FLY MC165 Maintenance Instruction page 51

4.17 Bluetooth circuit(MT6612)
Bluetooth is a design feature of this cellphone. It is with a matching Bluetooth headset and the
phone has a container which can charge up Bluetooth headset through the main board, to
accommodate Bluetooth headset. Some of the projects may not have this function, however, the
mainboard is compatible. Please first ensure that the power is correct, according to the
phenomenon and following schematic diagram to maintain the phone.