This is an uncommon issue, but some times the vehicle can get hardly shaken by shipping, or hard landings and the microSD card inside might stop being detected.
When this happens, we need to pull it off and put it back on.
First open up the top shell: We need to open the Vehicle using the 2 mm Allen Key we sent in the package. Remove only the 3 screws as shown on the pictures below
Once you open the top shell, on the front of the Pixhawk, there’s a microSD Card Slot, with the microSD card inserted. Just push and pull off and put it back in. Reconnect the battery.
Additional Help – Ground Station
When everything else fails, you will need to install a ground control on your device for all future calibrations and this current troubleshooting process. Windows uses Mission Planner MAC uses APM planner All download links are here. Check out this instructional video that shows how to perform the connection procedures using the Telemetry Radio.
Note: When using Telemetry Radios click on the list of ports available and select the COMxx available, change the Baud Rate to 57600. In case you want to use a USB cable, then the COMxx will change, click on the list of ports available and select the COMxx available and select the Baud Rate: 115200. Baud rate location:
For Windows 8 and 8.1 Microsoft implemented what is called a ”Driver Signature Enforcement” since Windows Vista, though this is most prominent on Win 8 and 8.1, and will only let you install drivers that are on their database. As most of this software is open source, the drivers will not be listed on their database. You may need to disable that function to correctly install Mission Planner and the Pixhawk (the autopilot) drivers. For Win 8 follow this steps For Win 8.1 follow this steps