What is the of the device you are upgrading?
Watch the progress bar inside your portable TFTP server window. Wait for the file transfer status to show . i tftp upgrade firmware version 1255 download portable
during this process, or it may become bricked. What is the of the device you are upgrading
Select and enter a static IP address in the same subnet as your target device. i tftp upgrade firmware version 1255 download portable
You can adapt it to your specific device CLI or instructions.