According to the DJI website, you can get "instant" unlocking. dji.com/flysafe/geo-system
As a professional drone pilot, I take this hand-holding as an insult. It's one of the main reasons I didn't buy a Phantom 3 or 4. But, to cover their collective ass, I think you will find more geofencing on consumer drones- not just DJI.
But, as I understand it, the geofence is part of the DI-GO app. I have not tried it, but there is the UGCS ground control software that you can use instead of DJI-GO. (https://www.ugcs.com/
). There's no mention of geofencing on their website.
If you try UGCS, please do report back.
I also did not buy a Phantom for these (and other) reasons.
The new and improved
GEO system, which was just released, had no fly zones. You CANNOT unlock these instantly but have to send DJI an email or submit a request on an online form. You then get to wait for a couple of days for their answer. Some of the areas are Class G airports.
Lots of people (including me) are bitching like crazy over on RC Groups.
I do have a Mavic on order because it looks like a really nice platform because it is so portable.