Quote Originally Posted by hudriwudri View Post
you have to read and after that try to understand what you've read before.

If you need it fast, go to ESRI Thailand on Sathorn Road, they will update your Unit for ThB 450,--
Yes 450 Baht for Thai unit if map is one year old, can be more if you don't update regularly
950 Baht for a unit that is not Thai, ie not an Esri unit, European, American etc.