The Supermicro X11 LGA1151 series are mostly the same boards with some minor differences in internal and external interfaces like available PCIe slots, NICs (1 GbE, 10 GbE), IPMI, RAID Controller etc.
Look at the flashing tutorial and the board-specific section.
These issues apply to all boards. Have a look at the board-specific issues, too.
+------------------+--------------------------------------------------+ | CPU | Intel Kaby Lake | +------------------+--------------------------------------------------+ | PCH | Intel C232/C236 | +------------------+--------------------------------------------------+ | Coprocessor | Intel SPS (server version of the ME) | +------------------+--------------------------------------------------+