It's probably the Bluetooth headset setup. We know that Bluetooth earphones can be set to only use one, whether another earphone that is not used can not be charged under its Settings? There's no sound on this headset, just an inference.
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Can we take inspiration from the way Bluetooth connects one headset to two?
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1, first of all, in order to solve the problem of only connecting one Bluetooth headset, open the cover of the Bluetooth headset charging room, and then take out the headset. 2. After taking out the headset, put the headset back to the distance according to the corresponding position, and the indicator light will turn on. 3. Then close the cover of the charging compartment of the Bluetooth headset and wait for 1 minute. 4. Finally, take out the headset that can be connected, press the touch area on the back of the headset for a long time, and when the indicator flashes red and blue, it means that it can be reconnected. After the earphone is connected, take out the earphone that cannot be connected, and the ear will be connected. In this case, the other one can also be connected.
First of all, we must find the cause, generally caused by Bluetooth headset battery damage, or damage to the charger, check whether the Bluetooth headset charger is intact, and try to use the original charger to charge the Bluetooth headset.
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If the charger is good, consider that the Bluetooth headset battery is damaged, you can bring the machine, invoice until the nearby maintenance network, detect, repair or replace the battery.