King wear KC06 black screen after flash update

hi , i have watch king wear kc06 (MT6737)
i was need to udpate it , but that’s not firmware available for my watch
so i try to flash it by another model (kospet brave firmware )
it’s same cpu MT6737, after install firmware by flash-tool and my watch like dead-body
black screen - no sound
no thing is reposed
so anyone can help me to fine kc06 firmware