I have an f20bt and cant seem to get it to update from version 2.000 to ver2.0003 or 2.0004, it does not even try to upgrade to 2.0003, just starts up as normal untill the 2.0004 version sd card is inserted and that fails after reaching 100%
(approx 2 mins)
I have tried several sd cards all formatted to fat32 with default allocation.
bluetooth is 3.10fw but this upgrades and downgrades ok
is there any other way of getting this to upgrade I would love some newer maps/apps