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Picture 2–23: Downloading the firmware to the controller
After a successful download, a brief sound is played and a message is shown.
Picture 2–24: Download complete
It is now required to restart the controller by switching off the NSG 5500.
2.9.2.8 Recovery
If a communication error occurs or the download procedure is aborted for any reason, the firmware will not
be successfully loaded.
Picture 2–25: Error during download
In this case the controller will restart into a failsafe recovery mode upon startup. In other words, the controller’s
boot loader detects an incorrect bootup and falls back into the failsafe boot loader listening mode. There is no
way to delete, overwrite or update the failsafe boot loader.
b) Erasing the flash contents on the controller and writing the new firmware.
