Both Alan and I purchased chinese sat navs from the same seller but on close inspection the name and software is slightly different. Main point of difference for me is there "Appears" to be no option to alter the preference of something like Disable no u turns. So for example you are at the coast and go past your point the sat nav does not come up with turn around when possible, rerouting you as much as 12 miles. Is there something in the data files I can change? Its starting to P me off.