Hi,
i updated succesfully my AvicF20 already updated with 2011 maps (CNSD-210FM), it only took 30 mins.
I'm only disappointed in this update, 2012 maps don't show some new important road changes which we're already present at the 2011 versions so upgrade is sometime downgrade...
Advanced app mode is activated now, but doesn't work properly. Only once I succeeded to see google maps, now screens stays black. AHA radio works great