The TMC is not gone it is just disabed due to the software update. Maybe you are the unlucky exeption but I do not believe that.

The following menu "names" are my translations from German so it must not be 100% what you see on your screen.

In the standard navi setup menu you should have an entry "Traffic information". In this menu you find a point "RDS-TMC". Here you can activate this option again. Below in the same menu you fin "No traffic info" for disabling TMC.

It should just be disabled. BM24 should work the same in case it got TMC option already. Early BM24 do not support that option.

For further information please refer to the BMW Navi manual (you find it there as well)

Regards
Dejwoker