B&B Electronics WLNN-AN(ER,SE,SP.EK)-DP551 - Manual - Manual (Page 81)

Airborne Enterprise CLI Reference Manual 81
Table 31 - Xmodem Firmware Update
Command Description
update
This initiates the firmware update process. The update process starts
when the host system initiates the firmware image file transfer.
The module will automatically download the image file, install the
firmware update and restart the module.
Note that any user configuration settings will not be lost during the
process.