2. The charging indicator light of the Bluetooth headset is broken.
3. The earphone charging port or charging cable is in poor contact with the power port, the charging plug or power cable is not original, resulting in too large input voltage, and the battery has a protection board, which will automatically turn off the external power supply.
4, the line damage or circuit failure in the production process of false welding, transportation after bumpy, resulting in opening welding can not be connected normally. If it really can not be investigated and can not be used, it is recommended to find the owner or after-sales treatment as soon as possible.
solution
If you do not have a dedicated charger, you can directly find the charging interface (some are thin and round holes, some are MiniUSB universal interface), and the rated output power is also the same charger to use.
Secondly, the charging time of the Bluetooth headset is kept within 2 hours, because the charging time is too long, it will directly lead to the aging or even burning of the machine circuit board, and there will be a variety of inexplicable machine failures, such as shortened standby time, frequent disconnection, shortened call distance, and unable to turn on the phone.
1, when the Bluetooth headset is charging, the flashing blue light is normal, indicating that it is charging.
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2, fully charged, the blue light will always be on, indicating that the Bluetooth headset is fully charged.
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3, when there is no electricity, it will flash a red light, accompanied by a \"drop\" sound, indicating that it should be charged as soon as possible.
I hope the above answer can help a lot of friends, thank you for your support and encouragement, I will continue to try my best to answer all your questions for you.
The blue light is always on, which means there is a problem with the Bluetooth headset. It could be a Bluetooth headset battery problem, or something. It is recommended to contact the Bluetooth headset after-sales service to solve the problem.
1. The blue light of the indicator light is long bright (some Bluetooth headsets are green), indicating that the charging is complete.
2. If the indicator is steady red, it indicates that the battery is being charged.
3. If the headset is not rushed into the power, and the blue light has been displayed, the battery should be damaged, it is recommended to contact the after-sales treatment.