Microchip Studio includes a command-line utility called atfw.exe, which can
perform a manual upgrade of most Microchip tools. atfw.exe is installed
in the atbackend subfolder.
atfw.exe can be used to: For details on upgrading using this utility, execute atfw.exe -h.
To do a firmware upgrade on a tool already in upgrade mode, invoke atfw the same way as an ordinary firmware upgrade. Some warnings may be displayed as the tool can’t switch the tool to upgrade mode but should proceed with the upgrade.
If a tool listing is done, the tool will have a name related to its mode. However, invoke atfw with the tool name presented to the user in ordinary operation.