The RGN file doesn't look right on examination. I see it's identifying as V6.00 not 6.30 however. Please explain where this RGN file came from. i.e., did you make it from a GCD file? If so give a link to that original GCD file. Had the firmware file been modified intentionally, e.g. by patching for using unlocked maps or was it a simple conversion from the original Garmin GCD?