How to connect wireless headphones to Xiaomi Redmi 4X: full instruction with troubleshooting tips

Xiaomi Redmi 4X is one of the most popular budget smartphones, which is still actively used for its reliability and functionality. However, owners of this model often face difficulties when connecting modern wireless headphones via Bluetooth. Unlike new devices where pairing occurs almost automatically, Redmi 4X (especially with an outdated version of MIUI) can experience nuances – from the lack of sound to the inability to detect the gadget.

In this article, we’ll look at all the possible ways to connect, from standard pairing to alternative methods for problem cases, how to properly activate the search mode on the headphones, what settings the Xiaomi Redmi 4X should check first, and what to do if the smartphone “can’t see” the device, and also unique techniques for restoring communication after a firmware failure or a MIUI update that are not described in the official documentation.

The manual is suitable for any Bluetooth headphones: Xiaomi AirDots, Redmi Buds, JBL, Sony WH-1000XM, Samsung Galaxy Buds and others. Even if your model is not mentioned in the list, the algorithm of actions will remain the same.

1.Preparation: Checking compatibility and charging of devices

Before you start connecting, make sure your headphones and smartphone are ready to pair, and problems often arise from trivial reasons - a dead battery or incompatible Bluetooth versions.

Xiaomi Redmi 4X is equipped with Bluetooth 4.2 module, which supports most modern headphones, but may not work with the latest versions of the protocols (for example, Bluetooth 5.2+ with improved data transfer). If your headphones are released after 2020, check their specifications on the manufacturer's website.

Also note:

• 🔋 Headphone charge: Most models do not pair when the battery level is below 10%.Plug them to the charger for 10-15 minutes.
• 📱 Charging the smartphone: if the battery Redmi 4X Less than 15% discharged, the system can automatically turn off Bluetooth to save power.
• 🔄 Updates MIUI: obsolete firmware (below) MIUI 10) may not support new protocols. Check the software's relevance in Settings → The phone. → Updating the system.

⚠️ Note: If you use noise-canceling headphones (e.g. Sony) WH-1000XM4 or Bose QuietComfort, before connecting, disable the function ANC Some models block pairing if sound processing is active.

2. Standard connection via Bluetooth menu

The easiest way is to use the built-in Bluetooth menu in MIUI. Follow the step-by-step instructions:

1. Open Settings on Xiaomi Redmi 4X (cog icon on the home screen).
2. Go to the Bluetooth section (usually located in the Wireless Networks block).
3. Activate the Bluetooth slider (should turn blue).
4. Click Device Search (or Add a new device in older versions of MIUI).
5. Transfer the headphones to pairing mode (usually you need to press the power button for 3-5 seconds before the indicator blinks).
6. In the list of found devices, select the name of your headphones and confirm the connection.

If it's successful, your headphones will appear on the list of connected devices marked Connected, and you can test the sound, play music or video.

If the smartphone does not find the headphones:

• 🔍 Check that the headphones are really in pairing mode (the indicator should flash fast, not slow).
• 📵 Make sure they are not connected to another device (like a laptop or tablet.
• 🔄 Reboot Redmi. 4X — Sometimes it helps to reset errors of the Bluetooth module.

3. Alternative ways of connecting

If the standard method didn't work, try one of the alternatives, which is especially useful if you have an outdated version of MIUI or headphones with a custom protocol.

Method 1: Connect via the Quick Settings menu

Sometimes access to Bluetooth through basic settings is blocked due to system failures.

1. Swipe your finger down the screen to open the notification bar.
2. Find the Bluetooth icon (the stylized letter “B”) and hold it for 2-3 seconds.
3. The Bluetooth menu will open – then act as in the standard instructions.

Method 2: Using an application from the headphone manufacturer

Some brands (such as JBL or Sony) are releasing branded headphone management apps, which often contain proprietary drivers that work better with older smartphones:

1. Download the official app for your headphone model from Google Play.
2. Run it and follow the instructions on the screen (usually there is a Connect or Pair button).
3. After connecting through the application, headphones will appear in the standard Bluetooth menu.

⚠️ Note: Apps from headphone manufacturers may conflict with energy-saving settings MIUI. If after connecting the sound is interrupted, disable the Battery Optimization function for this application in Settings → Annexes → Permits → Auto-start.

Method 3: Reset Bluetooth settings on a smartphone

If you have previously connected other devices and now there are errors, reset the module settings:

1. Go to Settings → Bluetooth.
2. Click on the three dots in the top right corner and select Clear Cache (or Reset Settings in older versions).
3. Restart the phone and try again.

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If the headphones are connected, but the sound goes only to one channel (for example, only to the left earpiece), try to turn off the Mono-audio function in the special features settings (Settings → Special features → Hearing → Mono-audio).

4. Solving common problems

Even after a successful connection, there can be problems, and let's look at the most common ones and how to fix them.

If none of these methods worked, try upgrading to the latest available version for Redmi 4X. New MIUI builds often fix compatibility errors with modern Bluetooth devices.

5. Features of Xiaomi headphones connection (AirDots, Redmi Buds)

Xiaomi’s AirDots, Redmi Buds, Mi True Wireless headphones are optimized for MIUI devices, but they can also be nuanced. For example, Redmi Buds 3 Pro requires a firmware update through the Mi Home app, otherwise they won’t work properly with older smartphones.

Instructions for Xiaomi AirDots:

1. Take the headphones out of the case - they will automatically turn on.
2. Press the touchpad on both headphones for 10 seconds until the indicators start flashing red and white.
3. On Redmi 4X, activate Bluetooth and find a device called Mi True Wireless.
4. Confirm the connection. If the sound is only in one earphone, reset them (put them in the case for 10 seconds).

For Redmi Buds 3 Lite and newer:

• 🎧 Use the Mi Earphones app to customize gestures and check your charge level.
• 🔄 If the headphones do not sync with each other, reset them to the factory settings (press the button on the case for 15 seconds).
• 📲 In Bluetooth settings on Redmi 4X Enable the option Priority Sound Quality (if available).

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It is critical for Xiaomi headphones to use the original app (Mi Home or Mi Earphones) without it, some features (such as noise reduction or equalizer) may not work even after a successful connection.

6.Sound optimization after connection

When paired with the Redmi 4X, the sound may be quieter or worse than on other devices, due to the limitations of Bluetooth 4.2 and the default MIUI settings. Here's how to improve the quality:

The sound settings in MIUI:

1. Go to Settings → Sound and Vibration → Bluetooth Sound Quality.
2. Choose High Quality (AAC) or SBC (if AAC is not available).
3. Turn off the absolute volume – this will allow you to adjust the sound level regardless of the headphones.

Settings in headphones (if supported):

• 🎛️ In the manufacturer’s app (e.g. Sony Headphones Connect) select the Prioritize sound quality profile.
• 🔊 If the headphones support aptX, but Redmi 4X He can’t see it – update the firmware headphones.
• 🎵 For bass, use the built-in equalizer in Settings → Sound. → equalizer.

If the sound is interrupted, try turning off Wi-Fi – on the Redmi 4X, these modules may conflict over a shared antenna path.

7 What should I do if nothing helps?

If you've tried all the ways, but the headphones never plugged in, maybe the problem is deeper, hardware limitations or firmware failures.

1. Resetting the phone to factory settings

This is a radical method, but it often helps if the error is related to the system settings.

1. Go to Settings → Additional → Recovery and Reset.
2. Select Reset and confirm the action.
3. After restarting, reconnect the headphones.

Verification of the hardware

If Bluetooth doesn’t work at all (no devices are found), you may have problems with the module:

• 🛠️ Check if the Bluetooth antenna is damaged (often breaks after falls).
• 🔌 Connect your headphones to another phone – if they work, the problem is Redmi 4X.
• 💻 If possible, run your phone through Fastboot (instructions are available on the forums). 4PDA or XDA-Developers).

3.Using an external Bluetooth adapter

If the smartphone module fails, you can use an external adapter connected via USB OTG:

• 🔌 Buy a Bluetooth transmitter with a connector USB-C Micro-USB (depending on the version of Redmi) 4X).
• 🎧 Connect him to the phone through OTG-cable and pair headphones with an adapter.
• 📱 The sound will go through an external device, bypassing the built-in module.

⚠️ Attention: On Redmi 4X firmware MIUI 9 may not work USB OTG Check the support before buying an adapter USB Audio in Developer Settings (Settings) → The phone. → Version. MIUI — Press 7 times, then return to Additional → For developers → USB-audio).

FAQ: Frequent questions about connecting headphones to Xiaomi Redmi 4X