Xiaomi Redmi AirDots 2 (or Redmi Buds 2 in some regions) remain among the most popular budget headphones. TWS-But even these simple gadgets sometimes have problems first turning on or re-activating after a long period of downtime. This article will help you understand how to properly turn on headphones, synchronize them with each other and connect to a smartphone - taking into account all the nuances of firmware and hardware features.
We're going to look at not only basic actions (pressing a button), but also hidden features that the manufacturer doesn't always specify in the official documentation, like how to get the headphones to go into pairing mode if they're not determined by the phone, or what to do if one of the headphones doesn't turn on, and we're going to focus on common mistakes that users make when they start up, and give you tips on how to care for the device to extend its life.
If youβve just unpacked a new pair of Redmi AirDots 2 or pulled them out after months without using them, this guide will be your guide. And for experienced users, weβve prepared unique tips for optimizing the performance of headphones that you wonβt find in the standard manual.
Preparation of headphones for the first turn on
Before you press the power button, make sure the headphones are ready to go, which is especially important if you have purchased them from hand or stored them for a long time without using.
- π Battery charge. Even new headphones can run out during transportation. Place them in a case and plug them into the charger for 10-15 minutes. The indicator on the case should flash or burn red/white.
- π§Ή Check the metal contacts on the headphones and inside the case, they should be clean, without oxidation.
- π¦ The box should have headphones, case, cable. USB Type-C (or Micro-USB in early versions), instructions and spare instalments (if included).
If the headphones were stored without a case, their batteries could run deep, which would require a forced recharge: keep them charging for 30 to 40 minutes, even if the indicator does not respond. Sometimes it helps to connect to another power source (for example, to a power bank instead of an outlet).
β οΈ Note: Do not use adapters with output current more for charging headphones 1A, it can shorten battery life, and it can make the most of the original cable and power supply. 5V/0.5And.
Also, look at the headphone firmware version. Redmi AirDots 2 has revisions with different chips (for example, Jieli AC693N or Realtek RTL8763B), which affects the on-board algorithm. You can find out the version by writing on the inside of the headphone or through special applications like Mi Home (after connecting).
Basic way of inclusion: button on headphones
The standard method of activating Redmi AirDots 2 is extremely simple, but it has its own nuances.
- Take both earphones out of the case. They should automatically turn on (indicators flash white or red).
- If automatic switching does not occur, press and hold the touch button on each earphone for 3-5 seconds until you hear the beep and see the indicator blink.
- Once turned on, the headphones should synchronize with each other (the indicators flash alternately), the sound signal will confirm successful pairing.
Important: Redmi AirDots 2 uses automatic allocation of roles between headphones (left/right). If you didn't turn them on at the same time, you may need to reset for proper synchronization. Also note that some firmware only turns on the headphones when removed from the case - the button is only used to put into pairing mode.
The headphones emit an audible signal when turned on
Indicators flash white/red
In the list of Bluetooth devices appears "Redmi". AirDots_2_R" or "Mi True Wireless"
Both earphones are defined as one device.-->
If the headphones donβt turn on the first time, try:
- π Reboot the case: disconnect it from charging, pull out the headphones, then place them inside again and close the lid.
- π Connect the case to another power source (sometimes the problem is a faulty cable or adapter).
- π§² Check headphones for the presence of a magnetic blocker: in some batches there are magnets that turn off the headphones when the case cover is closed.
Interconnection mode: how to connect to the phone
Turning on your headphones is just the first step, and to make it work with your smartphone, you need to activate the pairing mode. Here's how to do this:
- Make sure the headphones are on (the indicators are flashing).
- Press and hold the touch button on both headphones simultaneously for 8-10 seconds until the indicators start flashing red and white alternately (connection waiting mode).
- On your phone, turn on Bluetooth and find it in the Redmi Device List AirDots_2_R (Or something like that. Click to connect.
If the headphones donβt appear in the list, try:
- π± Reboot Bluetooth on your phone: Turn off and turn on the module again.
- π Remove the headphones from the case and insert back, then repeat the attempt to pair.
- π΅ Remove all previously saved devices called Redmi or Mi from your phoneβs memory β they may conflict.
| Problem. | Possible cause | Decision |
|---|---|---|
| Headphones are not visible in Bluetooth | The pairing mode is not activated | Hold the buttons for 10+ seconds until alternate blinking. |
| Only one headphone is connected. | Not synchronized with each other | Reset the headphones (see section below) and repeat pairing |
| The sound is interrupted. | Weak Bluetooth signal | Bring your phone closer or remove sources of interference (Wi-Fi routers, microwaves) |
| Headphones are discharged quickly | Outdated firmware | Update the software via the Mi Home app (if available) |
β οΈ Attention: On Android 12+ iOS 15+ You may need additional location permission to connect Bluetooth devices. If the headphones don't connect, check your privacy settings.
It is important for iPhone users to know that Redmi AirDots 2 supports an AAC profile but may not work properly with aptX. If the sound is distorted, in your Bluetooth settings on your iPhone, turn off the High-quality Audio option (if available).
π‘
If the headphones are plugged in, but only one is playing, try hand-assigning roles: pull both earphones out of the case, wait for the double signal, then put them back and pull them out again, which will reset the left/right distribution.
Resetting settings: if the headphones are not turned on
If standard methods don't work, you might need a hard reset, which will bring the headphones back to factory settings and often solve connection or synchronization problems.
- Place both headphones in the case and close the lid.
- Open the lid, but don't pull out the headphones. Press and hold the buttons on both headphones simultaneously for 15 seconds.
- The indicators should go out, then flash red (reset performed), after which the headphones will automatically reboot.
After the reset, you'll need to pair the phone again. Note that the reset does not affect the firmware version, but removes all the saved connections.
If the reset didn't help, check:
- π Charging contacts in the case - perhaps one of the headphones is not charged and therefore does not turn on.
- π Battery status: If the headphones do not hold the charge for more than 10 minutes, the battery may fail.
- π‘ Interference from other devices: try resetting in another room, away from Wi-Fi routers.
What if the headphones are not synchronized after reset?
Problems with inclusion: diagnosis and solutions
Even after resetting, there may be problems, and let's look at the typical scenarios and how to fix them:
Headphones do not respond to the button
Possible causes:
- π§ It is humid (even if the headphones are protected). IPX4, contact could be oxidized).
- π Full battery discharge (requires charging 1-2 hours).
- π οΈ Mechanical breakage of a button (often after falls).
Solution: try charging the headphones in a case for 30 to 60 minutes, then retrieve and check the reaction to pressing. If the button doesn't work, you may need repairs.
One earpiece is off.
A common problem related to:
- π Bad contact in the case (try to clean the contacts with alcohol).
- π Different charge levels (hold both earbuds on charge for 1 hour).
- π‘ Synchronization loss (reset as described above).
If the problem persists, check if the dead earphone is defined as a separate Bluetooth device, and if so, remove it from the list and pair it again.
The headphones are turned on but immediately switched off.
This may be related to:
- π Critical discharge (charge the case and headphones for at least 2 hours).
- π§² Activation of the magnetic sensor (check if there are any foreign magnets nearby).
- π€ Firmware failure (try to update the software via Mi Home if available).
π‘
If the headphones turn off 2-3 seconds after turning on, the protective mechanism most likely worked because of the low charge.
Additional features and hidden capabilities
Apart from basic inclusion, Redmi AirDots 2 supports a few hidden features that few people know about:
- π΅ Low Delay Mode (for gaming): Press the touch button on any headphone three times during playback.The sound will become monophonic, but the latency will be reduced to 80-100 ms.
- π Volume control: double tap on the right earpiece increases volume, on the left - reduces (does not work on all firmware).
- π Voice Assistant: Hold the button on any headphone for 2 seconds to activate Google Assistant or Siri.
- π Charge check: open the case cover next to the connected phone - a notification with the charge level of the headphones and case will appear on the screen.
Some firmware also offers equalizer configuration via the Mi Home app (headphones section), and if this option is not available, you can use third-party apps like Wavelet (Android 10+ is required).
For advanced users, if you are confident in your skills, you can flash your headphones with custom firmware (for example, Flashing Tool for TWS).
- Increase the maximum volume.
- Add support for aptX or LDAC (if hardware is available).
- Change the sound signals and voices.
β οΈ Warning: Unofficial firmware can lead to loss of warranty and unstable operation.Before firmware, back up the original software.
Care and extension of service
To make Redmi AirDots 2 last longer, follow these guidelines:
- π§Ό Clean: wipe your headphones and case once a week with an isopropyl alcohol wipe (70%). Don't use wet wipes - they can leave you divorced.
- π Charging: Do not leave your headphones on charge for more than 4 hours in a row.Use the original cable or certified USB Type-C. Once a month, discharge the headphones "to zero" (until automatically shut down), then charge to 100%.
- π‘οΈ Temperature: Avoid using headphones at temperatures below 0Β°C or higher than 40Β°C. Keep them in a dry place.
- π§ Replace silicone tips every 3-6 months β they lose elasticity and worsen sound insulation.
If the headphones are not used for a long time (for example, several months), store them in a case with a charge of 40-60%. Full discharge or, conversely, 100% charge for a long time shorten the battery life.
To restore the battery capacity, you can use the "calibration" method:
- Completely discharge the headphones (until automatically switched off).
- Place them in the case and charge 8 hours without interruptions.
- Repeat the discharge / charge cycle 2-3 times.