Xiaomi phone thinks headphones are inserted: causes and solutions

Have you connected your headphones to Xiaomi, but the sound keeps going through the speaker? Or is the phone "sure" that the headset is inserted even though the connector is empty? This problem is familiar to many owners of Redmi, POCO and Mi smartphones, from budget models like the Redmi Note 10 to flagship Xiaomi 13 Ultra. Most often the fault is a contaminated connector, software failure or mechanical damage.

In this article, we will look at all the possible reasons why the phone mistakenly detects the connection of headphones, and give step-by-step instructions for troubleshooting – from the simplest actions (for example, reboot) to complex (pitching contacts), and you will learn when the problem is solved on your own, and when you need maintenance repairs.

Important: if after reading the article you were unable to fix the malfunction, check whether your model Xiaomi warranty – perhaps the manufacturer is obliged to repair the device for free.

Why does Xiaomi phone think headphones are inserted?

Headphone recognition is one of the most common problems with Xiaomi smartphones, caused by a failure in the audio chip, a 3.5 mm connector (if any) or USB-C (in models without a separate audio input).

• 🧹 Connector contamination: Dust, pile, or contact oxidation interfere with the correct identification of the connected device.
• 🔄 Software failure: errors in work audio_hw_primary (audio drivers) or chip firmware.
• 🔌 Mechanical damage: wear or break of contacts in the connector, especially after falls or frequent connections.
• 🔋 Power problems: unstable voltage at connector contacts (relevant to the USB-C).
• 🛠️ Audio chip malfunction: In rare cases, the audio controller itself fails (e.g., Qualcomm) WCD9340 flagship).

In models with wireless headphones (such as Xiaomi Buds), the problem may lie in the failure of the Bluetooth module, but this is a separate topic. Here we will focus on wired headsets and false activation of the connection sensor.

Method 1: Reboot and check headphones

Start with the simplest thing, rebooting your phone, and it will help you to get rid of the temporary audio system errors:

1. Turn off the headphones (if they are connected).
2. Press the power button and select Reboot.
3. After turning on, check if the problem has disappeared.

If the reboot didn't help, test out other headphones:

• 🎧 Try a headset with a different connector (e.g. 3.5mm instead of a headset). USB-C).
• 🔌 Connect your headphones to another device (laptop, second phone) to make sure they are working.

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If the phone gives an error "Hearphones are not supported", try to turn on the OTG mode in the developer settings (if it is disabled).

If the problem persists, move on to the next method.

Method 2: Cleaning the headphone jack

A contaminated connector is the most common cause of false alarms. At Xiaomi, the contacts are deep, and even a small accumulation of dust can simulate the connection of headphones.

1. Take a toothpick (not a metal!) or a plastic card.
2. Carefully remove visible contaminants without pressing (don't scratch the contacts!).
3. Use an alcohol wipe to clean from oxidation.
4. Let the connector dry for 5-10 minutes.

For USB-C models (such as the Xiaomi 12T or POCO F4), cleaning should be particularly delicate – the contacts are thinner than 3.5mm.

If after cleaning the problem remains, try blowing the connector with a hairdryer at minimum power (cold air!).

Method 3: Resetting the sound settings

Sometimes an error occurs because of a failure in the audio settings.

1. Go to Settings. → Sound and vibration.
2. Click on the three dots in the top right corner and select Reset Settings.
3. Confirm the action.

If you don’t have this, try turning off all the sound effects:

• 🔊 Turn off Mi Sound Enhancer.
• 🎵 Turn off the equalizer and spatial sound.
• 📱 Reboot the phone.

In MIUI 14 and later models, resetting audio settings may require disabling the Adaptive Sound function in the Special Features section.

Method 4: Checking for software errors

If the problem occurred after the MIUI update, the fault may be the audio driver failure.

1. Update to the latest version: Settings → About the phone → System update
2. Clear the app cache Settings: Settings → Apps → App management → Settings → Storage → Clear the cache
3. Reset all settings (does not delete data, but resets network, sound, etc.): Settings → Additional → Reset settings

If the phone doesn’t see the headphones after you connect, but the sound goes through them, try:

• 🔄 Switch the audio output mode manually (in the notification panel).
• 📱 Turn on/off Developer Mode and restart.

If none of these methods helped, the problem could be hardware.

Method 5: Diagnostics of hardware malfunctions

If the phone thinks the headphones are connected all the time, even when the connector is empty, it's likely that the contacts or the audio chip are damaged.

1. Connect the headphones knowingly working - if the sound goes through the speaker, the problem is the connector.
2. Light a flashlight into the connector - if the contacts are bent or oxidized, repair is required.
3. Check the connection response: If the phone doesn't make the connection sound when you insert/remove the headphones, the sensor is broken. If there's a sound, but the phone is wrong, the chip's firmware is the problem.

The most vulnerable models according to the statistics of service centers:

If you are not sure about your skills, don’t take your phone apart on your own – the risk of damage to the fee is too high.

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If the phone has ceased to recognize headphones after falling or getting moisture, repair in the service is mandatory - independent attempts can aggravate the problem.

Method 6: Fastboot Recovery (for Advanced)

If the problem occurs after a firmware or reset, flashing the audio module through Fastboot can help.This method is only suitable for users with experience with ADB!

You'll need:

• 🖥️ Computer with installed ADB and Fastboot.
• 📱 Unlocked bootloader on Xiaomi.
• 🔗 Firmware for your model (download from official source).

Instructions:

1. Connect your phone to your PC in Fastboot mode (clip Volume Down + Power).
2. Enter the command to check the connection: fastboot devices
3. Scroll down the audio module (example for Redmi Note 10): fastboot flash modem NON-HLOS.bin fastboot flash dsp dspso.bin fastboot reboot

⚠️ Warning: The wrong firmware can make your phone malfunction.

Method 7: Repair or Replace the Connector

If all previous methods fail, there are two options:

1. Replacement of the connector (relevant for models with 3.5 mm).
2. Repair of the board (if the tracks or audio chip are damaged).

The cost of repair depends on the model:

• 🔧 Replacement of the 3.5 mm connector: 500–1 500 ₽.
• 🔧 Replacement of the connector USB-C: 1 500–3 000 ₽ (because it requires soldering).
• 🔧 Audio chip repair: 2,000–5,000 ₽.

Before repair, check whether the warranty is valid:

If the phone is warranty, do not open it yourself - this will cancel the warranty obligations.

Warranty Repair: What You Need to Know

According to the law of the Russian Federation (Article 18 of the ZoZPP), you are entitled to free repairs if:

• 📅 Phone guarantee (usually 12 months).
• 🔧 The problem is not caused by your actions (fall, moisture, mechanical damage).
• 📄 You have a check or a warranty card (though by law, their absence does not deprive you of rights).

How to proceed:

1. Please contact the official Xiaomi service center (list on the Mi Service website).
2. Write a statement describing the problem (example: “The phone mistakenly detects the connection of the headphones, which prevents the use of the speaker”).
3. If you refuse, demand a written refusal and contact Rospotrebnadzor.

⚠️ Note: if the phone is rooted or stitched with custom software, the warranty is automatically removed.

Frequently asked questions