Xiaomi Redmi Note 4X — One of the most popular smartphones in the budget segment, released in 2017, but still in active use. Despite its age, the device supports modern wireless technologies, including Bluetooth 4.2, which allows you to connect headphones, speakers and other accessories to it. However, users often have questions: how to pair correctly, what to do if the phone does not see the headphones, or how to fix problems with sound after connecting.
In this article, you will find a step-by-step instruction for connecting Bluetooth headphones to the Redmi Note. 4X, including the nuances of working with different models (from AirDots to Sony) WH-1000XM3). We'll also look at common bugs that interfere with wireless connectivity and give you recommendations for optimizing your connection. If your headphones have already been paired with another device, no problem: there's a section on how to reset them before you connect again.
1. Connection Preparation: What to Check Before Pairing
Before you start connecting, make sure your Xiaomi Redmi Note is available. 4X And the headphones are ready to go, and neglecting these steps often leads to malfunctions in the pairing process.
First, check the headphones. Most models require a minimum charge level (usually a charge level). 10-15%) If the headphone light flashes red or doesn't burn at all, plug them into the charger on the headphone. 10-15 Also make sure that Bluetooth is on on your smartphone: swipe down from top to bottom across the screen to open the notification bar, and find the Bluetooth icon (if it's gray, tap it).
Second, remove old connections if there are any.Redmi Note 4X It can store up to 8 paired devices in memory, but sometimes conflicts between them lead to errors:
- Go to Settings → Bluetooth.
- Find in the list previously connected headphones and tap the pin on the gear icon next to them.
- Choose to Delete or Forget the device.
Finally, note that some headphones (such as Apple AirPods or Samsung Galaxy Buds) may require special apps to work with Android. In this case, download the official software from Google Play (for example, Galaxy Wearable for Samsung or Nothing Ear for the headphones of the same name).
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If the headphones are not determined by the smartphone, try rebooting both devices, often solving the problem of temporary malfunctions in the Bluetooth module.
2. Step-by-step instruction: how to connect Bluetooth headphones to the Redmi Note 4X
The process of pairing takes no more 1-2 Here is a general-purpose instruction that is suitable for most headphone models (from Xiaomi Mi True Wireless Earbuds to Xiaomi Mi True Wireless Earbuds). JBL Tune 510BT).
Step 1: Activate the search mode on your headphones. Usually, you need to:
- 🔋 Hold the power button (or touch panel) for a period of time 3-5 seconds until the indicator starts flashing blue-red (pairing mode).
- 🎧 For headphones with a case (for example, AirDots) – open the lid and hold the button on the case.
- 🔄 If the headphones have already been connected to another device, a reset may be required (instructions in the next section).
Step 2: Turn on Bluetooth on your smartphone and start searching:
- Open Settings → Bluetooth.
- Move the slider to the position On (if it is not already active).
- Wait until the name of your headphones appears in the Available Devices list (for example, Mi True Wireless EBs Basic 2 or the EBs). WH-1000XM3).
- Then, put the name on the headphones and confirm the pairing (if necessary, enter the headphones). PIN-code - usually 0000 or 1234).
Step 3: Check the connection. Once you pair successfully:
- 🎵 Run any audio file (music, podcast) – the sound should be automatically transmitted to headphones.
- 📱 In the status bar (upper right corner of the screen) will appear Bluetooth icon with the indicator of the connected device.
- 🔊 Make sure that the volume control on the smartphone is not at a minimum (sometimes after connecting the sound level is reset).
Headphones charged (indicator lights or flashes)|Bluetooth on your phone is on|Old connections removed|Headphones in pairing mode (blue/red flashes)|The sound on the phone is not off.-->
3. Problem Solving: The phone doesn't see headphones or doesn't connect
If Redmi Note 4X If you don't find your headphones or you get a connection error, it can be software or hardware.
Problem 1: Headphones don’t appear in the list of available devices.
- 🔄 Reboot the headphones: turn them off, wait 10 seconds and turn them back on in pairing mode.
- 📱 Update your phone firmware: outdated software may contain Bluetooth bugs. Check the updates in Settings → The phone. → Updating the system.
- 🛠️ Reset your network settings: go to Settings → System system → Reset → Reset the network settings. This will delete all stored Wi-Fi and Bluetooth connections.
Problem 2: Connection is interrupted or the sound is lost.
- 📶 Reduce the distance between your phone and headphones (maximum 10 meters without obstacles).
- 🚫 Disable other Bluetooth devices connected to your phone (fitness bracelets, smart watches).
- 🔋 Check the charge of headphones: at a low level of the battery may cause interference.
- 🎛️ Change the codec: in the developer settings (Settings) → The phone. → Version. MIUI — Tap 7 times) select Bluetooth Audio Codec and try it out. SBC or AAC ptX.
Problem 3: The headphones are plugged in, but there is no sound.
- 🔊 Check the source of the sound, it's possible that the audio is being transmitted to the speaker of the phone. Swipe your finger through the notification panel and make sure that the headphones are selected as the output device.
- 🎧 Clean headphone jacks (if it’s a plug model): dust or contact oxidation can block the signal.
- 🔄 Reconnect the headphones: remove them from the list of devices and pair again.
Headphones are not in.|Connection is cut off|No sound.|Another problem.|It's working fine.-->
4. How to reset Bluetooth headphone settings before connecting
If your headphones have previously been paired with another device (like a laptop or tablet), they may automatically try to connect to it, ignoring the Redmi Note. 4X. This requires a hard reset of the headphones, and the procedure varies depending on the model:
| Model headphones | Resetting instructions | Notes |
|---|---|---|
| Xiaomi AirDots (Mi True Wireless) | 1. Place both headphones in the case. 2. Hold the button on the case for 15 seconds until the indicator flashes red. 3. Pull out the headphones - they will go into pairing mode. | After resetting, the headphones may require re-synchronization with each other (wait). 10-20 seconds). |
| Sony WH-1000XM3/XM4 | 1. Turn off the headphones. 2. Hold the power button and the Custom button (or NC/Ambient) simultaneously 7 seconds. 3. The indicator will blink blue. 4 once. | Reset removes all stored devices and noise reduction settings. |
| JBL Tune 500BT/510BT | 1. Turn off the headphones. 2. Hold the Volume buttons + Volume is 10 seconds at the same time. 3. The indicator will light up in red, then blue. | After the reset, you may need to reconfigure the voice assistant. |
| Apple AirPods (all generations) | 1. Place the headphones in the case and close the cover. 2. Press and hold the button on the back of the case for 15 seconds until the indicator flashes orange, then white. 3. Open the lid - the headphones are ready for a new pairing. | You may need an Assistant Trigger app to connect to Android. |
Important: After resetting, some headphone models (such as Bose QuietComfort or Sennheiser Momentum) require reconfiguration through a proprietary app. Without this, some features (such as noise reduction or equalizer) may not work.
If the headphones don’t connect after reset, check their compatibility with the Redmi Note. 4X. Some models (such as AirPods Pro 2) are optimized for iOS and may have limited functionality on Android (for example, automatic switching between devices will not work).
5 Connection Optimization: How to Improve Sound Quality and Stability
Even after the successful connection, Redmi Note users 4X Sometimes you're faced with interference, with delays, with poor audio quality, and these problems are often related to phone settings or external factors. Here's how to minimize them:
1. Select the optimal Bluetooth codec.
Default Redmi Note 4X codec SBC, It's a sound that's stable, but it's not the best sound:
- Activate Developer Mode (Go to Settings) → The phone. → Version. MIUI And tap it 7 times).
- Back to Settings → Additionally. → For developers.
- Find Bluetooth Audio Codec and select:
2. Reduce the latency of sound (lag).
Sound delay (up to) 200-300 MS) is most often visible when watching a video, to reduce it:
- 🎮 Use applications with manual sound synchronization (for example, use the same method, VLC or MX Player – they have the option of delayed audio).
- 📱 Turn off battery savings for audio-reproducing apps (in battery settings, select No restrictions for YouTube, Spotify, etc.).
- 🔄 Reconnect the headphones in low latency mode (if supported – see the instruction to the model).
3. Increase the stability of the connection.
- 📶 Avoid overloaded Wi-Fi networks (2.4GHz can interfere with Bluetooth).
- 🔋 Watch the level of charge of headphones - at a discharge below 20%, the quality of communication deteriorates.
- 🛡️ Turn it off. VPN or ad blockers – they sometimes interfere with data transmission over Bluetooth.
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For maximum stability, use headphones with Bluetooth 5.0 and newer support, even if your Redmi Note is available. 4X Modern models (for example, Xiaomi Buds 4) are backward compatible and work more reliably thanks to improved communication algorithms.
6. Alternative ways to connect: if Bluetooth does not work
In rare cases, the Bluetooth module Redmi Note 4X It may fail (for example, after a phone drop or failed update).If the headphones don't connect despite all attempts, consider alternatives:
1. Use a Bluetooth adapter.
If the phone is a problem, you can connect the headphones through an external Bluetooth transmitter that connects to a 3.5 mm connector or USB-C (You'll need an adapter. Popular models:
- 🎧 Avantek BTA-200 (Connects to audio output, supports aptX).
- 🔌 1Mii B06 Plus (USB-C, low latency video).
- 📱 Trond BT-DUO (Universal, works with all headphones).
2. Connect the headphones through AUX-cable.
Many wireless headphones (such as Sony) WH-CH710N or JBL Live 650BTNC) They support wire connection through a 3.5 mm connector:
- Turn off the headphones.
- Connect them to the phone with help AUX-cable (included or purchased separately).
- Turn on the headphones - they will automatically go into wired mode.
Note: In this case, noise reduction and control via touch panels may not be available.
3. Use applications to transmit sound over Wi-Fi.
If Bluetooth is completely faulty, you can transfer audio over the local network using the following applications:
- 🎵 SoundWire (streaming sound from phone to PC or other devices).
- 🔊 WoMic (turns a smartphone into a microphone or speaker for PC).
The disadvantage of this method is the delay of sound to 1-2 Seconds, which makes it unsuitable for video.
How to check the serviceability of the Bluetooth module in Redmi Note 4X?
7. Frequent User Errors and How to Avoid Them
Many connectivity problems arise from non-obvious errors that users make during the setup phase, and the most common are:
Error 1: Ignoring firmware updates.
⚠️ Attention: Redmi Note 4X older versions MIUI (Below 10) may have Bluetooth errors, especially with headphones on Qualcomm chips (such as AirDots Pro). → The phone. → Updating the system.
Mistake 2: Connecting the headphones in the wrong order.
Some models (e.g. Galaxy Buds)+ Huawei FreeBuds requires that the right earbud first and the left earbuds then go on, and if you do the opposite, the synchronization between the two may get lost, and the phone will only see one earbud!
Error 3: Use of non-original chargers.
Cheap cables or power adapters can damage the headphone battery, which will cause Bluetooth to work unstable. Always use original accessories or certified counterparts (for example, with MFi labeling for Apple devices).
Mistake 4: Neglecting the resetting of settings.
If the headphones have previously been connected to another device (especially on iOS), they can "remember" it and automatically try to connect.Always reset before first connecting to the Redmi Note. 4X.
Error 5: Connecting to the interference zone.
Bluetooth operates at 2.4 GHz, which is used by many devices (Wi-Fi routers, microwaves, radio phones). If the headphones are constantly turned off, try:
- 📡 Switch the router to 5 GHz (if it is dual-band).
- 📱 Turn off Wi-Fi on your phone while you connect.
- 🏠 Remove from sources of interference (e.g. kitchen appliances).