Used for boards with 1MB of flash memory. Newer firmware versions for fmu-v2 may have some features removed to fit the smaller memory.
Native support for companion computers, modern code architecture, and smooth simulator integration. pixhawk 248 firmware
Ensure the USB cable supports data transfer, restart the GCS, and try a different USB port. On Windows, check Device Manager for driver errors (e.g., "STM32 Bootloader"). Used for boards with 1MB of flash memory