Why Xiaomi Phone Shows Connected Headphones When They Are Not – and How to Fix It

You took a Xiaomi smartphone out of your pocket, and there's a headphone icon on the screen, even though nothing's connected? The sound is only going through the speaker, and the settings show that the device is "connected"? This problem occurs on Redmi Note 10/11/12, POCO X3/X4, Mi 11/12 and even on the new Xiaomi 13/14. Most often it's not the faults, but software failures or contamination of the connectors - but sometimes it's hardware malfunctions.

In this article, we will look at the 7 main reasons why Xiaomi mistakenly identifies headphones as connected, and give step-by-step instructions for each of them – from a simple reboot to repairing the connector.

We warn you right away, if you're not sure about your skills, it's best not to pick the jack with a needle or put alcohol in it, which can make things worse, but most of the solutions in this article are safe and don't require disassembling the phone.

1. Pollution or oxidation of the 3.5 mm connector (or USB-C)

The most common cause of false alarms is dust, moisture, or oxidation of contacts in the audio jack. Even if you don't use wired headphones, dirt can accumulate inside and close contacts, simulating the connection of the device, especially for models with a 3.5 mm connector (Redmi 9A, POCO M3), but USB-C (Xiaomi 12 Pro, Redmi Note 11 Pro+) is not immune to the problem.

How to check:

• 🔦 Light a flashlight into the connector - if dust, fibers or green plaque (oxidation) are visible, the cause is found.
• 🎧 Try connecting headphones – if the sound is intermittent or only in one ear, the contacts are contaminated.
• 💧 If the phone has recently come into contact with moisture (rain, sweat, condensate), the probability of oxidation is close to 100%.

How to clean the connector yourself:

1. Turn off the phone and get it out. SIM-memory-card.
2. Take a cotton cotton toothpick (not metal!) and gently scrolle it inside the connector. Don't push it too hard!
3. For oxidation, moisten the cotton swab in isopropyl alcohol (90%+) and wet the contacts. Don't pour the alcohol inside!
4. Let the phone dry 1-2 hours before turning on.

⚠️ Warning: Do not use needles, pins or other metal objects - they can bend the contacts. Also avoid wet wipes: impregnation leaves a film that worsens contact.

2. Software glitch: how to reset the sound settings

If the connector is clean, but the phone still "sees" the headphones, the problem may be the system cache or the lost audio settings, especially after updating the MIUI or installing custom firmware, in which case it helps to reset the audio settings or clear the cache.

Instructions for MIUI 12/13/14:

1. Open the Settings. → Sound and vibration.
2. Slip on the additional settings (or “More”).
3. Select Reset sound settings and confirm.
4. Reboot the phone.

If this doesn’t help, clear the cache of system applications:

1. Go to Settings → Applications → Application Management.
2. Click on the three dots in the upper right corner and select Show System.
3. Find Media Output (or Media Output), open it and click Clear Cache.
4. Repeat for Bluetooth apps and Settings.

Check if important sound profiles are saved

Remember the current volume for each type of notification

Make sure you don’t use the user’s alarm clock sounds.

Make a backup copy of the settings MIUI (optionally)-->

After this manipulation, the phone should stop "seeing" non-existent headphones. If not, move on to the next point.

3. Firmware error: how to update or roll back MIUI

Sometimes a bug with a false headphone connection appears after the MIUI update. For example, Redmi Note 10 Pro users complained about this problem massively after the release of MIUI 13.0.4, and owners of POCO F3 faced it in MIUI 12.5 Enhanced.

• 🔄 Update the firmware to the latest stable version (frequently bugs are fixed in the following patches).
• 🔙 Reverse to the previous version if the problem appeared after the update.
• 🛠️ Install custom firmware (like Pixel Experience or LineageOS), but it’s risky for beginners.

How to update MIUI manually:

1. Download the latest firmware for your model from the official Xiaomi website (choose Stable, not Developer).
2. Rename the file to update.zip and move it to the phone’s root directory.
3. Open Settings → About the phone → System update.
4. Slip on the three dots in the upper right corner and select Select a firmware file.
5. Select update.zip and wait for the installation to be completed.

⚠️ Note: If you decide to roll back on the previous version MIUI, Make sure to make a full backup through Settings → Additionally. → Backup and reset. Pushback can erase data!

4.Audio jack damage: how to diagnose and what to do

If neither cleaning nor resetting helped, the problem could be a physical jack failure, which is true for phones that have dropped, vibrated (like in a car), or plugged in their headphones with force.

• 🔌 The connector staggers or "luftite" when connecting the cable.
• 🔊 The sound disappears if you move the plug a little.
• 📱 The phone is rebooted when you connect headphones.
• 🔋 Battery goes down quickly (damage can close contacts).

How to check the connector without disassembling the phone:

1. Put your headphones on and gently move the plug in different directions, and if the sound is interrupted, the contacts are damaged.
2. Try connecting the headphones to another device, and if they work properly, the problem is the phone.
3. Use a resistance tester (multimeter): when the headphones are connected, the resistance between the contacts should change. If it shows 0 Ohms or OL (cliff), the connector is defective.

Critical information: On Xiaomi USB-C models (e.g. Xiaomi 12, Redmi Note 11 Pro+), the connector often fails due to unoriginal cables. Cheap wires with thin contacts can burn through ports, leading to a permanent false alarm of the connection sensor.

Decisions:

• 🔧 Re-solding connector - cheap repair (from 500) ₽), but requires skill.
• 🔄 Replacement of audio chips is more expensive (1 500-3 000) ₽), but more reliable.
• 📲 Using Bluetooth headphones is a temporary solution if repair isn’t an option.

5. Conflict with Bluetooth devices

Rarely, but it happens: Xiaomi phone confuses Bluetooth headphones with wired ones.

• You’ve recently connected wireless headphones, but haven’t turned them off correctly.
• In the memory of the phone saved several Bluetooth devices with the same names.
• Bluetooth service crashed after the update.

How to fix it:

1. Open Settings → Connections and Sharing → Bluetooth.
2. Remove all saved devices (slip on the gear next to each and select Remove).
3. Turn off Bluetooth for 30 seconds, then turn it on again.
4. If the problem persists, reset network settings: Settings → System → Reset settings → Network reset

Also try to “reset” the Bluetooth service through the developer mode:

1. Activate Developer Mode: Settings → About Phone → MIUI version (shap 7 times).
2. Back to Settings → Additionally. → For developers.
3. Find Bluetooth Reset and confirm.

💡

If the phone still sees the headphones, try connecting any other Bluetooth device (such as a fitness bracelet), sometimes resetting the erroneous state of the audio system.

6. Reset to factory settings: when necessary

If all the previous methods didn't work, there's a hard reset, which will delete all the data from the phone, but it will return to a "clean" state, eliminating software conflicts.

How to reset Xiaomi to factory settings:

1. Backup: Settings → Additional → Backup and Reset → Local Backup
2. Open Settings → About the phone → Reset settings.
3. Choose to erase all data and confirm.
4. After restarting, set your phone as new.

⚠️ Note: On some models (POCO F4, Xiaomi 12S) You may need to re-activate your Mi Account after the reset!

If even after resetting the phone shows headphones, the problem is 100% hardware – contact the service center.

7. Alternative solutions: if nothing has worked

When standard methods don’t work, you can try workarounds:

• 🎵 Forced audio switching: When you call, tap the speaker icon in the top panel to switch to the speaker of the phone. Sometimes this "resets" the mistaken state.
• 🔇 Shutting down the sound through ADB (Adb shell settings put global settings force_use_dynamic_audio_policy 1 This command forces the system to ignore the connector state.
• 🛡️ Use of magnetic plug: if the connector is wobbly, you can insert a plastic plug (sold on AliExpress) into it to fix the contacts.
• 🔊 Bluetooth Connection: If the phone is stuck in headphone mode, plug in real Bluetooth headphones and then turn them off.

If you're not afraid of experimentation, you can try flashing a custom core (like FrancoKernel) that handles audio drivers better, but it's risky and requires unlocking the bootloader.

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Before any firmware or ADB manipulation, make sure you have a fastboot unlocked and have a backup of the data.Firmware errors can turn the phone into a "brick."

FAQ: Frequent questions about false headphone connection