Seems like you're gonna need some additional hardware as well, like the Kufatec module:
http://f10.5post.com/forums/showthread.php?t=476762
If it's only software, the new functionality will be dropped each time the BMW dealer loads a software update or patch.
__________________
2004 e87 118d (ret.), 2007 e92 330d (ret.), 2007 e87 130i M-sport (ret.), 2009 e92 M3 (ret.), 2010 f10 535d M-sport (ret.), 2015 f10 M5 CP (ret.), 2017 f82 M4 CP (ret.)
2022 g26 i4 M50 & 2009 e70 X5 35d