I am updating Arducopter hexa on a Pixhawk to FW version 3.4.6. The update fails with the following error message popup:
Failed to download new firmware : System.UriFormatException: Invalid URI: The URI is empty.
at System.Uri.Net.WebRequest.Create(String uri, ...
...
MissionPlanner console prints the following:
DBT_DEVICEARRIVAL
INFO MissionPlanner.MainV2 - port COM3
INFO MissionPlanner.MainV2 - Device Change 537 DBT_DEVICEARRIVAL
303572175856
DBT_DEVNODES_CHANGED
INFO MissionPlanner.MainV2 - Device Change 537
DBT_DEVNODES_CHANGED 0
Found board type 9 boardrev 0 bl rev 4 fwmax 2080768 on COM3
INFO MissionPlanner.Utilities.BoardDetect - is a px4v3
INFO MissionPlanner.Utilities.Firmware - Detected a px4v3
Looking at the firmware destribution site, it seems that there is no FW specifically for v3. (http://firmware.eu.ardupilot.org/Copter/stable-3.4.6/PX4-hexa/)
Advise appreciated!
cheers
-mikko