I bought 255w in switzerland but found it did not have lane-assistant and junciton view under europe map. But the same type sold in other countries such as China do have this function.
So could it possbile to update 255w ? I believe it is a software restrcion preset by Garmin and not a hardware limitation.
But that method is for garmin used in Asia, ie Singapore and Malaysia. I do not think it will work with the europe maps.
Anyway, thanks again for your reply.