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VIII. Firmware Updates
In the root folder of the MicroSD card with FAT or FAT32 file system, copy NUPDATE.BIN, which contains
the firmware update of the Device. Insert the card into the Device and turn on the power in the NMEA 2000
network.
For 5-15 seconds after powering on, the LED will flash 5 times with a green light. This indicates that
the firmware update is successfully completed.
If the Device is already using the given version of the firmware, or if the Device cannot open the file or
the file is corrupted, the boot loader will immediately transfer control to the main program. This is done
without visual cues.
The Device information including the firmware version is displayed in the list of NMEA 2000 devices
(SeaTalk NG, SimNet, Furuno CAN) or in the common list of external devices on the chart plotter
(see the third line in Figure 1 on the next page). Usually, access to this list is in the Diagnostics, External
Interfaces or External devices menu of the chart plotter. You can also get the actual firmware version
from the first lines of YDNGSAVE.TXT file (see Section VI).
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