Wireless headsets often have one headphone running and the other silent, or both devices unable to find each other. For the Xiaomi Airdots 2, also known as Redmi Airdots, the primary synchronization procedure is critical. Unless the left and right channels are paired together, the phone will not be able to transmit sound correctly, making using the headset impossible.
The challenge is that, unlike the more expensive models, there is no physical case with automatic pairing when you open the lid, you have to manually initiate the process by following a certain algorithm of actions, and in this article we will discuss how to perform pairing correctly, which indicators are responsible for what and what to do if standard methods do not work.
First of all, you have to make sure that both earbuds are sufficiently charged, and even if they've been sitting idle for months, the lithium polymer batteries could have run out of power, and then leave them in the charging case for at least 30-40 minutes to activate the chemicals inside the battery, and then you can start manipulating the control buttons.
It's important to understand that synchronizing headphones with each other and pairing with a phone are two different processes, and first, gadgets have to find each other, create a communication channel, and only then one of them (usually the right one) becomes a master device that transmits a signal to a smartphone, and breaking this sequence is the most common cause of errors.
Preparation for the first launch and charging
You start by visually inspecting the contacts, and there are metal pins on the inside of each earphone and inside the charge case, and they need to be clean and dry, and if the contacts have oxidation or dust, the charge may not come in and the light will not light up, leading to a false conclusion that the device is malfunctioning.
Place both earbuds in the case. The lights on the outside should turn red to signal the charging process. When they are fully charged, the red light will go out. Make sure the case is also charged, because that's where the power comes from during storage. If the lights don't light up, try to wipe the contacts with dry cloth or cotton swab.
⚠️ Warning: Do not use powerful fast-charging smartphone chargers (Quick Charge, Power Delivery) to charge the case itself. High-power current can damage the headphone power controller. Use standard headphones. USB-port 1And (5V/1A).
Once you've made sure you're charged, remove both earbuds from the case at the same time, at which point they should automatically turn on. If that doesn't happen, they may have completely discharged. Press the touch buttons on both headphones simultaneously and hold them for about 5-7 seconds until the lights flash red and then go out, which is a sign of turning on.
☑️ Pre-conjugation check
The procedure of automatic pairing between headphones
The most important step is to get the left and right earbuds to connect to each other, and once removed from the case, the indicators on both devices should start flashing white, which means they are in pair-search mode, and if only one flashes, then the second one is either off or already connected to the other device.
In normal operation, when both earbuds flash white, they should find each other within 3-5 seconds. Once the connection is established, the indicator on one of them (usually right) will go out or will flash very rarely (once every few seconds), and on the second (left) will continue to flash slowly. This is a signal that the master device is created and ready to connect to the phone.
If the white flashing continues on both headphones for a long time, then they can't see each other, in which case you need to put them back in the case, wait 10 seconds and re-take at the same time, sometimes you need to repeat the procedure 2-3 times to search timers synchronized.
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When removing headphones from the case, try to take them by the top of the case, avoiding touching touch zones. Accidental pressing can interrupt the initialization process and send the earphone to standby mode.
It's worth noting that the Xiaomi Airdots 2 model uses Bluetooth 5.0 protocol, which provides a more stable connection than the first version. However, the range of action when pairing initially is better reduced to a minimum. Keep the headphones close to each other, almost close, when you turn on.
Connection with Android and iOS devices
When the indicators show that the headphones are connected (one flashes rarely, the second does not burn or flashes differently), you can move to work with your smartphone. Turn on Bluetooth on your device. The list of available networks should appear as MI True Wireless EBs V2 or simply Airdots 2.
Click on the device name in the list. If it asks for a pairing confirmation, agree. In some cases, the system may request a pairing confirmation. PIN-The code is 0000, and once you've successfully connected, the voice assistant will tell you the status: Connected).
- 📱 Android: Go to Bluetooth settings, find the device, click Connect. Accessing advanced settings (volume, battery) may require the Mi Wear or Xiaomi Earbuds app.
- 🍏 iOS: Apple devices don't support Xiaomi's proprietary codecs in full, but the basic connection is stable.Just select the device in the list.
- 🖥 Windows/PC: When connecting to your computer, make sure that the Bluetooth adapter drivers are updated. Sometimes you need to manually select the Audio profile in the sound control panel.
If the phone sees two devices with the same name (e.g., two Airdots 2s), it means that the synchronization between the headphones has not gone, in which case the sound will come from only one channel, or the phone will try to connect to only one of them, you need to return to the step of resetting.
Resetting and forced synchronization
If the automatic connection doesn't work and you see two devices on the Bluetooth list, a hard reset is required, which returns the headphones to factory settings and forces them to re-search each other as a new pair.
To do the reset, make sure the headphones are not connected to the phone (it is better to temporarily turn off Bluetooth on the smartphone). Then press and hold the touch zones on both headphones simultaneously. Hold it for a long time - about 20 seconds. First they turn off, then turn on, then start flashing red, and only after that (~20 seconds from the start of pressing) the indicators flash red 3-5 times quickly and go out.
⚠️ Attention: The key is to hold the buttons for 20 seconds, without letting go, even when the headphones are on and off. Release the buttons only after you see a series of fast red blinks.
After reset, put the headphones in the case for 5-10 seconds, then pull them out at the same time. Now they must automatically connect to each other, and the phone should determine only one device, this is the most effective method of connecting both headphones Xiaomi Airdots 2, if previous attempts failed.
Sometimes it’s helpful to delete (forget) the device in your phone’s Bluetooth settings before resetting.This will clear the connection cache and prevent profile conflicts. Go to Bluetooth settings, find Airdots 2, click on the gear or “i” icon, and select “Forget the device” or “Cancel pairing.”
Why does the reset not help the first time?
Diagnostics and troubleshooting
Even when connected properly, there can be specific problems, such as quiet sound, communication interruptions, or audio and video desynchronization, often not because of a fault, but because of software conflicts or battery discharge on one channel.
If the sound is quiet, check if the minimum volume is set on the earphone itself. In the Airdots 2, the volume of the phone and headphones is independently controlled. Try to increase the volume with buttons on the smartphone body, and then press the volume button on the earphone itself (triple press).
Consider the main symptoms and methods of their elimination in the table:
| Problem. | Possible cause | Decision |
|---|---|---|
| Only one headphone works. | No connection between L and R | Perform reset (20 seconds) and mate again |
| Quiet sound | Different channel volumes | Increase the volume on the phone and on the headphone |
| Interrupting sound | Interference or discharge | Charge the case, remove the phone from the left pocket |
| Phone can't see headphones | Standby regime | Put it in the case, get it out, check the indication. |
And also, you should mention the environmental impact, if you're in an area with a lot of Wi-Fi routers or microwaves, the Bluetooth 2.4 GHz signal might get jammed. Try to move away from the source of the interference. If the problem is only in one place, it's the radio interference.
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90% of problems with the work of one headphone are solved by a complete reset (Hard Reset) with the retention of buttons for 20 seconds.
Management and additional functions
Once you've connected both channels, it's helpful to master control. Touch buttons on Xiaomi Airdots 2 have a limited but functional set of commands. Knowing these commands will help you avoid random listening.
A single tap on any headphone pauses the track or resumes playback. Double tap on the right earphone triggers the last number dialed or answers a call. Double tap on the left calls the voice assistant (Siri or Google Assistant).
- 🎵 Track switching: Triple tap on the right earphone switches to the next track.
- 📞 Call Deflection: Hold the button for a period of time 1-2 Seconds on incoming call will drop the call.
- 🗣 Voice Assistant: Activated by double tapping the left earphone if the function is allowed in the phone settings.
Pressing is very strong, but it's not too hard to push the earbud deep into the ear, and the sensor is very sensitive, so casual touching when you're straightening your hair can work.
How to check the battery charge of headphones?
Can I use one headphone independently?
What does flashing a red indicator mean?
In conclusion, the correct configuration of Xiaomi Airdots 2 requires a sequence of actions, especially in terms of synchronizing the left and right modules. If you are faced with difficulties, do not rush to carry the device to the service - in most cases, competent resetting and re-pairing according to the described algorithm helps.