Hello Ruan
So... i am sorry.  I can close this help request now.  perhaps it was my error.
The last attempt did work.   i don't know exactly what i've done differently.  i know that when it prompt to turn off ignition and wait, i did it but not troo much
also, there is a window, that will ask you to enable or disable  something, i don't remembrer exactly what... i changed that, then make my coding et voila. all is good.
Sorry not to have updated that post.
Still love my gs911