Just received my unit, purchased from Loftek via Amazon. Initially didn't think this was the wide angle version since the manual only references the F500HD, however it does have the longer lens which I believe means its wide angle. Anyway, the firmware in the menu simply says V1.00 No letters afterwards. Safe to assume I have a fake? It does have the 4 side buttons, but its an all black case with no labels. Any other ways to tell if its fake?