How to connect two headphones Xiaomi Redmi Airdots with each other: 3 working ways

The problem with the separation of headphones Xiaomi Redmi Airdots (including models Redmi Airdots S, Redmi Airdots 2, Redmi Buds 3) is one of the most common among owners of wireless headset. One headphone can suddenly stop playing sound, flash red or not turn on, the other mientras works normally, the cause lies in the failure of synchronization between the left (L) and right (R) modules, not in the breakdown of the equipment.

80 percent of the time, the problem is solved software--without going to the service center. In this article, you'll find three proven methods to restore communication between headphones, as well as a table decrypting indicators and frequent errors that users make. If you've tried to reboot the headset or reset the settings, but nothing worked, don't rush to throw the headphones away. You may have missed a key nuance.

Why Redmi Airdots Headphones Are Separating: 5 Main Reasons

Before you start repairing, it is important to understand what caused the loss of communication, and in most cases, it is not mechanical damage that is to blame, but software failures or improper operation.

Here's the top.-5 The reasons why Redmi Airdots stop working in pairs:

• 🔋 Battery discharge - if one earphone is 0% and the other is not, synchronization can get lost.
• 📶 Interference with other Bluetooth devices – if multiple headsets or speakers are working nearby, they can interfere at 2.4 GHz.
• 🔄 Incorrect extraction from the case – if you remove the headphones at the same time, the main module (usually the right one) may not have time to initialize the left one.
• 🛠️ Firmware failure – after automatic update via Mi Home or Xiaomi Wear app, the connection may disappear.
• 💧 Moisture or dust – contacts in the case or on the headphones themselves are oxidized, leading to unstable charging and synchronization.

Interesting fact: Redmi Airdots 2 and later uses Bluetooth 5.0 protocol, which should theoretically be more resistant to interference. However, in practice, many users note that these versions are more likely to lose communication due to aggressive energy saving policies.

Method 1: Hard resetting of headphones (the most reliable method)

If Xiaomi Redmi Airdots headphones don’t sync with each other, the first thing to do is perform a hardware reset, which works even in cases where the headset does not respond to buttons or is not determined by the phone.

Warning: After resetting, all user settings (such as device binding) will be removed, and you will have to reconnect the headphones as you did after purchase.

⚠️ Warning: Don't confuse hard reset with a normal shutdown. If you just press the power button for 3 seconds, the headphones will only reset, but the settings will remain. To completely reset, hold the button for at least 15 seconds until the indicators start flashing red and white alternately (this is a reset signal).

Step-by-step:

1. Place both headphones in the charging case and close the lid.
2. Wait 10 seconds, then pull them out at the same time.
3. Press and hold the touch buttons on both headphones for 15-20 seconds.
4. Release the buttons when the indicators start flashing red and white alternately.
5. Place the headphones back in the case for 30 seconds, then pull out - they should automatically sync.

If after resetting the headphones still do not connect, try to connect them to the phone manually:

• 📱 Open the Settings. → Bluetooth on a smartphone.
• 🔍 Find a device called "Redmi" in the list. Airdots_R" (headphone).
• 🔗 Connect to it – the second headphone should pick up the connection automatically.

Method 2: Manual reconnection through the main headphone

The Xiaomi Redmi Airdots headset always has a lead headphone (usually right-handed, marked R) that controls communication. If it for some reason "forgot" the left module, you can force the pair to recover.

This method works even if one of the headphones does not respond to pressing or flashes red, the main thing is that the master headphone (R) is healthy and charged.

Algorithm of action:

1. Take the right earpiece (with the letter R) and place it in the case.
2. Remove it back and wait until it turns on (the indicator blinks white).
3. Three times quickly press the touch button on the right earpiece - the voice signal "Pairing" should sound or the red-blue indicator should flash.
4. Now take the left earphone from the case and bring it close to the right (at a distance of 1-2 cm).
5. Wait 10-15 seconds – if the synchronization is successful, both earbuds blink white at the same time.

If the connection is not restored, repeat the procedure, but this time:

• 🔄 Change the headphones (try to make the left-hand lead).
• 📴 Turn off Bluetooth on all nearby devices to avoid interference.
• 🔋 Make sure both headphones are over 50% charge (at low charge, they may not sync).

💡

If you only have one headphone after reconnecting, check the stereo settings in your smartphone's Bluetooth settings. On Android, this may be the "M" option.ono/Audio Dual or Media Audio".

Method 3: Update the firmware through the Mi Home app

If the first two methods didn’t work, the problem could be with outdated firmware. Xiaomi regularly releases updates for Redmi Airdots that fix synchronization bugs. However, many users don’t even suspect that their headphones can be upgraded.

This will require:

• 📱 Android smartphone (iOS does not support firmware update for headphones Xiaomi).
• 🔌 Mi Home or Xiaomi Wear app (you can download it from Google Play).
• 🔋 Headphone charge at least 70% (update will not start at low battery level).

Instructions for updating:

1. Install and open the Mi Home app.
2. Connect the headphones to the phone via Bluetooth.
3. In the main menu of the application, find the Profile section → My devices. → Redmi Airdots.
4. Slip on the headphone icon, then select Settings. → Firmware update.
5. If a new version is available, click "Update" and wait for the process to be completed (it will take 2-5 minutes).

⚠️ Warning: Do not interrupt the firmware update or remove the headphones from the case during the process. This can lead to a complete loss of functionality of the headset. If the update has been hanging for longer than 10 minutes, perform a hard reset (see Method 1) and try again.

After a successful update, the headphones will automatically restart and should sync. If the problem persists, check the firmware version in the device settings.

💡

Updating the firmware through Mi Home is the only official way to fix software bugs in Redmi Airdots. "Simple" firmware from the Internet can finally bring the headphones out of order.

What to do if none of the methods did not help: diagnosis of hardware problems

If Redmi Airdots' headphones are still out of sync after all the manipulations, it could be a hardware malfunction.

Verification 1: Test of charging contacts

Often the problem is oxidized or contaminated contacts in the case or on the headphones themselves. Take a cotton swab, moisten it in alcohol and wipe it gently:

• 🔌 Metal contacts inside the case (3-4 pieces on each nest).
• 🔋 Contacts on the back of the headphones (small gold dots).

After cleaning, place the headphones in the case for 5 minutes, then remove and check the synchronization.

Verification 2: Diagnostics of the battery

If one earphone discharges in 10-15 minutes, and the second one holds the charge normally, the battery is a problem.

1. Fully charge the case (the indicator should burn green).
2. Take out your headphones and see how quickly each one discharges in your phone’s Bluetooth menu.
3. If the difference in charge level exceeds 30%, the battery of one of the headphones degraded.

Check 3: Mechanical damage test

Put a flashlight on the earphone speaker, if you can see:

• 🕳️ Dust or villi – carefully remove them with a toothpick.
• 💧 Footprints of moisture – headphones require drying (put in rice for 12 hours).
• 🔊 Damaged membrane is a speaker malfunction, replacement is required.

⚠️ Warning: If after all the checks, the headphones never work in pairs, but they connect to the phone separately, the problem is in the Bluetooth module of one of the devices, in which case there are two options: contact Xiaomi service center (if warranty is valid) or buy a new headphone to replace (they are sold separately on AliExpress or in service centers).

How to prevent the separation of headphones in the future: 7 rules of operation

To avoid recurring problems, follow these guidelines:

• 🔋 Charge your headphones correctly - don't leave them in a case on charge for longer than 2 hours after full charge.
• 🧹 Clean your contacts once a month with a cotton swab dipped in alcohol.
• 📵 Turn off Bluetooth on your phone when you're not using headphones. Constant connection consumes charge and can cause crashes.
• 🔄 Remove the headphones from the case at the same time – this reduces the risk of loss of communication between modules.
• 📱 Update your firmware every 3-4 months through Mi Home.
• 🚫 Do not use headphones while charging - this can lead to overheating and failures.
• 🌡️ Avoid extreme temperatures – do not leave your headphones in the sun or in the cold (optimal range: from the sun to the sun). +5°C +35°C).

Compliance with these rules will extend the lifespan of Redmi Airdots and minimize the risk of disconnection.If you exercise frequently or use headphones in the rain, consider buying a model with protection. IP54 (Redmi Buds 3 Pro, which is resistant to moisture and dust.

Frequent errors of users when restoring communication

Many Redmi Airdots owners make the same mistakes that prevent them from working in pairs.

Another common mistake is trying to repair the headphones by disassembling them, and 99% of the time, self-repairing breaks the microphone or speaker, because the Redmi Airdots body is sealed and the internal plumes are extremely fragile. If you're not a specialist, you better contact the service.

FAQ: Frequently Asked Questions about Redmi Airdots