Hello everybody,
After lurking here and there and searching for posts and threads for quite some time, even on cached pages, I decided to make a thread just to be sure on how to safely upgrade my old navi.
The unit is an european f900bt, I succesfully upgraded it to version 2009000 from the pioneer official site using a 64gb microsd inside an sd adapter, formatted in fat32 (it didn't read the original exFAT). So it has firmware v 02 but map version v 01.
Here's where the problems may start. I have only 2 other updates from the official site, and according to pioneer itself, the other upd
