Quote Originally Posted by Quarktasche10 View Post
Thanks so much.
So the only reason for the special chinese Chipsets in the Navs is to protect these two functions?
Harder to analyse a chip than to debug a special firmware?
As far as I know, there is no special chipset required. f and g are implemented in the navigation application (firmware or executable file) or plugin like 006B082300.bin today, probably to save cost. Of course, this makes it easier to reverse-engineer the f and g.


Quote Originally Posted by cwhlam View Post
Then, is it breaking the law to use (or to have a copy of) the Venus map in China?
May be. Each Venus release in China has the following disclaimers which I did not bother to post here.

* There is certain risk to use maps in this series. Think thrice before using it.
* There is no warranty or guarantee provided for using maps in this series. Please bear the consequences by yourself.
* Maps in this series are for research and education purposes. Please delete the files in 24 hours after downloading.
* Please consult your lawyer beforehand for all legal issues regarding the use of shift-corrected maps.