Xiaomi Redmi Airdots wireless headphones (including Redmi Airdots S, Redmi Buds 3 and its peers) often face the problem of a pair gap between the left and right earphones. Instead of stereo, you hear a monosound from only one device, and the second one either stays silent or connects as a separate device, the reason lies in the failure of synchronization between the headphones β they need to be paired again, and sometimes reset to factory settings.
In this article, you will find current ways to restore pairs for all versions of Redmi Airdots, including the rare cases when the standard manual does not work.
- πΉ Step-by-step pairing through a button on the body (for models with physical buttons)
- πΉ Resetting headphones to factory (if not determined by the phone)
- πΉ Manual synchronization of the left and right earphone (if one of them is "hanged")
- πΉ Solving Connection Problems with iPhone, Android and Windows
All methods are tested on firmware from 2023 to 2026 and are relevant to the latest versions of MIUI and Android 13/14. If your headphones are older than 2020, some steps may differ - see the FAQ section.
1.Why did the Redmi Airdots headphones disconnect?
The main reason is a software synchronization failure between the left (L) and right (R) earphones, which is due to:
- π΅ Disconnecting the device (e.g., battery power up to 0% or forced Bluetooth shutdown).
- π Connect to multiple devices at the same time (earphones "tangle" in pairs).
- π± Updates to the firmware of the phone or the headphones themselves (occurring after updates) MIUI 12+).
- π Uneven battery discharge (one earphone discharged faster than the other).
Less commonly, the problem is physical damage, such as moisture entering the contacts of the charging case or falling headphones, in which case pairing may not help and repairs will be required.
β οΈ Warning: If the headphones still don't sync after reset, check the contacts in the charging case - often oxidation of metal pads leads to failures.
2. Standard pairing: how to pair headphones
This method works for Redmi Airdots of all generations, including Redmi Buds 3/4. If the headphones were previously paired but disconnected, follow the following steps:
- Place both headphones in a charge case and close the lid for 10 seconds. make sure they start charging (indicators should flash or burn red).
- Take both earphones out of the case. They should automatically turn on (white/blue light flashes).
- Press and hold the touch button on both headphones simultaneously for 10-15 seconds until the indicators start flashing red and white (pairing mode).
- Place the headphones back in the case for 5 seconds, then pull them out. They should sync (the indicators will light up blue and stop flashing).
- Connect your headphones to your phone via Bluetooth. One name should appear on the list of devices (e.g. Redmi). Airdots_R Mi True Wireless EB).
If two separate devices are displayed in the phone after these actions (Redmi). Airdots_L redmi Airdots_R), proceed to resetting settings.
βοΈ Preparation for interface
3.Reset Redmi Airdots settings to factory
If standard pairing doesn't work, do a full reset, which will remove all the stored connections and return the headphones to the "out of the box" state.
Instructions for models with a physical button (Redmi Airdots 1st generation, Redmi Buds 3):
- Place both headphones in the case and close the lid.
- Press and hold the button on the case (usually side or bottom) for 20 seconds until the indicator flashes red.
- Open the case cover β headphone indicators should flash white (reset mode).
- Remove the headphones and hold the touch buttons on both for 10 seconds until you hear the beep.
Instructions for models without a button on the case (Redmi Airdots S, Redmi Buds 4):
- Remove the headphones from the case and hold the touch buttons on both for 15 seconds until the indicators start flashing red and white.
- Place the headphones back in the case for 10 seconds, then pull them out. They should automatically sync.
β οΈ Warning: Once reset, the headphones can connect to the phone as two separate devices: π± On Android: Remove both devices from the Bluetooth list and connect again. π On iPhone: Forget both devices in Settings β Bluetooth and perform pairing from scratch.
What if the headphones are not turned on after reset?
4. Manual synchronization of left and right earphone
If the headphones still don't sync after reset, try forced pairing manually.This method works for the Redmi Airdots S and Redmi Buds 3/4.
Steps:
- Take both headphones out of the case and wait until they turn on (indicators flash white).
- Press the touch button of the right earphone 5 times. The indicator should start flashing red and blue.
- Press 2 times on the touch button of the left earphone. the indicator should stop blinking and light up blue.
- Place the headphones in the case for 5 seconds, then pull them out. They should sync automatically.
If the indicators continue to blink differently, repeat the process, but start with the left earpiece (5 taps on L, 2 taps on R).
| Color of indicator | Meaning | Action. |
|---|---|---|
| White (blinks) | Headphone in connection mode | Ready to pair with the phone |
| Red and white (blinks) | Reset/synchronization mode | You need to hold the buttons or put in the case |
| Blue (burns constantly) | Headphones synchronized | You can connect to the phone. |
| Red (flashing) | Low charge or error | Charge the case and headphones. |
5. Connection problems with iPhone, Android and Windows
Even after successful synchronization, headphones may not work properly with different devices.
π± Android (MIUI, Samsung, Pixel, etc.)
If the headphones are connected as two separate devices:
- πΉ Remove both devices from the Bluetooth list.
- πΉ Reset the headphones (see Section 3).
- πΉ Turn on the developer mode on the phone and turn off AVRCP 1.6 (sometimes this interferes with synchronization).
π iPhone (iOS 15β17)
On the iPhone, Redmi Airdots headphones can be connected with a delay or only in mono mode.
- πΉ Forget the device in Settings β Bluetooth.
- πΉ Reboot your iPhone.
- πΉ Connect the headphones in "Other sound" mode (in the Bluetooth control panel).
π» Windows 10/11
On PCs, headphones can be defined as Headset to fix:
- Go to Settings β Devices β Bluetooth.
- Remove the headphones from the list.
- Reconnect and select the "Stereo" option (not "Headset").
π‘
If Windows earphones only connect in mono mode, update the Bluetooth driver through Device Manager or use a Bluetooth 5.0+ adapter.
6. Frequent errors and their solutions
Letβs look at the unusual situations that users face:
π΄ One earpiece is off.
If one of the headphones does not respond to pressing and does not blink:
- πΉ Check the contacts in the case (possibly oxidation).
- πΉ Place the headphone in the case and wait 1 hour - sometimes the controller "hangs" when discharged.
- πΉ Try connecting the headphone to another phone - if it is not determined, a breakdown is possible.
π The headphones are constantly disconnecting.
If a couple breaks up during an audition:
- πΉ Turn off Bluetooth power saving in your phone settings.
- πΉ Make sure your headphones are over 50%.
- πΉ Update the headphone firmware through the Mi Home app (if available).
π§ The sound is interrupted or there is interference.
Causes and solutions:
- πΉ Interference from other devices: turn off Wi-Fi at 2.4 GHz (switch router to 5 GHz).
- πΉ Weak Bluetooth signal: Keep your phone closer to the headphones (within 1 meter).
- πΉ Sound Codecs: Select Bluetooth Phone Settings SBC instead AAC.
π‘
If the problems persist after all the manipulations, check the headphones on another device, if they work normally, the problem is in the settings of your phone or PC.