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Ensure you select the correct COM port number in Device Manager.

Step 5: Finalization

Launch the EMUpgrade.exe application. Select the correct COM port corresponding to your serial cable. Set the operating mode to "Upgrade" if you are installing new firmware, or "Dump" if you are backing up the existing system. 3. Load the Firmware File new download emupgrade v2 26 137

Step-by-step instructions ensure safe updates across your entire installed base. Security & Performance Patches: Ensure you select the correct COM port number

RS232 Serial Port, USB-to-Serial TTL, and LAN (select models) and LAN (select models)