What to do if Xiaomi phone only has 1 headphone: full instructions

You've turned on your favorite playlist, but instead of stereo, you hear music in only one ear? The problem of Xiaomi only running one earpiece is more common than you think. The reasons can lie in the smartphone itself, and in the headset, from the banal contamination of the connector to software failures. In this article, we will examine all possible solutions, from the simplest to radical measures.

It is important to understand that the algorithm of actions depends on the type of headphones: wired 3.5 mm or wireless Bluetooth headsets (for example, Xiaomi AirDots or Redmi Buds). We will consider both cases, and also separately focus on hardware malfunctions that require the intervention of the service center. If you are not sure about the cause of the breakdown, follow the instructions in order, this will save time.

According to service center statistics, 60 percent of the time, the problem is solved by itself without replacing the components, the other 40 percent is caused by physical damage to the cable, connector or speaker, and then a detailed guide with step-by-step steps, compatibility tables and warnings about typical errors.

1. Checking basic sound settings

Before disassembling the phone or carrying it for repair, make sure that the problem is not in the software settings. Xiaomi (especially on models with MIUI 12-14) sometimes confuses the sound balance settings or activates monophonic playback modes.

Open Settings → Sound and vibration → Sound balance. If the slider is shifted left or right, return it to the center position. Also check if the Mono Sound mode is turned on (this can happen after you connect your hearing aid or special accessories). On some firmwares, this option is hidden - to find it, use the settings search (the magnifying glass icon in the upper right corner).

• 🔊 Check the volume: it's possible that the sound is turned off in only one channel. Try to turn up the volume with the physical buttons on the phone.
• 🎧 Reconnect the headphones: Remove and re-insert the plug (for wired) or disable/connect Bluetooth (for wireless).
• 🔄 Reboot the phone: a banal rebuke often solves temporary failures in the work of audio drivers.

⚠️ Attention: If the phone continues to play sound through the speaker after the headphones are connected, the problem may be a damaged plug or connector contacts!

Diagnostics of wired headphones: 3.5 mm connector and USB-C

If you have wired headphones, the first thing you do is look at the plug and the cable, and most often, the break occurs at the base of the connector or near the speakers, and to check this, bend the cable slightly in different places while you play the sound -- if the sound comes up/disappears, the problem is the wire.

Then check the connector on your phone. Take a flashlight and look inside the socket 3.5 mm or USB-C (if you use an adapter). Pollution, oxidation or bent contacts can cause a bad connection. Use a cotton swab dipped in alcohol or compressed air (a canister for cleaning equipment).

Critical information: Xiaomi models with a USB-C connector (for example, Mi 11, Redmi Note 10 Pro) often have problems with non-original 3.5 mm adapters. Use only certified accessories - cheap Chinese adapters can damage the sound controller.

3. Bluetooth headphone problems: from connectivity to firmware

Wireless headphones (e.g. Xiaomi AirDots Pro, Redmi Buds 3) have their own set of typical problems. If one headphone doesn't work, check:

1. Battery charge: Often one earphone discharges faster than the other. Place both in the case for 10-15 minutes.
2. Synchronization: Remove the headphones from the case and wait until they connect with each other (usually accompanied by an audible signal).
3. Phone Connection: Remove the headset from the list of Bluetooth devices and reconnect.

If the problem persists, try resetting your headphones.

1. Put both earbuds in the case.
2. Press and hold the button on the case for 10-15 seconds until the indicator starts flashing red and white.
3. Remove the headphones and reconnect them.

⚠️ Note: Some Xiaomi models (such as Mi True Wireless Earphones 2) reset differently – triple tap on the touchpad of the headphone.

Check the charge of the case and headphones |

Remove the device from the Bluetooth list and connect again |

Update the firmware of headphones through the Mi Home| app

Reset the headset settings to factory |

Try connecting your headphones to another device-->

4. Software failures: resetting settings and software updates

If the hardware checks fail, the problem may be in the software. On Xiaomi with MIUI firmware, audio drivers sometimes get in conflict, especially after updates.

• 📱 Update the firmware: go to Settings → The phone. → Update the system and install the latest patches.
• 🔄 Reset the sound settings: in Settings → Sound and vibration press “Reset” (if you don’t have this option, use full reset).
• 🧹 Clear the cache of audio services: for this go to Settings → Annexes → Application management → System applications → Media and click "Clear Cache".

If the problem occurred after the MIUI update, try to roll back to the previous version.

1. Download the archive with the necessary firmware from the official Xiaomi website ("Download" section).
2. Rename the file to update.zip and place it in the root folder of the phone.
3. Go to Settings → About Phone → System Update, click on three dots in the upper right corner and select “Select firmware file”.

Warning: Firmware rollback may cause data loss. Pre-back up via Settings → Additional → Backup and Reset.

5. Hardware malfunctions: when without service can not do

If none of these methods worked, it's probably hardware that's the problem, and here are the most common malfunctions.

• 🔌 Audio chip damage: often occurs after a phone falls or moisture is ingested, symptoms include no sound in both headphones or distorted playback.
• 🔊 Failure of the speaker: if sound is only in one headphone when connected to other devices, the problem is in the headphones themselves.
• 📱 Connector damage: On models with a 3.5 mm connector (for example, Redmi Note 9) contacts can move away from the board.

To diagnose, connect your headphones to another device (like a laptop or a second phone), if the problem persists, the headset malfunctions, if sound appears, the phone is problematic.

The cost of repairs in the service center Xiaomi depends on the model and type of breakdown:

⚠️ Warning: Don't trust repairs to unofficial services if the phone is warranty. Xiaomi will cancel the warranty if it detects traces of a body opening.

6. Alternative solutions: if nothing helps

If repairs are delayed and headphones are needed urgently, use temporary solutions:

• 🎵 Use an external Bluetooth transmitter: connect it to your phone via USB-C And sync with the headphones. That'll bypass a faulty audio jack.
• 🔊 Activate hands-free: Some apps (like YouTube or Spotify) can enable playback via your phone speaker.
• 📱 Connect the headphones through OTG-Adapter: if the 3.5 mm connector is damaged, but USB-C Use an adapter with an external DAC.

Xiaomi owners with MIUI 13+ have a "Sound through speaker and headphones" feature, which activates in Settings → Special features → Sound. This will allow you to duplicate the audio stream, but the sound quality can deteriorate.

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If you often listen to music through headphones, install the SoundAssistant app from Google Play, which allows you to fine-tune the sound balance and eliminate program distortions.

7 Prevention: How to avoid problems in the future

To extend the life of headphones and audio jack phone, follow the simple rules:

• 🧼 Clean the connector regularly: Use a soft brush or compressed air once in a while 2-3 month.
• 🔌 Remove the plug correctly: hold on to the case of the connector, not the cable.
• 🔋 Do not use your phone while charging with connected headphones: this increases the load on the audio chip.
• 📱 Update the firmware: in new versions MIUI Often corrected bugs with sound.

For wireless headphones:

• 🔋 Store in a case: This protects against dust and mechanical damage.
• 💧 Avoid moisture: even if the headphones have protection IPX4, Don't use them in the rain.
• 🔄 Reset settings regularly: This prevents software synchronization failures.

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On Xiaomi models with a 3.5 mm connector (for example, the POCO X3, Redmi 9A), the connector itself often fails, rather than the audio chip, and its replacement is cheaper and takes less time.

FAQ: Frequent questions