Originally Posted by nhemti
This isn't mean to be nasty to you but Master Resets are a load of crap. They fix issues rarely if ever. The majority of the problems experienced by people here are bugs within the code itself and can only be fixed by Ford with the release of another update.
Agreed that the code needs to be fixed. But for those that encounter bugs that cause your MFT to "lose" functionality that you had just a minute ago, are usually fixed(temporarily though) by getting the system to run "scheduled maintenance". This can be run in one of two ways, disconnecting the battery or running the delayreboot.cab. I've always used the delayedreboot.cab.
At least this has been my experience, though I don't have Navigation.