If the dongle is also lost, you may need to purchase a new FL-III license. As of 2025, a new single-user license costs approximately depending on the version (Standard vs. Professional).
Ensure you are entering the characters exactly as printed, including any dashes. fanuc ladder iii serial number
When installing FANUC Ladder III, the installer requires a valid serial number to proceed. Depending on the version (e.g., Version 5.x, 7.x, 8.x, or the latest 9.x), the software utilizes different licensing mechanisms. Standalone Licensing vs. Key Codes If the dongle is also lost, you may
: FANUC requires the software serial number to verify service eligibility and provide troubleshooting for the LADDER-III environment. If the dongle is also lost
