the signal should sound.
• 🔋 Connect the charger - when connected, a characteristic sound is heard.

⚠️ Warning: If sound is only in headphones or via Bluetooth, but is not in the speaker, the problem is precisely in the hardware. If the sound is lost in all output devices (speaker, headphones, Bluetooth), the software or audio chip is to blame.

2. Diagnostics through the engineering menu (#4636##)

Hidden Engineering Menu allows you to test the speaker at a low level, bypassing the limitations MIUI. This method works on most Xiaomi models, except for some new devices (such as Xiaomi 13 Ultra), where access to the menu can be blocked.

How to open the engineering menu:

1. Open the Phone app.
2. Enter the code ##4636## (some firmware may require ##6484##).
3. Select Audio (or Sound)

Dynamics testing:

• 🔊 In the Audio section, find the Speaker Test option (or similar one).
• 📊 Press Start Test – the system will play test sounds through the speaker.
• 🎧 If you have a Headset Test option, check it out (to avoid audio chip problems).

⚠️ Warning: Do not change the settings in the engineering menu unless you understand their purpose! Incorrect settings can lead to loss of sound or overheating of the processor. → Volume can make a sound too quiet or loud.

3. Verification through analysis applications

If standard methods fail, use specialized utilities that allow you to test the speaker at different frequencies and identify hidden defects.

Top.-3 diagnostics:

• 📱 Phone Doctor Plus – checks the speaker, microphone, vibration and other components. MIUI 12+.
• 🔊 Speaker Test – plays test signals at different frequencies (20 Hz to 20 kHz).
• 🛠️ TestM – comprehensive diagnostics, including stereo test (for models with two speakers).

How to use:

1. Install one of the apps from Google Play.
2. Run the speaker test (usually the Audio or Speaker section).
3. Follow the instructions on the screen – the application will play sounds of different tones.
4. If the sound is missing or distorted at a certain frequency, the speaker is faulty.

Phone Doctor Plus

Speaker Test

TestM

Other

Not using.-->

Example of Testing in Speaker Test:

• 🔹 Low Frequency Test (20-250 Hz) - checks bass. If the sound "bubbles" or is missing, the speaker membrane is damaged.
• 🔹 Mid Frequency Test (250-4000 Hz) - checks the average frequencies. Wheezing or crackling indicates dust intrusion.
• 🔹 High Frequency Test (4000–20,000 Hz) – checks the squeak.No sound can mean contact breaks.

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If the app shows an error "Audio device not found", it could mean an audio driver problem. Try restarting the phone or resetting the audio settings in Settings → Sound. → Resetting settings.

4. Visual examination of the speaker for physical injuries

If software tests show no problems, but the sound is still bad, check the speaker for mechanical damage, especially after falls or contact with water.

What to look for:

• 💧 Traces of oxidation - green or white plaque on the contacts of the speaker (indicates moisture ingress).
• 🔧 Detachment of the membrane - if the speaker "crunches" when pressed, the membrane has moved away from the body.
• 🕳️ Dust or debris in the speaker grille (can be gently removed with a soft brush).
• 🔌 Damaged contacts – black dots or burnt areas on the plume.

How to remove the phone for inspection:

1. Turn off the device and remove it. SIM-map.
2. Heat the back cover with a hairdryer (60–70°C) to soften the glue.
3. Carefully tuck the lid with a plastic spatula (start at the corner next to the power button).
4. Unplug the battery plume, then find the speaker (usually located at the bottom next to the charging connector).

⚠️ Attention: Disassembling a Xiaomi phone without experience can lead to damage to the plumes or loss of tightness.If you are not confident in their abilities, contact the service. IP53/IP68 (for example, Xiaomi 13 Pro or Redmi Note 12 Pro+) after disassembly, water protection is lost!

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If the speaker is externally intact but the sound is missing, the problem may lie in the audio chip or connection plume, in which case diagnosis is required using a multimeter or replacement of components.

5. the difference between hardware malfunction and software

Users often confuse a speaker breakdown with software failures, and here's how to distinguish them:

How to fix software failures:

• 🔄 Reboot your phone (sometimes helps even with a “hang” sound).
• 📱 Reset the sound settings: Settings → Sound. → Three dots (menu) → Resetting settings.
• 🔧 Update. MIUI Update or back off if the problem has occurred after the update.
• 🛠️ Perform reset to factory settings (pre-make a backup!).

If there is a hardware problem:

• 💰 Replacement of the speaker in the service costs from 800 to 2500 rubles (depending on the model).
• 🔧 In some models (for example, POCO X3 Pro) speaker soldered to board - soldering required.
• 📦 If the phone is warranty, do not disassemble it yourself - this will void the warranty.

6. Frequent causes of speaker breakdowns on Xiaomi and how to avoid them

Knowing the typical causes of malfunctions, you can extend the life of your smartphone’s dynamics.

Top.-5 cause of failure:

1. Getting moisture – even if the phone has protection IP53, How to avoid: after contact with water immediately turn off the device and dry it in rice or silica gel for at least 24 hours.
2. Mechanical damage - falling on a hard surface can displace the speaker's membrane. How to avoid: Use a case with reinforced angles (for example, Spigen Tough Armor).
3. Dust clogging - over time, dust accumulates in the grille of the speaker, which leads to wheezing. How to avoid: once a month blow the speaker with compressed air (a canister for engineering).
4. Sound overload: Long-term music playback at maximum volume deforms the membrane. How to avoid: do not exceed 80% volume.
5. Oxidation of contacts due to humidity or sweating of hands. How to avoid: keep the phone in a dry place, avoid using in wet areas (for example, in the bathroom).

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On Xiaomi models with an infrared port (for example, Redmi Note 10 Pro) you can use the air conditioner remote to check the speaker: turn on the "Test of Sound" mode in the Mi Remote application - the phone will play the signal through the speaker.

7 What to do if the speaker does not work after checking

If all tests show that the speaker is faulty, you have a few options:

Option 1: Warranty repairs

• 📅 Check the warranty period (usually 12 months from the date of purchase).
• 🛒 Find a check or phone-linked mail (if you bought it from the Mi Store).
• 📍 Contact the official Xiaomi service center (addresses are available on the website) mi.com/ru/service).

Option 2: Self-repair

• 🛒 Buy an original speaker for your model (e.g., on AliExpress or in parts stores).
• 🔧 Follow the guide to disassembly (search on YouTube by phone model) + "disassembly").
• 🔌 When soldering, use a soldering station with a temperature not higher than 300°C so as not to damage the fee.

Option 3: Alternative solutions

• 🎧 Use Bluetooth headphones or speakers.
• 🔊 Enable the Sound Amplifier mode in special features settings (can temporarily improve sound).
• 📱 If only the speaker isn’t working, use a speakerphone or headset.

⚠️ Note: On Xiaomi models with Dual Speakers technology (e.g, POCO F4 GT or Black Shark 5) when one speaker fails, the second speaker can automatically shut down.

FAQ: Frequent questions about Xiaomi speakers