Where is the speaker on Xiaomi Redmi Note 7: diagram, inspection and repair

Xiaomi Redmi Note 7 remains a popular smartphone even years after its release, but over time, many users have problems with sound. One of the frequent questions is: "Where is the speaker on this phone and how to check it?" The answer is not as obvious as it seems - the Redmi Note 7 uses a non-standard layout of the acoustic system, and the speakers are hidden under decorative grilles that do not always coincide with the actual location of the membranes.

In this article, we will not only show the exact locations of the speakers (including the often ignored top), but also explain how to distinguish them from microphones, why sound can disappear when talking or playing music, and what to do if the speaker stops working. You will also learn how to self-diagnose a malfunction without disassembling the phone and when to contact the service center.

The official layout of the speakers on the Redmi Note 7

The Xiaomi Redmi Note 7 has two speakers, but their placement is often confusing.

• 🔊 Main (lower) speaker - located on the bottom end of the phone, to the right of the connector USB-C. He is responsible for the playback of music, sounds in games and system notifications.
• 📞 Top speaker -- hidden under a bar above the screen, next to the front camera, used only for voice calls and microphone recordings.

Important: Many users mistakenly mistake the microphone (located on the top end) for the second speaker. In fact, there is no stereo sound in the Redmi Note 7 - the bottom speaker works alone for media, and the top speaker is activated only during calls.

⚠️ Warning: If you only hear sound when you're making calls, but you're not playing music, the problem is the lower speaker. If the sound is lost during a conversation, check the upper speaker.

How to distinguish a speaker from a microphone: visual signs

There are three grilles on the Redmi Note 7, but only two of them hide the speakers.

• 🔍 The bottom grille on the right is the main speaker, and you can see the membrane below it (if you shine a flashlight).
• 🗣️ The top grille above the screen is a conversational speaker, which is smaller and has smaller holes.
• 🎤 The top grille on the end is a microphone. There's no dynamics here, just a hole to capture sound.

To make sure, you can do a test: put your finger on the supposed speaker while you play it, and if the volume goes down, that's it, and if it doesn't, you cover the microphone or the empty grille.

Why the speaker may not work: top-5 cause

If the sound is gone or is quiet, it's not always the speaker's fault, and here are the most common reasons:

1. Grid pollution -- dust, pile, or moisture block the membrane, and this is especially true for the lower speaker.
2. Software glitch - after the MIUI update, the sound can "fly"; often solved by rebooting.
3. Mechanical damage – a fall of the phone can displace the membrane or tear off the plume.
4. Contact oxidation – if the phone has been in water, even after drying, the contacts of the speaker can corrode.
5. Failure of the audio codec – the chip responsible for the sound fails (requires repair).

Before you bring your phone to the service, try a simple diagnosis:

Call the phone and check the top speaker|

Turn the music on max volume for lower |

Try to play the sound through your headphones |

Reboot the phone |

Check the sound settings in MIUI-->

⚠️ Warning: If there is sound in the headphones, but not in the speakers, the problem is in the hardware (dynamics or plume). If there is no sound in the headphones, it is the audio codec or firmware that is to blame.

How to clean the speaker on Redmi Note 7 without disassembly

If the silent sound is caused by pollution, you can try to clean the speaker yourself. Don't use sharp objects (needles, toothpicks) - they will damage the membrane!

Safe ways:

• 🧹 Soft brush, paint brush or clean toothbrush, gently run through the grille to remove dust.
• 💨 Compressed air canister - direct short jets of air at an angle of 45° Don't blow too close to the bars!
• 🧲 Sticky tape -- cut off a piece of tape, glue it to a bar, and carefully remove it. 2-3 once.

For wet cleaning:

1. Wet the cotton swab in isopropyl alcohol (not in water!).
2. Easy to run on the bar without pressing.
3. Let the phone dry for 10-15 minutes before turning on.

💡

If the sound is better after cleaning, but not perfect, repeat the procedure every other day. Sometimes the dust does not come out immediately.

Fault Diagnostics: Test of speakers through the engineering menu

Redmi Note 7 has a hidden engineering menu where you can test both speakers separately.

1. Open the Phone app.
2. Dial the combination: ##4636###.
3. Select the Hardware Testing option → Audio.
4. Press Speaker Test to check the bottom speaker or Earphone Test for the top speaker.

If you have sound on the menu and you don't normally have it, the problem is with the MIUI settings or the firmware, and if you don't have sound on the test, the speaker is physically malfunctioning.

When to contact the service: signs of serious breakdowns

Not all sound problems can be solved by yourself.

• 🔇 The sound is completely lost in both speakers, but in the headphones there is.
• 🔊 The speaker emits wheezing or crackling even after cleaning.
• 💧 The phone fell into the water and then the sound became quieter.
• 🔧 The speaker grille is deformed (for example, after impact).
• 🔄 The sound appears, then disappears when the phone moves (a sign of a plume break).

The cost of repairing the speaker on the Redmi Note 7 in 2026:

⚠️ If you are offered to replace the speaker for 300-500 ₽, The original speaker for the Redmi Note 7 starts at 400. ₽ (new).

Frequent questions about the Xiaomi Redmi Note 7 speakers