How I managed backlight control with primo on my chinese gps

[pippolippi]

I have that came preinstalled with igo 8.3.
From the gps menu I could control the backlight, but igo couldn't.
I tried all values of "backlight_methods" in sys.txt until I found that "backlight_methods=70" did the trick, however when I upgraded to primo, that didn't work.
After many hours spent in ida pro and following many useless google results, I finally managed to write a custom Lucca_api.dll to control the backlight.
In case it could be useful to somebody else, I'm attaching a zip file with the dll and the source used to build it, as well as a readme file explaining how to use it.
Most probably there's a valid "backlight_methods" combination to do it without an external dll, but I couldn't find it.

[primary]

Mediafire link is down. Can you repost please?

[pippolippi]

Strange, it was the filebox here on austech. Edit: Oh, see .

Try this link



Edit: this one is better, no wait time: