Posted 2/20/2021 14:06 (#8846865 - in reply to #8846807) Subject: RE: Trimble Nav-900 not found
At the end of the firmware update you had to swipe from the top of the screen down to open the message popup.
There you see that the GFX750 is updating the NAV 900, if you interrupt that to to soon the firmware of the NAV 900 is corrupted.
The only thing you could do is try to do the firmware update again and wait long enough to finish it.
Which version did you use?
If it didn't work try the previous version.
Be sure the NAV is connected to the GFX750 during update.