How to turn off headphones on the Xiaomi Redmi 9

Modern smartphone users often face a situation where the wireless headset stops responding correctly to control commands or simply does not want to disconnect from the device. Owners of the popular Redmi 9 model are no exception, since the MIUI shell has its own unique algorithms for working with Bluetooth protocols. Sometimes the system continues to stream audio stream to the headphones already lying in your pocket, draining the battery, or the device does not see the switch off button in the menu at all.

In this article, we will take a look at all the possible ways to force a connection to break, from standard methods to deeper system settings. Understanding how sound buffering works in Android will help you avoid many of the typical errors in managing peripherals.

Importantly, the term “disable” can mean things from temporarily breaking communication to completely removing the device profile from the phone’s memory. To completely deactivate the Bluetooth function on Redmi 9, just one touch of the slider in the notification curtain will turn off all devices at once. If your goal is to free the audio channel for the smartphone speaker, leaving other wireless functions active, the algorithm of actions will be different.

Standard shutdown via control panel and settings

The most obvious and quick way to break the connection with accessories is to use the Quick Access Panel. On Xiaomi smartphones with MIUI shell, this is done by swiping from top to bottom. However, many users are unaware of the nuances of long-term icon tapping, which opens up an extended control menu.

To do this, unlock your Redmi 9 screen and swipe from the top edge of the display down.Look for a Bluetooth icon that usually looks like a stylized "B" with growths. A brief tap activates or deactivates the module completely, but we need more subtle controls.

• 🔹 Press and hold your finger on the Bluetooth icon near 2-3 Seconds to open the menu of the associated devices.
• 🔹 In the list that opens, find the name of your headset (for example, AirPods, Galaxy Buds or Xiaomi Earbuds).
• 🔹 Tap the gear or arrow icon next to the device name to access additional options.
• 🔹 Select “Disconnect” or “Disconnect” if available in the current context.

If the Bluetooth settings menu is missing or inactive, it could mean that the Android system considers the connection to be a priority or a freeze.In that case, try simply turning off the Bluetooth module itself with a slider at the top of the screen, wait 5 seconds and turn it on again. This often helps to reset the hung audio channel without losing saved profiles.

Control via multimedia menu and screen lock

Often users are required not just to break the connection, but to switch the output back to the phone speaker without physically turning off the headphones themselves. MIUI provides convenient widgets for controlling playback that are available even without unlocking the device.

When the audio stream is active, a media player control panel appears on the lock screen or in the notification curtain, and that's where the audio can be redirected. Click the audio output icon, which usually looks like a triangle with circles or a wave screen, to see the list of available devices.

⚠️ Note: If you have chosen Phone as your output device but the sound still goes to the headphones, check if the Absolute Volume feature is activated in the developer menu, as it can block channel switching.

In some firmware versions, switching the sound source is available directly in the Music or Mi Music widget. Just click on the device icon at the bottom of the widget, and the system will force the audio stream to the built-in speaker, which is especially convenient if you listened to the podcast on the road and then put the phone on the table, wanting to continue listening to the speaker.

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If the music control widget is missing from the lock screen, check the notification settings for the player app and make sure that access to it is not limited by the power saving mode.

Forced break of connection and removal of device

There are times when standard methods don’t work: the headphones don’t respond, and the phone keeps trying to connect to them in the background, in which case the most effective solution is to completely remove the device profile from the memory of the Redmi 9 smartphone.

To do this, go to the main system settings through the gear icon. Find the "Bluetooth" section and wait for the scan to end. In the list of "My devices" or "Coupled devices", find the problematic headset. Click on the gear to the right of the name will open the menu where you need to select "Cancel pairing" or "Forget device".

Once confirmed, the profile will be completely deleted, meaning that the phone will no longer try to automatically connect to these headphones until you re-start the pairing process, a radical but often the only surefire way to solve the phantom connection problem.

Working with wired headphones and adapters

Redmi 9 owners often use wired acoustics through a 3.5mm USB-C adapter, as this model lacks a classic headphone jack. Sometimes the system incorrectly detects the cable shutdown, continuing to silence the sound of the speakers.

The problem may be oxidizing the adapter contacts or getting dust into the charging port. If the headphone icon in the status bar does not disappear after the plug is removed, try the following steps to reset the audio output definition.

• 🔌 Carefully wipe the contacts of the adapter and port USB-C soft-cloth.
• 🔄 Quickly insert and remove the adapter from the port several times to activate the mechanical sensor (if it is in the adapter).
• ⚙️ Reboot your smartphone with the accessory already disabled so that the system re-interviews the ports.

It’s also worth checking if Mono-audio or other features that can capture audio output to a particular channel are enabled, and these settings are in the Advanced Settings section -> Special Options.

Using the Engineering Menu and Resetting Bluetooth Settings

If the software failure is deep, you may need to reset your network module settings, which will not delete your personal files, photos or apps, but will return Bluetooth, Wi-Fi and mobile settings to factory values.

To perform the reset, go to Settings → Connection and Sharing → Reset Wi-Fi, mobile networks and Bluetooth. The system will warn you that all stored networks and devices will be removed. Confirm action and wait for the reboot of communication modules.

⚠️ Note: After resetting your Bluetooth settings, you will have to pair with all your watches, headphones, and car systems again, as the encryption keys will be removed.

For more advanced users, there is an option to use the engineering menu, although newer versions of MIUI have limited access to it. Entering code ##6484## opens a testing menu where you can check the operation of the Bluetooth module, but it is not recommended to change the parameters without experience, so as not to disrupt the operation of the radio module.

Solving problems with automatic connection

One of the most annoying problems is automatically connecting the headphones right after they turn on, even when the user does not want to, a behavior that is embedded in the logic of the Android operating system, but it can be limited.

Each paired device's Bluetooth settings often have an Auto Connection switch. If you remove it, the phone will stop initiating the connection itself, but the headphones may stop turning on when removed from the case. An alternative is to disable the "Mi Connect" function or similar Xiaomi ecosystem services that try to sync devices.

Also worth looking at are audio player apps, some of which have their own settings that force playback and connect the last device you've ever used, and check the settings of apps like Spotify, Yandex.Music, or YouTube Music.

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Removing a device from the Forgotten list is the only guaranteed way to prevent automatic connection in the future without using third-party scripts.