How to turn off headphone jack on Xiaomi: software and hardware methods

The headphone jack on Xiaomi smartphones can be a source of problems, from accidentally turning on the headset mode to physical breakdowns. Many users of Redmi, POCO and other lines face the need to temporarily or permanently deactivate this port — for example, when using wireless headphones, damaging contacts or preparing for repair. However, simply “pulling the plug” is not enough: the system continues to recognize the connection, which leads to malfunctions of the speakers or microphone.

In this article, we will discuss 5 You'll learn how to diagnose malfunctions, avoid common errors, and what to do if your smartphone doesn't see headphones even after it's turned off. 11/12/13 series, Redmi Note 10-12, POCO F/X/M and other devices based on MIUI 12-14 HyperOS.

Why you may need to turn off the headphone jack

At first glance, deactivating the audio jack seems pointless, because you can simply not use it. However, there are several scenarios when it becomes necessary:

• 🔌 False sensor operation: smartphone mistakenly detects headphone connection by blocking sound through speakers: A common problem after falls or moisture hits.
• 🎧 Switching to wireless headphones: if you only use TWS-Headsets (such as Xiaomi Buds or AirDots), a physical connector becomes unnecessary and can collect dust.
• 🔧 Preparation for repair: before replacing the plume or connector, the wizard is recommended to turn off the port programmatically to avoid short circuits.
• 💧 Liquid intake: when a smartphone is poured, disconnecting the connector reduces the risk of contact corrosion.

It is important to understand the difference between software shutdown (the system ignores the connector) and physical (mechanical disconnection of contacts). The first method is reversible and safe, the second requires disassembly of the device and may be ineffective.

⚠️ Warning: If your smartphone stops playing sound through the speakers after connecting the headphones, do not rush to turn off the connector. First check the cleanliness of the contacts and restart the device - in 60% of cases the problem is solved without intervention.

Method 1: Disconnect via the engineering menu (without root)

The safest method is to use a hidden engineering menu (MTK Engineering Mode or Qualcomm Diag), which works on most Xiaomi smartphones without the need for superuser rights.

1. Open the Phone app and enter the combination: ##36446337## For some models (POCO F4/F5, Redmi Note 12 Pro+) use: ##4636####
2. In the menu, select Hardware Testing → Audio.
3. Find the Headset Mode section and set the Disable or Off value.
4. Save the settings and restart the smartphone.

If the combination didn’t work, try an alternative way through Settings → About Phone: tap 7 times on the MIUI Version to activate the developer mode, then go back to the basic settings and find a new Developer section. In it, turn on Debugging over USB and connect to your PC to access advanced audio settings.

Charge your smartphone at least 50%|Make a backup copy of the data|Check the processor model (MTK/Qualcomm)|Make sure there is no moisture in the connector-->

Method 2: Use of the ADB-Teams (for advanced teams)

If the engineering menu is not available, you can turn off the connector via Android Debug Bridge (ADB). This method requires a PC and minimal command line knowledge, but gives more control.

1. Download ADB Tools and unpack the archive.
2. Turn on your smartphone to debug by USB (see the previous section).
3. Connect the device to your PC and open the command line in the folder with adb.exe.
4. Enter the commands in turn: adb devices (should appear your device) adb shell settings put global headset_disable 1
5. Reboot your smartphone.

To get the connector back to work, use the same command by replacing 1 with 0. This method works on MIUI 13/14 and HyperOS, but may not be supported on custom firmware.

Method 3: Applications for locking the connector (with caution)

In Google Play, there are apps that promise to disable the headphone jack software, for example:

• Headset Blocker (requires Android 8.0+)
• SoundAbout (paid version)
• Audio Routing (for advanced users)

However, most of these utilities request dangerous permissions (access to notifications, device administrator), which can lead to data leakage, we recommend using them only if other methods have not worked, and be sure to check reviews before installing.

An alternative is MIUI Hidden Settings (available on 4PDA), which reveals hidden audio options.

1. Open the app and go to Audio Settings.
2. Find the Force Disable Headset option and activate it.
3. Reset the device.

⚠️ Note: Applications from third-party sources may contain malicious code. Check the hash file before installing (SHA-256) You can't use a website like VirusTotal. SMS or bank data under the pretext of "sound settings".

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If the sound is completely gone after using the app, reset the audio settings through Settings → Sound → Reset to factory. This will return the audio parameters to their original state.

Method 4: Edit system files (root only)

This method is suitable for advanced users with unlocked bootloader and root rights. It allows you to turn off the kernel-level connector, but if you do not act correctly, it can lead to a bootloop.

1. Install a file manager with root support (such as Root Explorer or Solid Explorer).
2. Go to /system/build.prop and open the file to edit.
3. Add at the end of the line: persist.audio.headset.enable=0 persist.audio.headset.force=0
4. Save the file, set the rights 644 (rw-r--r---).
5. Reset the device.

Qualcomm Snapdragon models (e.g. Xiaomi 12 Pro, POCO F4 GT) may require additional editing of /vendor/build.prop file with the same settings. Be sure to back up the original files before making changes!

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Editing system files without backup is the main reason for "bricking" smartphones. Always save the original versions of files on the computer. SD-card.

Method 5: Physically disabling the connector (for repairmen)

If the software methods have failed or the connector is physically damaged, it leaves a mechanical disconnect, which requires disassembling the smartphone and soldering, so it is only suitable for users with experience in electronics repair.

1. Turn off your smartphone and remove it. SIM-map.
2. Heat the back cover with a hair dryer (temperature 80-90 ° C) and gently tuck it with a plastic spatula.
3. Disconnect the battery plume to avoid short circuit.
4. Find the headphone jack (usually located next to the headphones). USB-port) and unseal its contacts or disconnect the plume.
5. Insulate the contacts with a shrink tube or tape.

On Xiaomi models with frameless design (for example, Xiaomi 13 Ultra, Mix Fold 2), the connector is often integrated into the motherboard, and its deactivation requires soldering of resistors.

⚠️ Attention: Unconnecting the connector without proper skills can damage nearby components, such as a microphone or Wi-Fi antennas. If you are not confident in your abilities, entrust this work to professionals.

Diagnostics of malfunctions after disconnection

If there are problems after deactivation of the connector, use this table for diagnosis:

To check the operability of the audio system, use test commands:

adb shell dumpsys media.audio_flinger

This command will show the status of all audio devices. Look for lines from the headset — if they are missing, the connector is successfully disabled.

FAQ: Frequent questions about turning off the headphone jack