http://mr-fix.info/mmi-2g-software-update-version-5570/
MMI 2G software update – versions and features
Europe 2120
Volume limit increased.
Navigation announcements muted while phone call.
Music volume lowered while navigation announcements.
Direction arrows when searching POI.
Map label at low zoom fix
Europe 3460
3D maps (bird-view).
Fixes for CD chaners, radio tuner, amplifiers, bluetooth, TV tuner, DAB.
Europe 4220
AMI USB sources support.
Enhance user interface graphics.
Fixes for CD chaners, radio tuner, amplifiers, bluetooth, TV tuner, DAB.
Europe 5150, USA 3360, Russia 5540
AMI iPod compatibility
AMI support for ACC and WAV files over USB
Bluetooth handsfree fixes
Europe 5570, USA 4610, Russia 6030
Convenient switching between media sources.
Fixed for amplifier, TV tuner, MP3 CD changer, head unit.