It's definitely not fake. Your 2007 is a US 'wing with the OEM nav unit it's HWID is 0265 and therefore should it accept the upgrade. I don't think the firmwares are incremental so you should be able to load 4.7 over anything lower than 4.6 but you could try do it in steps if you have 4.5 or lower in case the updates aren't cumulative. Maybe you need to reset it as described in [Only registered and activated users can see links. ] of this thread. All at your own risk of course.