Ark Xbox & PS4 "Unlock Tek Engrams Permanently No Bosses" - YouTube
I've killed the final boss on genisis on all difficulties and even have my alpha implant for beating it, yet I didn't unlock a single one of genisis 2's tek stuff. :
Ark GiveTekEngramsTo Command | Ark IDs
ARK PS4 Server Tips - How To Automatically Unlock Tek Engrams On Your Nitrado Server - YouTube