Why wired headphones on Xiaomi phone don’t work – a full analysis of the causes and solutions

You connected your headphones to Xiaomi, but the sound continues to go through the speakers, and the device is not displayed in the settings? Or is the sound interrupted, wheezing or heard in only one ear? The problem with wired headphones on smartphones of this brand is common - and the fault can be both hardware malfunctions (damaged connector, plug, cable) and software failures (sound settings, software conflicts, firmware errors).

In this article, we will discuss all possible causes of broken wired headphones on Xiaomi, including models with a 3.5 mm connector and Type-C → 3.5 mm adapters. You will learn how to diagnose the problem yourself, which settings to check first, and when it is time to carry the phone to the service center. And for owners of older models (for example, Redmi Note 5 or Mi A2), we will give some recommendations – their audio systems often suffer from wear and tear of contacts.

1. Checking the underlying causes: headphones, connector and cable

Before you dig deeper, rule out the obvious. Start by testing the headphones on another device -- plug them into a laptop, another smartphone, or a player. If there's no sound there, the problem is with the headphones themselves: maybe the cable is rubbed near the plug or one of the speakers, or the contact inside the case has gone.

If the headphones work on other devices, check:

• 🔌 3.5mm connector on the phone – whether there is debris, dust or deformity inside (such as a bent contact.
• 🔗 Headphone plug -- often breaks the brazing area of the cable to the plug.
• ⚡ Type-C adapter → 3.5 mm (if used) – such adapters often fail due to poor contact or overheating.

Pay special attention to Xiaomi with a Type-C connector (for example, Redmi Note 10 Pro or POCO X3 Pro). These models do not have a built-in DAC (digital-to-analog converter) in the adapter, and sound may disappear when the slightest contamination of the port. Try to connect the headphones through another adapter – original from Xiaomi or certified from a third-party manufacturer (for example, UGREEN).

2. Software failures: sound settings and software conflicts

If the hardware is fine, the problem is with the settings or the firmware.

1. Sound mode: Go to Settings → Sound and vibration → Sound quality. Make sure High Quality Mode (not Balanced or Energy Saving) is on and Adaptive Sound is turned off - it can conflict with wired headphones.
2. Output device priority: in the same audio settings, find Output device and manually select Wired Headphones (sometimes the system “forgets” to switch).
3. App permissions: Some apps (like Spotify or YouTube Music) can block audio output to headphones. Go to Settings → Apps → Permissions Management → Microphone and check if there are restrictions.

If the problem appears after the firmware update, try resetting the sound settings:

1. Go to Settings → System and device → Resetting.
2. Select Reset Network, Sound and Display settings.
3. Confirm the action and restart the phone.

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On some models, Xiaomi (for example, Redmi Note 8 Pro) helps disable the Dual App Audio feature in the audio settings - it can create conflicts when connecting headphones.

3. firmware errors and MIUI bugs

MIUI updates sometimes make critical bugs in the audio system. For example, after the release of MIUI 14, many users of Xiaomi 12T and POCO F4 complained about the loss of sound in wired headphones. If the problem appeared after the update, try:

• 🔄 Reverse to the previous version MIUI (if backup is available).
• 🛠️ Clear the system cache: go to Settings → Memory. → Clean and select Cash Systems.
• 📱 Install a patch from the community (for example, via Xiaomi.eu or LineageOS if you have a bootloader unlocked).

For diagnosis, check the error logs:

1. Put the headphones on.
2. Open the Phone app and dial ##4636##.
3. Select Phone Information → Audio and see Wired Headset status. If it's Disconnected, despite the headphones being plugged in, it confirms a software glitch.

4. Problems with Type-C connector and adapters

Xiaomi models without 3.5 mm (for example, Mi 11, Redmi K50) use digital audio output via Type-C. Here most often break:

Xiaomi adapters from Redmi Note 10 and older are particularly vulnerable, as their chips often overheat. If the sound goes away after 5-10 minutes of use, try:

• Use an adapter with an external amplifier (e.g., iBasso DC05).
• Disable MIUI Optimization for audio applications in battery settings.
• Check the temperature of the adapter – if it is hot, let it cool.

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Xiaomi’s Type-C → 3.5mm adapters don’t support high-omnipotent headphones (resistance above 32 Ohms). If your headphones have an impedance of 50 Ohms or higher, the sound will be quiet or distorted – use an external amplifier.

5. Conflicts with Bluetooth and other wireless devices

Sometimes wired headphones don't work because of a conflict with a Bluetooth module, which is typical for models with Qualcomm Snapdragon (for example, POCO X3 NFC or Redmi K40), where audio and Bluetooth are processed by a single chip.

• 🔗 Disable all connected Bluetooth devices (earphones, speakers, fitness bracelets).
• 🔄 Restart your phone in Safe Mode (hold the power button) → Safe Mode. If the headphones are working, it's third-party software.
• 📱 Reset Bluetooth Settings: Settings → Connections → Bluetooth → ⚙️ → Resetting settings.

If the problem persists, try disabling Bluetooth completely through the developer:

1. Activate Developer Mode (7 times tap the MIUI version in Settings → About Phone).
2. Go to Settings. → Additionally. → For developers.
3. Find Turn off Bluetooth A2DP and turn on this option.
4. Reboot the phone.

Turn off all Bluetooth devices |Reboot phone in safe mode |Reset Bluetooth |Deactivate A2DP in developer mode |Check your headphones again

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6. Physical damage: water, falls, wear and tear

If the phone fell, came into contact with moisture or was in long-term use, the problem may be a physical malfunction:

• 💧 Fluid intake: Even if the phone hasn't sunk, condensation or high humidity can oxidize the connector contacts. Check the moisture indicator (usually near the jack's humidity). SIM-stained water – if it is red, drying is required).
• 💥 Hit or fall: after mechanical impact, the plume of the audio module often leaves or the soldering of the connector cracks.
• ⚡ Wear of contacts: on older models (for example, Redmi) 4X or Mi 5) 3.5 mm connector loosens from frequent use.

For self-diagnosis:

1. Put your headphones on and move the plug a little bit, and if the sound comes or goes, the contact problem is.
2. Light a flashlight in the connector: if you see darkening or green plaque (oxidation), cleaning with alcohol is required.
3. Check if the connector is hanging in the case - this is a sign of fallen soldering.

⚠️ Warning: If the phone falls into water, don't dry it with a hair dryer or battery, it will speed up corrosion, use silica gel (shoesbox bags) or take it to an ultrasonic cleaning service.

7.When to contact the service: signs of serious malfunctions

If none of these methods worked, there's probably an iron problem.

• 🔧 Headphones are not detected on any device, but work via Bluetooth.
• 🔊 The sound is distorted even when connected via an adapter to another phone.
• 📱 The phone doesn’t see any wired headphones, including the original ones from Xiaomi.
• 💥 After falling or getting moisture, the sound in the speakers and headphones disappeared.

Typical faults requiring repair:

⚠️ Note: On Xiaomi Type-C models (such as the Mi 11 Ultra), replacing the audio chip often requires flashing. EDL-- a mode that could lead to data loss!

FAQ: Frequent questions about wired headphones on Xiaomi