9/3/2024: Avidyne Tech Support can accept RMA request for all BK boxes from Avidyne Dealers. 

All inquiries regarding the AeroNav unit including Support, RMA, Warranty, must be direct to Bendix King. 
Phone number is 855-250-7027 option number 2
Email [email protected] 

Here is a list of unit part numbers that are supported by Bendix King

700-00179-700, 700-00179-710, 700-00179-800, 700-00179-810, 700-00182-700, 700-00182-701, 700-00182-710, 700-00182-711, 700-00182-720, 700-00182-721, 700-00182-730, 700-00182-731, 700-00182-800, 700-00182-801, 700-00182-810, 700-00182-811, 700-00182-820, 700-00182-821, 700-00182-830 or 700-00182-831

Descriptions look like this: INTEGRATED FLIGHT DISPLAY, AERONAV 800, BLACK BEZEL, 89000041-001    
The Bendix King IFDs have their logo (see photo above).

All pilot request for the DSF files to turn on WI-FI and Bluetooth must follow the instructions on the coupons that are found in the AreoNav shipping box.