Help me install SXT 5 (5HPnD, RBSXT5HPnDr2)

Mikrotik SXT 5 (5HPnD, RBSXT5nDr2)
I can not download over the network, I receive a beep but 5HPnD does not receive ip

@enaveste, welcome to the community!

https://openwrt.org/toh/mikrotik/rb91xg_5hpnd#flash_openwrt_to_mikrotik