Why you can’t hear the interlocutor on Xiaomi Redmi: a complete guide to fix the problem

Why the sound disappears when calling Xiaomi Redmi

The problem of not hearing the other person on a Xiaomi Redmi call is more common than you think, and it can be due to both trivial volume settings and serious hardware malfunctions. 80 percent of the time, software or network settings are to blame, but sometimes physical damage to the speaker or microphone is to blame.

Most complaints come from owners of Redmi Note 10/11/12, Redmi 9/9A/9C and POCO X3/X4 models after MIUI updates or mechanical drops. In this article, we will discuss all possible causes, from trivial to critical, and give clear instructions on how to return sound without contacting the service center.

Before you panic and carry your phone for repair, check the basics: whether the mode is on the plane, whether the sound is silenced by the volume buttons, whether the headphones are connected (even if you can’t see them, the connector can stick) These simple steps solve the problem in 30% of cases.

1. Check basic sound and network settings

Start with the obvious: it’s possible that the sound is simply turned off or redirected to another device. There are a few pitfalls on Xiaomi Redmi that users often forget.

• 🔊 Call volume: Press the volume button during the call - sometimes the slider gets knocked down to a minimum. MIUI The volume of the call and the media are separated.
• 🎧 Connected headphones: Even if you don't use wired headphones, a 3.5mm or Type-C connector might think they're connected. Try moving the plug in the socket or blowing into the socket (carefully!).
• 📶 Network Mode: Go to Settings → SIM-maps and mobile networks → Network settings and select “Only” 4G (LTE)». Sometimes when you switch automatically to 3G/2G There are problems with sound.
• ✈️ On the plane mode: Make sure it's off. Sometimes bug MIUI It will be automatically activated after updating.

If you don't get the sound after this manipulation, then you can move on to the next step. Note that some Redmi models (like the Note 11 Pro+) have a separate voice enhancement setting in the call menu, so check if it's disabled.

2. Software failures: MIUI, applications and cache

MIUI firmware failures are one of the most common causes of sound loss, especially after updates or custom firmware installations.

• 🔄 Phone reboot: Banal but helps 40% of the time.Plug the power button and select Reboot.
• 🗑️ Cache Clearing: Go to Settings → Annexes → Application management → Phone, press Storage and select Clear Cache. Do the same for Contacts app.
• 📱 Resetting network settings: In Settings → SIM-maps and mobile networks → Network resets, which will remove stored Wi-Fi and Bluetooth devices, but often solves sound problems.
• 🛠️ Related: Retreat of the update MIUI: If the problem appeared after the update, try to roll back to the previous version through Settings. → The phone. → Updating the system → Three dots (menu) → Select a Service Package.

If you use third-party calling apps (WhatsApp, Telegram, Viber), check the microphone and speaker permissions in Settings → Apps → Permissions. Sometimes, after updating the apps, those permissions are reset.

Important: If the sound is only lost in a particular app (like Zoom or Discord), the problem is probably in the app, not the phone. Try reinstalling the app or using it to support it.

Hardware problems: speaker, microphone and connectors

If the software methods didn't work, it could be a physical malfunction. Xiaomi Redmi most often fails:

• 🔈 Top speaker (spoken): Responsible for the sound of the interlocutor. If it is damaged, you will only hear through the speakerphone.
• 🎤 Microphone: If the person can't hear you, the problem may be in the bottom microphone (near the charging connector).
• 🔌 Connector. 3.5 mm/Type-C: Oxidation or mechanical damage can trick the system into thinking that the headphones are connected.
• 📶 Antenna module: Rarely, but it happens that sound problems are associated with a bad signal due to a damaged antenna.

How to check:

1. Call another phone and put it on speakerphone, and if you have a sound, it's a problem with the speaker.
2. If you have a sound in them and you don't have a speaker, it's the speaker or the plume.
3. Light a flashlight in a 3.5 mm/Type-C connector. If you can see dirt, oxidation or bent contacts inside, cleaning or replacement is required.

Critical information: On the models of Redmi Note 10 Pro and POCO X3 Pro, a factory defect of the speaker plume is often encountered. If the phone is warranty, do not disassemble it yourself - contact the Xiaomi service center.

⚠️ Note: If you have no experience in electronics repair, do not try to disassemble the Xiaomi Redmi yourself to replace the speaker or microphone. On most models, the plumes are very fragile and easy to damage.

4.Problems with SIM-map-and-operator

Sometimes the problem with the sound when calling is not connected with the phone, but with the phone. SIM-It's a map or a setup of the operator:

• 📱 Reinstall. SIM-Map: Take it out, wipe the contacts with dry cloth and put it back in. SIM old (more than 5 years), replace it in the cabin of the operator.
• 🔄 Change the slot. SIM: If you have a two-sim Redmi, try moving the card to another slot.
• 📡 Check the settings. APN: Go to Settings. → SIM-maps and mobile networks → Access points (APN) And reset it to the factory. APN They may cause problems with sound.
• 📞 Test call through another operator: Try calling another SIM-If there's sound, there's a problem with your operator.

If you use a virtual operator (e.g. Tinkoff Mobile, Yota), try temporarily switching to the physical SIM of the main operator (MTS, Beeline, MegaFon).

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If you have Xiaomi Redmi with VoLTE support (voice through) 4G), but the sound is lost when calling, try to disable this function in Settings → SIM-maps and mobile networks → VoLTE call, sometimes it conflicts with some carriers' networks.

5. Reset to factory settings: when it will help

If all previous methods failed, the last software method is hard reset, which will remove all data from the phone, so back up first.

How to Reset Xiaomi Redmi:

1. Go to Settings → About Phone → Backup and Reset → Reset settings.
2. Choose to erase all data.
3. Enter your password (if required) and confirm the reset.
4. After the reboot, set the phone as new and check the sound when calling.

If the reset helped, the problem was software conflict; if it didn't, it was almost certainly the hardware (the speaker, the microphone, the motherboard) that was to blame.

⚠️ Note: Some Redmi models (such as Note 8 Pro) may be missing after reset IMEI, Make sure you have a backup of the folder before resetting. EFS (contain IMEI).

6. When to contact the service center

If you've tried all the methods, but the sound never came, it's time to carry the phone for repair. Here are signs that the problem is hardware and requires professional intervention:

• 🔊 The sound disappears even after resetting to factory settings.
• 🛠️ The phone fell or got wet before the problem appeared.
• 🔌 In the connector 3.5 mm/Type-C visible corrosion or physical damage.
• 📱 The speaker or microphone does not work even when connecting headphones.
• 🔄 The problem appears periodically, for no apparent reason (may indicate problems with the motherboard).

The cost of repair depends on the model and nature of the breakdown:

• Replacement of the Speaker: 800–1500 ₽.
• Microphone Replacement: 1000–2000 ₽.
• Type-C connector repair/replacement: 1500–3000 ₽.
• Diagnosis of the motherboard: from 2000 ₽.

If the phone is warranty, contact the official service center Xiaomi. mi.com/ru/service/center. Non-warranty repairs are better done in proven workshops with good reviews.

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If the problem has appeared after a fall or moisture, do not delay the repair. corrosion on the board can spread and disable other components, increasing the cost of repair at times.

7 Prevention: How to Avoid Sound Problems in the Future

To avoid recurring problems, follow these guidelines:

• 🛡️ Use a cover and protective glass: This will save the phone from falls, which often cause damage to the speaker or microphone.
• 🚫 Do not use your phone in the rain or in the bathroom: Moisture is one of the main causes of contact corrosion.
• 🔄 Update regularly MIUI: Newer versions of firmware often fix sound-related bugs.
• 🔌 Handle the connector carefully. 3.5 mm/Type-C: Do not insert headphones with force and avoid contamination.
• 📱 Periodically clean speakers: Use a soft brush or compressed air to remove dust.

If you make frequent calls in noisy places, consider buying a Bluetooth headset that will reduce the load on the built-in speaker and improve sound quality.

FAQ: Frequent questions about sound issues on Xiaomi Redmi