Seiwa Black Box 1000W 50/200kHz - Manual (Page 19)

21 User Manual
2.5.1 The System Update menu
The System Update menu allows downloading the Fish Finder firmware into the
Fish Finder device. To select this menu follow the procedure:
[MENU] + "About..." + [ENTER] + [MENU] + "Update BBFF Firmware" +
[ENTER]
The current Fish Finder firmware version is shown in the System Update window
that appears on the screen.
Insert the MEDIA with the firmware in one of the chart plotter available slots, and
the press [ENTER] to update. Now select "YES" and press [ENTER] to confirm.
WARNING
Turn Off and after a few seconds turn On the BB 50/200 in case of failed
firmware upload.