Loaded firmware for board id: 9,0 size: 1644177 bytes (79.02%), waiting for the bootloader

i uploaded the building code into cuba,but i meet “Loaded firmware for board id: 9,0 size: 1644177 bytes (79.02%), waiting for the bootloader…”
i don’t how to solve this proble,please tell me the solution baout it?
thanks.

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