I installed bmwdriver+'s custom navcore on my GO720 & GO730, so far its working great.
However if i want to enable "Map Share" i have to update the GPS through TTHome, but i cannot do so as it will replace the NavCore as it isn't recognized.
Is their anyway to install/update just "Map Share" and leave the NavCore alone? As it is now, these are the options presented to be, view attached screenshot.
Notice how i cannot untick the old NavCore update.