In simple terms, you are shorting two specific pins on the modem's motherboard. This tricks the processor into stopping the boot sequence. It tells the device: "Don't load the OS. Wait for a factory upload command."

Install and verify Huawei test point drivers on a Windows PC to enable low-level device access for tasks such as firmware recovery, unbricking, or advanced flashing.

To enable Developer Options on the Huawei device, go to > About phone > Build number , and tap on the build number seven times. This will enable Developer Options.

: For standard driver updates, you can use the official HUAWEI PC Manager or HiSuite , though these typically handle standard ADB/MTP modes rather than the specialized COM 1.0 mode.