Locate the provided SHA-256 or MD5 checksum string on the manufacturer’s download page. Open your workstation's terminal or command prompt. Run the verification command based on your OS:
Always verify the of the downloaded file against the vendor’s published value. A mismatched checksum indicates file corruption and will likely cause the upgrade to fail. i tftp upgrade firmware version 1255 download new
Run your TFTP server software on the PC. Most free TFTP tools are straightforward: Locate the provided SHA-256 or MD5 checksum string
Enter the privileged execution mode, often by typing "enable" or "admin." often by typing "enable" or "admin."