To be precise, it is low voltage, low battery suspended animation phenomenon! The solution is very simple, in the morning, I carried out a simple test on this problem, took a Bluetooth headset for a long time, charging, the result of the red light has been flashing, the electricity does not go in, and can not open the machine (ask, no electricity how to turn on).
Need to activate the battery! No need to disassemble anything! Solution: Short connection of the positive and negative poles, the time should not be too long. Preferably in the case of charging, short 1 second release! The battery is activated