The situation when the loved ones TWS-The headphones suddenly stop responding to commands, they always take you by surprise. You take out the case, you open the lid, but the indicators are silent, and in the Bluetooth list, the smartphone does not see the device. This is a common problem faced by owners of models Redmi Buds, Mi True Wireless Earbuds and Xiaomi Earbuds. most often the reason is not the breakdown of electronics, and in software failure or contamination of contacts.
The first thing that comes to mind is that the device is completely discharged, but even a long connection to the grid sometimes fails if the power management system is stuck, in which case the charge controller blocks the current from the battery, and you have to perform a series of manipulations to force the charging cycle to start or reset a software error.
In this article, we will discuss in detail the algorithm of actions that will help revive the headset. We will look at methods of mechanical cleaning, ways to completely reboot and check the voltage. If none of the software methods worked, the physical degradation of the lithium polymer battery is likely. Follow the instructions consistently to rule out simple reasons before contacting the service.
Diagnostics of charging case and contacts
The most common, but common, reason is the lack of contact between the pins in the case and the headphones, and the metal contacts accumulate oxidation, earwax and dust, which creates an insulating layer, and even if the case shows charge, the current may not flow to the headphone battery.
To start, take a close look at the indentations in the case and the bottom of the headphones themselves. Use bright lights to notice the contamination. A cotton swab lightly dipped in isopropyl alcohol is ideal for cleaning. Clean the contacts carefully, trying not to damage the protective coating.
Once cleaned, insert the headphones into the case and make sure they fit tightly. Often, magnets can't hold the device because of debris in the seat, check if the charge indicator on the case or the headphones themselves light up when installed.
- 🧼 Use soft dry cloth to remove visible dust from the surface.
- ⚡ Wipe the contacts with an alcohol solution to remove oxides.
- 🔌 Check the serviceability of the cable. USB and the power supply, trying to charge another device.
- 🔍 Make sure the LED inside the case lights up when placing the headphone.
If the indicator doesn't burn after cleaning, try to press the headphone in the case a little, sometimes the spring contacts in the back of the case will become deformed or fuse, and if you feel that the contact appears and disappears when you press, the problem may be mechanical wear of the case.
Hard resetting procedure
When Xiaomi headphones are not turned on, but the charging indication does appear, Hard Reset is often required.This process returns the controller firmware to factory settings and eliminates software errors that block startup. The procedure varies for different models, but the general principle is the same.
In most cases, you need to remove both earbuds from the case, then press and hold the touch zones on both devices simultaneously, hold it for a long time — 10 to 30 seconds until the indicators flash red or white several times, which is a signal that the memory of the settings is cleared.
⚠️ Attention! During reset, the headphones may emit audible signals or vibrations. Don't worry, this is a normal reaction of the device to the reset command.
There are models where the reset is done through a button on the case itself, in which case place the headphones inside, close the lid (or leave the lid open, according to the instructions for your model), and press the pairing button for 15-20 seconds. The indicator on the case should start flashing in a special mode, indicating a successful reset.
Once you've done the procedure, you need to re-pair, remove the old Bluetooth device on your phone, find it again, and connect, and often this step solves the problem when one of the channels (left or right) has stopped working.
☑️ Actions in discharge
Battery problems and deep discharge
Lithium polymer batteries used in Xiaomi TWS, If you haven't used a headset for a long time, the voltage in the cell may have dropped below the critical threshold, and in this state, standard charging may not start because it's not possible to start. BMS-board (battery management system) blocks the charge to avoid bloating.
To rock the battery, try using a low-current charger. Connect the case to USB-A low current (0.5A) can gradually raise the voltage to a level where the controller allows full charging.
Leave the device on charge for a long time - from 2 to 4 hours, even if the indicator does not light up immediately. Sometimes it takes a "push" of energy for a long time to activate the chemical processes inside the cell. If after 4 hours of charging from a weak source of reaction, the battery most likely fails.
| Symptoms. | Probable cause | Method of decision |
|---|---|---|
| The indicator flashes red. | Low charge or BMS error | Long-term low-current charging |
| The headphone warms up when charging | Short circuit in the cell | Stop charging immediately, replace battery |
| No reaction to charging | Deep discharge or chain break | "Rapproaching" current 0.5A for 4 hours |
| It only works 5-10 minutes. | Battery capacity degradation | Replacement of the battery |
It's important to understand that the life of these batteries is limited by the number of cycles, and if your headphones are more than 2-3 years old, reducing capacity and refusing to turn on is a natural aging process of the battery chemistry.
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Use only original cables or certified analogues. Cheap wires with thin veins may not provide the necessary current to start charging a deeply discharged case.
Software conflicts and firmware updates
Sometimes the hardware is good, but a software failure keeps the earbud from going to sleep, which often happens after a smartphone operating system update or Bluetooth profile conflict, and in such cases, removing the device profile completely and clearing the Bluetooth cache on the phone helps.
Go to your Android or iOS device's Bluetooth settings. Find your Mi True Wireless Earbuds or Redmi Buds, click "Forget Device" or "Cancel pairing." After that, you'd better reboot your smartphone to reset the communication protocol stacks.
For advanced users, there is a possibility of flashing through the Xiaomi Earbuds or Mi Home app. If the headphone is partially responsive (for example, one channel is working), try to find a software update. The new firmware version may contain patches for the power controller and wake-up algorithms.
- 📱 Remove the device from the list of conjugated in the phone settings.
- 🔄 Reboot your smartphone to reset the Bluetooth module.
- 📡 Try connecting from another device (tablet, laptop).
- 🛠 Check for updates in the official ecosystem app.
If the earbud doesn't turn on at all, it won't be software-enabled. However, if it turns on but shuts off quickly or is unstable, updating the firmware is a priority. Manufacturers often release patches that fix power management errors.
How to enter the conjugation mode forcibly?
Mechanical damage and moisture
And remember, physical impact: Falling on a hard surface could damage the internal soldering or tear off the wire from the battery to the board. In Xiaomi miniature devices, even microscopic disconnection of the contact leads to a complete failure of the switch.
Moisture is another enemy. Most models have IPX4 protection, which means spray protection, but not immersion or steam protection. Sweat during sports or rain can cause contacts to corrosion inside the case. If the earphone gets into the water, it can't be charged!
⚠️ Attention! Attempting to charge a wet device is guaranteed to short circuit and final death of electronics. 24-48 hours in a dry place (silicagel can be used) before connecting to the current.
Check the case for cracks or dents. If you see any impact, the probability of damage to the lithium polymer cell is high. The bulging battery can physically break the internal connections, and visually, this is sometimes noticeable by the deformation of the case or the loose closure of the case cover.
If you suspect a mechanical breakdown, self-repair requires soldering skills and a microscope. TWS-headphones are extremely small, and without experience it is easy to damage the fee completely.
When is the time to bring the device to the service
There's a line where you can't do it yourself, and if you clean your contacts, you reset them completely, you try low-current charging for a few hours, and the Xiaomi earphone doesn't turn on anyway, it's a hardware problem.
The service center will run a multimeter diagnostic, and they'll check the voltage at the exit of the case and at the terminals of the headphone itself, and if the battery voltage is below 2.5-3.0 volts and does not increase when you connect the charge, you need to change the battery or the entire board.
The service can also replace the case charger, which often breaks down, sometimes by soldering the speaker plume or microphone if the break occurs inside, often at a lower cost than buying a new original device, especially for flagship models.
- 🔋 The battery does not hold a charge for less than 15 minutes.
- 💥 The headphone fell from a height or was crushed.
- 💧 The device was exposed to seawater.
- ⚡ Case or headphone is very hot when connected to the network.
Don't ignore the signs of a malfunction. If one earphone is performing worse than another or the case is warming, these are harbingers of complete failure. Timely contact with specialists can extend the life of your audio system or save money by preventing you from buying a new kit.
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If after 4 hours of charging with a weak current and a complete resetting of the settings, there is no reaction - further independent resuscitation is useless and can be dangerous.