@Alvinhyc
Are you sure that your BMW Navigator VI has both Firmware Version 10.00 and HWID of 4044? The only Nav V1 of which i'm aware has latest fw V5.80 and HWID 2584. Please check both and then advise before we can help further: [Only registered and activated users can see links. ]. Supply a link to that V10.00 fw if you have it.