GRT Avionics

GRT let me know that you if it has any ( ) on the File name it will (say not found) Fix for this rename the file.
101UP.dat
Nav.DB
EXUP.dat
Now my Sport EX works but not my 10.1
Waiting on GRT, may have to ship it in for a fix.

I have a GRT Horizon 10.1 and a Sport EX. I am starting to put in my serial ports on doing this at home with no devices connected and with only power and ground connected. After putting in my serial ports in I wanted to update the SW, Nav, and checklist, I used the SanDisk USB-2 on the SportEX and i...

I'm updating them today, Garmin told me the 430W should work ok and if not I would have to reload the OS soft ware below the newest, and I should only use the latest OS update for the 330 not the 330 with extended twitter which I don't have. I also noticed on my PFD on my HS with the latest op SW th...

Radio man told me if I upgraded my OS on my 430W to V 5.0 and Garmin 330 transponder to V 7.02 that it may not work on some EFIS's. Has anyone updated the Garmin's and had any problems with their GRT EFIS?