Click . Do not refresh the page or disconnect power until the "Success" message appears. Method B: Command Line (CLI/FTP) For headless systems, use a secure transfer protocol: Open your terminal or command prompt. Connect to the device via FTP/SFTP: ftp 192.168.1.1 . Navigate to the update directory: cd /update/fw . Upload the package: put DX80CE820SYN213BRELPKG .

Navigate into the newly created directory (it often has a similar name) and run the install script.

: Running an install command on an unknown package string is highly risky without a verified source. How to "Review" It Safely

If the package supports manual installation through a script or executable, follow these steps: