MJ 9302 Power Line Mainboard Repair Power Cable For iPhone 5 / 5C / 5S / 6 / 6 Plus / 6S / 6S Plus / 7 / 7 PlusAdjust the power meter the output voltage of 4.5V-5V before useConnect the power meter and find the corresponding motherboard type battery pin on the seat of the power cordBuckle the mother..