For Battery Unlock Tool Method 1: Plug the device into an ammeter or power cable box with a USB port. Plug a three-wire power cable into the device output. Attach the battery clip of the power cable directly to the motherboard being repaired. Method 2: While the device battery is , power on the motherboard being repaired. Attach the two-wire power cable to the motherboard normally (the device does not need to be plugged in). Connect the device GND pin to the motherboard GND, and connect the I0 output pin to the motherboard battery connector IO pin. Output supports both USB-A and Type-C ports. The microcontroller is powered by a 3V button battery. Color: As Shown Material: Plastic+Metal Package Contents: 1 x Test Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.