Replacement of speaker on Xiaomi: full instructions with photos and tips

Replacing the speaker on Xiaomi smartphones is a challenge that many users face after falls, moisture or wear of components. Even in low-end models like the Redmi Note 12 or flagships like the Xiaomi 14 Pro, the audio system can fail, leaving you without sound during calls, music or videos. In this article, we will analyze all the steps of the procedure, from fault diagnosis to final assembly, taking into account the nuances of different models and typical beginners’ mistakes.

It is important to understand that the speakers in Xiaomi come in three types: conversational (top, for calls), multimedia (bottom, for music) and optional (in stereo systems), their replacement requires different approaches, for example, in the case of the use of a multimedia device. POCO X5 The Pro lower speaker is attached to the glue and screws, and in the Redmi 10 it is soldered into the motherboard. We will dwell on each case in detail so that you can assess the complexity of the repair before buying parts.

If you've never taken your smartphone apart, don't worry. With the right preparation and tools, it'll take less than an hour to do it, and to avoid typical problems (like damaging the screen plume when you take the back cover off), we've added checklists and warnings at every critical stage.

1. Fault Diagnostics: How to Know if a Speaker is Broken

Before you disassemble the phone, make sure that the problem is the dynamics, not the software failure or settings.

• 🔊 Sound test with headphones: connect wired or Bluetooth headphones. If there's sound in them, the problem is with the dynamics of the smartphone.
• 📱 Mode check: switch to Do Not Disturb and back (Settings) → Sometimes the sound goes missing because of software glitches.
• 🔄 Resetting sound settings: in the menu Settings → System system → Resetting settings → Reset the sound settings.
• 🛠️ Test call: Call another phone and check if the person you are talking to hears your voice (the problem may be the microphone, not the speaker).

If sound is only missing from one speaker (e.g., the bottom one works and the top one doesn't), it is likely that this module is damaged. 13T or POCO F5) Check both speakers separately - sometimes only one fails.

⚠️ Warning: If the sound is distorted (wheezing, crackling), this may indicate moisture or corrosion of the contacts, in which case, before replacing the speaker, be sure to clean the board with alcohol and check the integrity of the tracks.

For accurate diagnosis, use test codes:

#4636## → “Phone Information” → “Audio Check”

You can test each speaker separately here, and if there's no sound in the test, the speaker is 100% faulty.

2.Tools and materials: what will be needed to replace

To replace the speaker with Xiaomi, you will need a minimum set of tools, but you can not do without them.

Also, prepare a new speaker. You can buy one.

• 🛒 Original - on official sites (for example, Mi Store), but it is expensive (from 1500) ₽).
• 🔧 Analogue - on AliExpress or in spare parts stores (from 300) ₽). Quality varies, read reviews!
• 📦 Using a donor phone is a cheap option, but the risk of re-breaking is high.

⚠️ Note: In Xiaomi models after 2022 (for example, Redmi Note 12 Pro)+) Often, speakers with individual calibration are used, and after replacement, you may need to run through the Mi Flash Tool, otherwise the sound will be quiet or distorted.

Before buying, check the speaker article for your model.

1. On the Kimovil website (in the section "Spare parts").
2. In the service manual (see "model phone service manual pdf").
3. On the board of an old speaker (usually applied with a laser).

Make a data backup (in case of damage to the fee)|

Charge your phone at least 50% |

Prepare the workplace (clean surface, good lighting)|

Buy a speaker with the right article|

Check the availability of all tools-->

3. Disassembly of the phone: a step-by-step process

Xiaomi’s disassembly is the most critical stage. Mistakes here can damage the plumes, screen or motherboard. We’ll break down the universal algorithm, but note that some models (for example, Xiaomi Mix Fold 3) may have very different designs.

Step 1 Turn off the phone and remove it. SIM-map.

Step 2. Heat the back cover with a hair dryer (temperature 60–70)°C) for 2-3 minutes to soften the glue. Do not overheat - plastic may deform!

Step 3. Insert the plastic blade into the gap between the lid and the body (start at the corner next to the volume button). Carefully drive the blade around the perimeter, separating the lid.

In models with an aluminum body (for example, Xiaomi 13 Ultra), the lid can be attached to latches. Here you need special care - if you pull too hard, the latches will break.

Step 4: Unscrew the screws (usually 8-12 pieces). In newer models, the screws can be of different lengths — remember which one from! Take a picture of their location.

Step 5: Disconnect the battery plume (which is usually covered with black film) and use a plastic blade to gently lift the connector.

⚠️ Attention: Never pull the plumes! In Xiaomi, they are often fragile, especially the screen plume. If you damage it, repairs will cost 3-5 times more than the cost of the repair.

Step 6: Remove the motherboard (if the speaker is soldered into it) or gently unplug the speaker connector (if it is removable). 9A speaker is attached to double-sided tape - it must be heated and removed.

4. Dynamic replacement: nuances for different models

The replacement process depends on the type of speaker attachment, and let's look at the three most common options.

Option 1: Removable speaker on the connector (most models)

This is the type used in the Redmi Note 11, POCO X4 Pro, Xiaomi 12 Lite, etc. Here the speaker is connected to the board via a plume or spring contacts.

1. Disconnect the speaker connector (take care of it with a spatula).
2. Remove the old speaker (it can be attached to glue or screws).
3. Set a new speaker, making sure the contacts match.
4. Then, reconnect the slug (it should be snapped with a quick click).

Option 2: Dynamics on glue (budget models)

At Redmi. 10A, POCO M4 Pro and the like are glued to the body to remove it:

1. Heat the area of the speaker with a hair dryer (40–50)°C).
2. Carefully tuck it with a spatula, starting at the corner.
3. Clean the installation site from the residues of glue with alcohol.
4. Apply a new double-sided scotch (or glue) B-7000) back-end speaker.

Option 3: soldered speaker (rare but encountered)

In some models (for example, Xiaomi Mi). A3) The speaker is soldered into the motherboard, and you'll need a soldering station and microelectronics experience, and if you're a beginner, you'd better go to the service.

After replacing the speaker, be sure to check its operation before the final assembly:

• 📞 Call your phone and check the sound of the speaker.
• 🎵 Turn on music and test out the multimedia speaker.
• 🔊 Use the test code ##4636## to check the stereo balance.

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If the sound is quiet or distorted after you change it, try reconnecting the speaker connector, sometimes the contacts oxidize. → Sound. → Sound quality

5. Build a phone: how to avoid mistakes

Assembling is as important as disassembly, and the rule is, do it in reverse, but with a few things in mind:

1. Check all the plumes: they should lie flat, without inflections. In Xiaomi, often the sound problems after repairs arise due to the compressed battery plume.
2. Twisting all screws: A missed screw can lead to a backlash of the board and poor speaker contact.
3. Stick back cover: Use a new double-sided scotch (e.g, 3M 9088) or glue B-7000. Apply a thin layer so that there are no stains.
4. Check the leakproofness: if the phone has water protection (IP53 Then, after the sleeve, put a sealant on the lid joints (for example, LOCTITE 577).

After assembly, turn on the phone and check again:

• 🔋 Charging (connect the charger).
• 📶 Network (Make sure antennas are not damaged).
• 🔊 Sound (all speakers should work without wheezing).

⚠️ Warning: If the phone doesn't turn on after assembly, check: Is the battery plume connected, is the contacts on the board closed (check for foreign objects), is the power button installed correctly (in some models it blocks the power switch when the assembly is incorrect).

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If you change the speaker, you get a sound, but you're gone again a week later, probably the problem is the oxidation of the contacts on the board, so you can treat them with alcohol and repeat the procedure.

6. Common mistakes and how to avoid them

Even experienced technicians sometimes make mistakes when replacing the speaker, and here are the most common ones and ways to prevent them:

Another common problem is the extraneous sounds after replacement (squeaking, crackling).

• 🔌 Bad contact - check the speaker connector.
• 💧 Getting garbage - blow the speaker with compressed air.
• 🔊 Part incompatibility – if the speaker is unoriginal, its impedance may not coincide.

If you are experiencing a lack of sound in one of the speakers (in stereo systems), check:

• Balance settings in Settings → Sound. → Stereo balance.
• Integrity of the second speaker (sometimes when one is replaced, another is damaged).
• Updates to the software - in some firmware MIUI There are bugs with sound.

7. Alternative solutions: if the replacement did not help

Sometimes, after the speaker is replaced, the sound does not appear, in which case the problem may lie not in the dynamics itself, but in:

• 📱 Audio codec on the motherboard (chip responsible for sound processing).
• 🔌 A plume connecting the board and speaker.
• 🤖 Software failure (for example, after a failed update) MIUI).

What can be done:

1. Swipe your phone through the Mi Flash Tool (download the official firmware for your model on the website) MIUI Download).
2. Check the audio codec: Open the phone and check the board for blackened or bloated items. If the codec is burned (for example, due to a short circuit), it must be soldered or replaced with the board.
3. Use an external speaker: Connect a Bluetooth speaker or headphones. Enable the "Sound Amplifier" mode in Settings → Special facilities → Sound.

If the problem is in the audio codec, and you don't have soldering experience, you should contact the service. The cost of repairing the fee is on average 3000-8000. ₽, model-wise.

8.Tips to extend the life of speakers

To make the new speaker last longer, follow these recommendations:

• 🚫 Avoid maximum volume – this leads to overheating and wear of the membrane.
• 💧 Protect from moisture: even if the phone has protection IP53, If you get water, turn off the device and dry it in rice or silica gel.
• 📵 Don’t drop your phone: Bumps often lead to a speaker being separated from the board.
• 🔄 Clean the speakers from dust regularly (use a soft brush or compressed air).
• 🔋 Watch out for charge: A discharged battery can cause voltage surges that will damage the audio system.

Also, pay attention to the sound settings in MIUI:

• Turn off the Mi Sound Enhancer if you notice distortion.
• Include Adaptive Sound in Settings → Sound will reduce the load on the speakers.
• Use a uniform equalizer (avoid excessive bass).

If you often listen to music through your phone’s speakers, consider buying an external amp (such as the Xiaomi Bluetooth Audio Receiver) that will reduce the load on the built-in speakers and improve sound quality.

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Xiaomi models with infrared port (for example, Redmi Note 11 Pro)+) The solution is to avoid long-term use of the phone as a remote control for technology.

FAQ: Frequent questions about replacing the speaker with Xiaomi