The situation when Xiaomi Redmi headphones stop working in pairs is one of the most common problems of budget owners. TWS-The user pulls the gadget from the case, but the sound comes from only one ear, or the devices do not see each other at all in the Bluetooth list. Often this happens after one of the modules is discharged stronger than the other or after connecting to a new smartphone without first resetting the settings.
In most cases, there's no hardware breakdown, and the device is fine. The problem is that there's a software failure synchronizing between the left and right channel. True Wireless systems require constant communication between modules, and the slightest failure in the data protocol leads to desynchronization. To bring them back to life, you need to perform a series of sequential reboot and forced pairing actions.
Don't panic if the lights flash randomly or the device is defined as Redmi AirDots twice. This is the standard behavior when communication between channels is lost. Below we will discuss in detail the recovery algorithms for various models, including Redmi Buds, AirDots and Earbuds. Reconciling requires precision in operations, especially when resetting to factory settings.
Diagnosis of the problem and causes of desynchronization
Before you start to act, you need to understand the nature of the conflict. Often, Xiaomi headphones do not see each other because one of the modules "remembered" the last connection to the phone, and the second remained in standby mode. At this point, they try to work independently, instead of combining in a stereo pair. Also, the cause can be oxidation of contacts in the charging case, which causes one of the channels to not charge to 100% and goes into deep sleep.
Another common cause is a conflict of Bluetooth profiles in a smartphone. If you have previously connected a headset to multiple devices, it may try to automatically connect to the last active gadget, ignoring the current request. In such cases, the Bluetooth headphone module blocks new connections, considering the channel is busy.
It's important to pay attention to the behavior of LED lights, and if you take one out of a case and one flashes white, that's a clear sign of desynchronization. Normally, they should blink the same way, or one of them should blink fast while the other is in sleep mode. LED diagnostics save time and choose the right solution.
Basic reset settings (Hard Reset)
The most effective method, which helps in 90% of cases, is a complete reset, which causes Redmi headphones to forget all previous connections and re-enter the process of finding a partner. First, remove the device from the Bluetooth list on your smartphone. Find the list "Redmi AirDots" or "Mi True Wireless", click on the gear icon and select "Forget device" or "Disable".
Then put both modules in the charge case, make sure they fit tightly to the contacts and start charging (the indicators should light up red). Now you need to pinch the touch pads on both headphones at the same time. You need to hold it for about 20 seconds. At this point, the indicators can flash red several times, then go out or light up white. This is a signal that the reset has passed.
☑️ Checklist for headphone reset
There's a nuance for different models. Some versions of Redmi AirDots reset with double taps, others with five-touches. If the standard method didn't work, try removing the headphones from the case and clamping the sensors until they turn off, and then repeat the procedure again, holding until turned on. The exact retention time can vary from 5 to 30 seconds depending on the firmware revision.
Forced channel synchronization
If a conventional reset didn't work, and Xiaomi's headphones still work independently, a forced synchronization method would be required. The essence of the method is to make one channel become a "master" and the other one become a "sleev." First, remove the device from Bluetooth and turn off Bluetooth on the phone. Put both modules in the case and close the lid for 10 seconds.
Get both earbuds out at the same time. Quickly press 5 on the right earbud and 5 on the left. The indicators should blink often. Then put them back in the case, close and wait 5 seconds. Then pull them out again. Now they have to find each other faster. If one of them keeps blinking and the other keeps silent, then communication is not established.
The Secret Method for Older AirDots Versions
In some cases, jamming one channel helps: leave one earbud in the case (or turn it off with a long clamping), and connect the other to the phone as a mono headset. Play the sound, then turn off the Bluetooth on the phone. Put the active earbud in the case, pull out both at once and try to connect them together without the phone. Only after they sync with each other (usually one of them stops flashing) can Bluetooth be turned on on the smartphone.
Features of pairing different models of Redmi
Linea TWS-Headsets from Xiaomi and Redmi are very extensive, and each model has its own control features. For example, Redmi Buds 3 Pro have active noise cancellation and require a more complex reset procedure than the basic AirDots.
| Model | Resetting method | Indication of discharge | Feature |
|---|---|---|---|
| Redmi AirDots / Earbuds Basic | 5 touches or 20 seconds of clamping | Triple flashing red | No app to set up |
| Redmi Buds 3 / 3 Pro | Sensor clamping 10-15 seconds | Case indicator flashes white | Mi Buds M8 is required for settings |
| Xiaomi Mi True Wireless 2 | Double touch + retention | Fast flashing white | There's an ear removal sensor. |
| Redmi Buds 4 Active | Triple touch. | Pulse blue. | Low latency in game mode |
Pro Series owners are strongly encouraged to use the Xiaomi Earbuds or Mi Buds M8 firmware version of each headphone, which can be used to check the firmware version of each headphone, and if the left and right ear versions are different, they may refuse to connect, and the app will automatically update both modules to the current version, which often solves the compatibility problem.
For the caseless models (neck-mounted Redmi Bluetooth headsets), the procedure is simpler: you need to press the on button and the volume button for 10 seconds at the same time, which will return the device to factory settings. However, if it is TWS (fully wireless) models, the case and sensor method is the main one.
Problems with charging case and contacts
Often the reason the headphones don't connect is the simple reason that one of the modules doesn't have a charge, and if the right earphone is depleted, it may not be activated when it's removed until it's at least in the right ear. 5-10% The problem is that the contacts in cheap models often oxidize or fail.
💡
Wipe the headphones and case contacts with a dry lilaless napkin dipped in isopropyl alcohol, which will improve contact and ensure full charging.
Check if the charger is on when you put the headphone in the case. If the light doesn't turn on, then the current is not going. Try to move the earphone inside, press it with your finger. If the charge goes, then the problem is the mechanical press, in which case the contact group requires cleaning or bending (carefully, with a thin needle).
⚠️ Warning: Do not use metal objects to clean contacts inside the case if it is wirelessly charged or has complex electronics.Short circuit can permanently disable the power controller.
It is also worth checking the charging case itself. If it is discharged, the headphones will not be able to get a pulse to turn on and sync. Charge the case from the network adapter for at least 30 minutes before trying to pair. Using powerful blocks (fast charging) for cheap cases can be dangerous, it is better to use a USB port of a computer or a block on 1A.
Failures in the Bluetooth module of the smartphone
Sometimes it's not the headphones that are to blame, it's the phone. Bluetooth cache on Android smartphones can overflow or conflict with new encryption protocols. If Xiaomi headphones can't see the phone or vice versa, try clearing the Bluetooth cache. To do this, go to Settings → Apps → Show system processes → Bluetooth → Memory → Clear the cache.
Once the cache is cleared, be sure to restart your smartphone. This action resets Bluetooth stacks and updates service lists. It's also worth checking whether power saving mode is on, which can limit the operation of wireless modules. In Ultra-energy saving mode, Bluetooth can operate unstable or shut down.
💡
Cleaning the Bluetooth cache and restarting the smartphone solve the compatibility problem in 40% of cases when the headphones themselves are working.
If you have the opportunity, try connecting your headphones to another device (tablet, laptop, friend's phone). If they work perfectly in stereo mode, then the problem is exactly in the settings of your main smartphone. In this case, resetting the network settings (Settings → System → Settings → Reset → Wi-Fi and Bluetooth reset) can help, but this will delete all saved Wi-Fi passwords.
When service repairs are needed
There are situations where software methods are powerless. If after all the manipulations, one of the headphones is silent, does not respond to touch, and does not light up when installed in a charged case, the battery or power controller probably failed. TWS-The headphones are very small and sensitive to deep discharges, and if the device was discharged for several months, the battery could die".
Also, a sign of hardware failure is that one of the modules is constantly heating up during charging or operation, which may indicate a short circuit inside the board. In such cases, repairs are often not cost-effective, since the cost of replacing the battery and work can exceed half the cost of a new device.
⚠️ Warning: If the earphone is very hot or emits an unpleasant chemical smell, immediately remove it from the case and remove it away from flammable objects.
If the device is warranty-free, do not attempt to open the case yourself. Violation of seals (even inconspicuous) is the basis for denial of warranty service. Contact the authorized Xiaomi center for diagnostics.