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@bojunxu123 Upload it on the system tab, not as a print job. See https://docs.duet3d.com/en/How_to_guides/Configuring_firmware#h-14-upload-configuration-via-duet-web-control
Ian
It looks like you still have all of the Pi files on there.
I suggest you re-format the SD card using the SD card formatter tool.
https://www.sdcard.org/downloads/formatter/
That should format it as FAT32. Then setup the folder structure again.