After writing:
A: No. Updating firmware requires a special update package and often changes the bootloader. If you want 5.030 or 5.047, you need a dedicated full image for that version. kess v2 5017 sd card image download full
A legitimate "Full" 5017 image usually weighs between 1.2GB and 3.8GB (uncompressed). If you find a file that is 4MB, it is just the firmware update, not the full SD card dump. After writing: A: No