If firmware retrieval fails for Radiolink PIX6, PIXHAWK, CrossRace Pro, CrossRace, CrossFlight-CE, CrossFlight, Mini Pix, and TURBO PiX flight controllers in the Mission Planner, how can this be resolved?

Older Mission Planner (MP) versions below V1.3.51 will first connect to GitHub when retrieving firmware. Since the server is currently inaccessible, the firmware download will fail.

You will see the corresponding failure prompt as shown in the figure.

Solution: Upgrade Mission Planner to V1.3.51

MP Upgrade Steps

① Click the Help menu bar in Mission Planner.

② Tap Check for Updates at the bottom right of the interface.

③ A pop-up window will appear to prompt downloading the new version. Click YES, and the installer will be downloaded automatically.

④ Run the downloaded installer. It will uninstall the old version automatically. Once the installation completes and the new interface loads, Mission Planner V1.3.51 is ready, and you can flash firmware online normally.