[sambir]

you mean no ethernet wiring, OABR to bdc. Yes some models have basic radio and even if you retrofit wiring it still wont work. These BDCs usually also dont have KCAN4.

I remember i once swapped a bdc on an F56 from basic to one with KCAN4 (came from a higher model with ethernet wiring) even then Ethernet wiring still did not work. Ended up not caring and just flashed the istep of the evo to latest with ID6. F56 wont get any major updates anymore. Just make sure the unit is activated and has latest istep OABR is then not really required,, unless somehow FSC packs are rejected after a while.