The situation when the right earphone is working properly, and the left earphone is silent or makes strange sounds, is familiar to many owners of wireless acoustics. This is a classic synchronization failure in which the headset forgets that it should work in pairs. Often users mistakenly believe that the device is out of order, although in 90% of cases the problem is solved by a software reset.
The main reason lies in the peculiarities of the Bluetooth protocol, which sometimes loses communication between the master device (usually the right channel) and the dependent (left). Reconnection requires a complete disconnection of the connection and forced pairing again. Below we will discuss universal methods that will help to revive your Mi True Wireless or Redmi Buds.
Diagnostics and primary charge check
Before you start complex manipulations with resetting, you need to eliminate the banal discharge of the battery. Often the left channel discharges faster due to the design of the case or contamination of the contacts. Carefully wipe the metal pads on both devices with a dry cotton swab to ensure tight contact when charging.
Put both headphones in a case and leave them on charge for at least 30-40 minutes, even if the indicators show full charge. This is necessary to balance the battery cells. Make sure that the LED on the case is lit or flashing, signaling the charging process.
⚠️ Note: If after a long charge left headphone Xiaomi does not give signs of life (does not light up the indicator when retrieving), it may be a problem in deep discharge or physical damage to the battery.
Check if the touch buttons on the case are stuck, mud or moisture can block the device from turning on, clean the surface carefully with a soft cloth, and if the indicator lights up when placed in the case, but does not light up when removed, the problem may be in the proximity sensor or software freeze.
Complete Reset (Hard Reset)
The most effective way to get the left channel to hear the right channel again is to perform a hard reset, which erases the history of pairings inside the headset memory and returns it to factory settings. Before starting the procedure, be sure to remove the device from the Bluetooth list on your smartphone.
Place both earbuds in the charge case and leave the lid open. Find a function button on the case body (usually located behind or inside the compartments). Press this button and hold for 10-15 seconds. Headphone indicators should start flashing white or orange often, signaling the start of the reset process.