: While holding the short, plug the USB cable into your computer.
Think of it as a physical "reset switch" for the boot ROM. It allows you to communicate directly with the CPU before the main operating system or even the bootloader loads. bg2-w09 test point
A test point is a specific physical location on a device's motherboard that, when shorted to a ground (GND), triggers a specific boot state—most commonly . Primary Use Cases : : While holding the short, plug the USB