Connect one end of a to the computer's DB9 serial port.
: Wait for the progress bar to reach 100% and for the receiver to automatically reboot. Important Safety Note alirs232upgradetoolv120 downloader full top
: Choose the upgrade type (e.g., "allcode+bootloader" for a full flash). Connect one end of a to the computer's DB9 serial port
: Requires a NULL modem cable and a PC with a physical COM port or a high-quality USB-to-RS232 adapter. alirs232upgradetoolv120 downloader full top