Connect your device in download mode (see below) to see which COM port your computer assigns it, then mirror that setting inside GXDownloader. Set the Baud Rate to standard defaults (e.g., 115200 or 921600 for faster flashing if supported). Step 3: Connect the Device
Understanding GXDownloader Boot V1.0.3.2: Features, Uses, and Safe Downloads gxdownloader boot v1032 link
: Click the "File" or "Browse" button and select your target firmware .bin file. Initiate the Flash : Click the Start button in the software. Connect your device in download mode (see below)