BMW 2016 320i lost all keys programming done by Xhorse VVDI prog and VVDI BMW tool.
Read ISN code with vvdi-prog
require Bosch ECU adapter
Follow wiring diagram to connect vvdiprog with MEVD 17.2.4_Fxx N20 ECU via ecu adapter
Read ISN code
Then program key with vvdi bmw on bench.