The situation when only one Xiaomi Airdots fails is familiar to many owners of budgetary TWS-The user may experience the left or right earphone stops making sound, flashes a red indicator, or simply does not connect to the smartphone after being removed from the case. Most often, the problem lies not in the physical breakdown of the speaker, but in the software failure of synchronization between modules.
Recovery usually requires a series of sequential steps to reboot device logic and re-pair. It is important to understand that Xiaomi wireless headphones have the ability to “forget” each other, especially if they have been in a case for a long time without charging or were connected to different signal sources.
Before you bring a device to service or make a return, you need to eliminate software errors, which occur in 90% of cases. Redmi Airdots and their newer versions, such as Airdots S or Airdots 2, are built on similar hardware platforms, so the algorithms for their recovery are almost identical. Let's look at a step-by-step plan of action.
Diagnostics of the condition of headphones and case
The first step should always be to check the physical condition and the level of charge. Often, one earphone is discharged faster than another due to poor contact with the charging pins in the case. If the indicator on one of the devices does not light up when installed in the charging case, this is the first sign of a problem.
You need to carefully wipe the contacts on the headphones themselves and inside the case with dry lilac tissue. Oxidation or ingress of earwax can block charging, making the device seem unworkable, and it is also worth checking whether the headphones are tight in the sockets - magnets must fix them reliably.
Notice how LEDs behave, if one earbud flashes red and the other is lit white or not at all, this indicates desynchronization. In normal operation, both devices should behave the same way after being removed from the case, and if one of them is silent, it may be in deep sleep or lost contact with the master device.
⚠️ Warning: If the earphone heats up while charging or makes extraneous sounds, remove it from the case immediately.
The method of complete reset (Hard Reset) TWS-headset
The most effective way to solve the problem of desynchronization is to completely reset the settings, which causes the headphones to forget previous connections and re-find each other. For Xiaomi Airdots, there is a specific algorithm of actions that must be performed strictly in order.
First, place both earbuds in the charge case and close the lid (if you have one) or just leave them in the contacts. Make sure they charge. Then remove both devices at the same time. Each earbud has a touch zone or physical button on it. You need to press and hold the touchpads on both earbuds simultaneously for 5-10 seconds until the lights go out or start flashing red.
Once the lights are gone, put the headphones back in the case. Wait a few seconds and retrieve them. Now they should go into pairing mode. It's important that at this point the phone is not actively connected to this headset — you better pre-remove the device from the Bluetooth list.
☑️ Airdots reset algorithm
The key here is to press simultaneously. If you press with different force or delay, the reset may not occur. Some models, such as the Airdots Youth Edition, require longer retention, up to 20 seconds. If the first time failed, repeat the procedure, increasing the exposure time.
Re-coupling procedure with the phone
Once you reset, you need to reset the pair between the headset and your smartphone. Open the Bluetooth settings on your device and click "Forget Device" or "Unpair" for Xiaomi Airdots. Then turn off the Bluetooth on your phone completely.
Now, re-extract the headphones from the case. They should start flashing white quickly, which means search mode. Turn on Bluetooth on your phone and start looking for new devices"AirDots_R". Click on the name to connect.
If two devices with the same name appear on the list (for example,"AirDots_L" and"AirDots_R"), This means that the headphones are not synchronized with each other, so you need to repeat the reset procedure described above, making sure that you are clamping the sensors at the same time.
What to do if your phone sees two devices?
Solving problems with audio balance and Android settings
Sometimes the hardware is good, but the software crashes on the side of the smartphone operating system. Check the settings for special features in Android. Go to Settings → Special features → Hearing (the path may differ depending on the MIUI shell or the Android version).
Make sure the channel balance slider is centered, so if the balance is shifted left or right, the sound will only go into one earpiece or one will be quieter, and you should also turn off the absolute volume level in the developer menu if it is activated.
To access the developer menu, click 7 times on the build number in the About Phone section. Then, in the developer menu, look for the "Disable Absolute Volume Level" item and activate it. Restart the phone and check the sound.
| Symptoms. | Possible cause | Decision |
|---|---|---|
| No sound in one earpiece. | Downed audio balance | Check the settings of special features |
| Headphones are not synchronized | Mistake (mating) | Perform Hard Reset |
| Quiet sound or wheezing | Grid contamination | Clean the speaker with a toothbrush |
| Fast discharge. | Battery wear or poor contact | Wipe contacts, check the case |
Cleaning speakers and device maintenance
Physical pollution is one of the most common causes of silent or no sound. Airdots speaker grids are very shallow and quickly clogged with earwax and dust. Even if visually it appears clear, microscopic deposits can block the sound.
To clean, use a soft toothbrush with dry pile. Carefully, without much pressure, clean the speaker mesh with circular movements. You can use a cotton swab slightly soaked in isopropyl alcohol, but it is important to keep the liquid out of the case.
⚠️ Warning: Never use sharp objects like needles or pins to clean the speaker grid. You can damage the membrane and the earphone will not be restored.
Also check if there is any debris inside the case that interferes with the tight fit of the earphone, sometimes the villi from clothes or dust block the charging contacts, which causes the earphone to not charge and stop working.
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Use paint tape for cleaning: glue a piece of tape to the speaker grid and sharply tear off - this will help pull the stuck dust from the depths.
Specifics of different versions of Airdots
Xiaomi’s budget headphone lineup is constantly updated, and models may have different controls. For example, the Airdots Basic and Airdots S have touch controls that require precise touch with a specific section of your finger. If you touch with the edge of your nail or in a glove, the command may not work.
Models with the letter "S" in the name often have an improved Bluetooth chip, but the algorithm for resetting them may require more accurate timing. In some cases, it helps to connect the headphones to another smartphone. If they work correctly on another device, the problem lies in the Bluetooth module of your main phone.
It is also worth considering that at a low charge level (less than 10%), some functions may not work correctly. Fully charge the case and headphones before diagnostic procedures. Unstable voltage in the network can also affect the quality of charging and subsequent operation of the device.
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If none of the software methods helped, and cleaning contacts did not give a result, most likely, the problem is in the hardware – a failed battery or speaker.