Badly audible interlocutor on the phone on Xiaomi Redmi: what to do in 2026

You're making a call on a big business, but instead of a clear voice, you hear only muted snippets of phrases or annoying noise? The problem of poor hearing when calling on Xiaomi Redmi smartphones is one of the most common complaints of users. The causes can be rooted in software failures and hardware malfunctions, from the banal contamination of the speaker to damage to the audio track after a fall.

In this article, we'll look at all the possible causes of sound deterioration in the tube, from simple (incorrect volume settings) to complex (oxidation of contacts on the motherboard), you'll learn how to diagnose the problem yourself, which settings to check first, and when you can not do without a visit to the service center, and for owners of Redmi Note 12, Redmi 10 and other popular models, we have prepared specific recommendations that take into account their design features.

Important: If the problem has occurred after the update MIUI Or mechanical damage (impact, moisture), the algorithm of action will be different.

1. Check basic settings: volume, call mode and sound profiles

Start with the basics -- maybe the problem is the wrong settings. There are a few parameters on Xiaomi smartphones that affect the volume of a conversation:

• 🔊 Call volume: press up/down volume buttons during the call, and the call volume slider will appear on the screen.
• 📞 Speaker mode: if the interlocutor is not audible only in normal mode, try to turn on speaker (the speaker icon in the call interface). If the sound is better, the problem is in the upper speaker.
• 🔇 Sound Profile: Go to Settings → Sound and vibration → Modes and check if Quiet or No Sound is activated.
• 🎧 Redirection of sound: in the same audio settings, find the Redirection of sound and make sure it is turned off (otherwise the sound may go to the Bluetooth headset).

Some Redmi models (like the Redmi Note 11 Pro) have a separate voice amplification setting in the call menu to find it:

1. During the call, tap the icon. ⋮ (three dots) in the interface.
2. Select Call Settings.
3. Activate the voice amplification option (if available).

⚠️ Warning: If the sound is completely gone after changing the volume settings, the audio system drivers may have gone down, in which case a phone restart or a sound reset (more on this below) will help).

2. Diagnostics of hardware problems: speaker, microphone and connectors

If the settings are fine but the person is still hard to hear, start by checking the hardware, starting with the obvious one: the top speaker (aka the speaker) that handles the voice during the call.

How to check the speaker:

1. Call another phone and put your ear on top of the Redmi (where the speaker is), and if the sound is quiet or distorted, the speaker is faulty.
2. Turn on voice recording (for example, via the voice recorder app) and listen to it through the top speaker, and if the sound is wheezing or not, the problem is confirmed.
3. Light a flashlight into the speaker grille: if dust, fibers or traces of oxidation are visible, cleaning is required.

Other hardware causes of poor hearing:

• 🔌 Bad contact plume speaker: after falling or disassembling the phone, the plume could move away from the motherboard.
• 💧 Contact oxidation: If the phone was in contact with moisture (even condensate), oxides could form on the board, which worsen the sound.
• 🔊 Faulty microphone: If the other person is also hard to hear you, the problem may be in the bottom microphone (near the charging connector).
• 📶 Poor communication quality: If the problem only manifests itself in certain places (for example, in the subway), the operator is to blame, not the phone.

⚠️ Attention: if you notice that the problem is aggravated when you press the phone case (for example, in the speaker area), this is a sign of detachment of contacts on the board. Self-repair in this case is fraught with complete failure of the phone - contact the service.

3. Software failures: resetting, software update and sound calibration

If the hardware is fine but the person is still not able to hear well, the software is to blame. On Xiaomi smartphones, a frequent cause is malfunctions. MIUI, Application conflicts or incorrect updates.

What to do:

Update MIUI last-minute|Clear the cache of the "Phone" application"|Reset the sound settings|Remove the update (if the problem has appeared after the update)|Perform reset to factory settings (in extreme cases)

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1.Update MIUI

Go to Settings. → The phone. → Update the system and check for updates. If you have an update, install it. MIUI They fix bugs with sound, like in the Redmi Note 10 Pro after upgrading to the MIUI 14 Many users noted improved call quality.

Clearing the cache of the Phone application

Go to Settings. → Annexes → Application management → Phone. Press Warehouse and select Clear cache. If the problem is temporary, that'll help.

3. Resetting the sound settings

Settings menu → Sound and vibration, find Reset audio settings (in some models it is hidden in Additional settings) This will return all the sound parameters to factory values.

4. Calibration of sound through the engineering menu

For power users, you can manually calibrate the audio system through the engineering menu.

1. Open the Phone app and enter the code ##4636##.
2. Go to the Audio (or Sound) section.
3. Select Volume and check the volume levels for Voice Call.
4. If the values are downed, reset them to default.

⚠️ Warning: Do not change the settings in the engineering menu unless you are sure of their purpose. Incorrect settings can lead to complete loss of sound or damage to the speakers.

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If the problem occurs after the update MIUI, Try to retrace the previous version via Fastboot. For instructions for a specific model, look at the forum 4PDA phone-themed.

4. The influence of the operator and network settings

Sometimes the poor hearing is not related to the phone, but to the quality of the operator’s communication, which is especially true for owners of Redmi with VoLTE support. 4G), where problems may arise due to unstable coverage.

How to check:

• 📶 Signal Level: If everything is at the call location 1-2 If you divide the network, the sound will be intermittent.
• 🔄 Switching between 3G/4G: In Settings → SIM-maps and mobile networks → Preferred network type, try manually selecting 3G. If the sound is improved, VoLTE is a problem.
• 🔗 APN-settings: Incorrect access point settings can affect the quality of calls. Reset them to the factory or request relevant ones from the operator.
• 📱 Double. SIM: if you use two SIM-If you want to call each card, try calling each card separately, sometimes the conflict arises because of different communication standards (for example, one card per card). 4G, other 2G).

Specifics for different operators:

• MTS/Tele2: frequent problems with VoLTE roaming. Turn this option off in network settings.
• Beeline: sometimes manual registration on the network helps (in the engineering menu code # # #4636## → Phone Information → Set preferred network type).
• Megaphone: if after the update MIUI The sound is missing in the calls, check if the settings are lost IMS (telephony).

If the problem only manifests itself with one operator, contact their support – possibly on your own. SIM-The card activates outdated services (e.g., improved communication quality) that conflict with modern standards.

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Before visiting the service center, be sure to check the phone with SIM-If the sound is normalized, it's the network problem, not the machine.

5.Recovery after updates and reset to factory settings

Updates MIUI Often, they bring not only new features, but also bugs. If bad hearing appeared immediately after the update, try the following steps:

Clearing the data of the "Phone" application

It's more radical than cache cleaning. Go to Settings. → Annexes → Phone. → Warehouse → Clear the data. After this procedure, call logs will be deleted, so export them beforehand (for example, through Google Contacts).

2. rollback of the update (for experienced users)

If the problem has occurred after the May update MIUI 14.0.5 (current for Redmi Note 11 and Redmi 10), you can try to return to the previous version:

1. Download the full firmware package (Fastboot) ROM) from the official Xiaomi website.
2. Connect your phone to your PC and run the old version through the Mi Flash Tool.
3. Follow the instructions carefully – wrong actions can lead to a phone blink.

3. Reset to factory settings

If nothing works, do a full reset. Important: pre-backup data through Settings → Additionally. → Backup and reset. Then:

1. Go to Settings → About the phone → Reset settings.
2. Choose to erase all data.
3. Confirm the action and wait for the reboot.

⚠️ Warning: After the reset, the phone will go back to the "out of the box" state. If the problem was a software conflict, this will help. If the cause is hardware (for example, a damaged speaker) - the reset will not work.

6.When you can not do without a service center: signs of serious malfunctions

If you've tried all the ways, but the person you're talking to is still hard to hear, it's probably a hardware breakdown, and here are some signs you should contact the service:

• 🔧 The sound disappears when you press the body → contact detachment speaker or plume damage.
• 💦 The phone fell into the water or was in a humid environment. → oxidation of the board, ultrasound cleaning is required.
• 🔊 The speaker is cracking or not working at all. → diaphragm.
• 📱 The problem is manifested only when connecting headphones → faulty audio chip or 3.5 mm connector (on models where it is).
• 🔥 The phone overheats during calls → possible failure of the processor or communication module.

Cost of repairs in service centers (approximately):

Before the service visit:

1. Make a backup copy of the data (in case of a complete reset).
2. Record a video demonstrating the problem (this will help the wizard diagnose the malfunction faster).
3. Check if the service has original parts for your Redmi model.

If the phone is warranty, do not disassemble it yourself - this will void warranty obligations. Contact the authorized service center Xiaomi (the list is on the official website).

Specific problems of Redmi: Note 10 models, 9A, A1 others

Some Redmi models have unique design features that affect sound quality.

📱 Redmi Note 10 / Note 10 Pro / Note 10S

• Frequent problem: a quiet sound in the tube due to a small speaker hole that is quickly clogged with dust.
• Solution: Compressed air or soft brush cleaning, if it doesn't work, switching the speaker (Article: 1605306562).
• After updating to MIUI 13 Many users complained about the distortion of sound – helps rollback on the sound MIUI 12.5.

📱 Redmi 9A / 9C / 8A

• Weakness: The plume of the dynamic that often fades after falls.
• Symptom: the sound appears, then disappears when you press the top of the phone.
• Solution: soldering of the plume or its replacement (cost: ~1 500 ₽).

📱 Redmi A1 / A2

• Problem: poor compatibility with VoLTE on some carriers (especially Tele2).
• Solution: Turn off VoLTE in the settings SIM-Update the card or update the firmware to the latest version.
• These models often get tweaked. APN — Check them with the operator.

📱 Redmi K50 / K60

• Feature: stereo speakers, but the upper (conversational) often fails due to overheating.
• If the sound in the tube has become quiet, and in the speakers when listening to music is normal, the upper speaker is to blame.
• Replacement will cost in ~2 500 ₽, But the original speakers are difficult to find - often put analogues.

For accurate diagnosis of your model, find it on the forum 4PDA — There are usually topics with typical problems and ways to solve them.

FAQ: Frequent questions about poor hearing on Xiaomi Redmi