The failure to turn on May be because the battery is damaged, or the battery is damaged, as described below:
1. Bluetooth headset using part of the charging bank is not possible, it will not be powered on. The battery capacity of the Bluetooth headset is small, the general charging current is also small, lower than the current protection range of the mobile movie, the charging treasure will think that the headset is full, it will not enter the charging state.
2. The charger is damaged (borrow another Bluetooth headset charger to try).
3. The small battery inside the Bluetooth is dormant or broken, first try to charge for half an hour whether it can activate the battery, not contact after-sales treatment.