Thanks RehabMan for all your help i finally solve the problem.
Please mark this as close.
If it's help to some one else, steps to solution:
1) Format the disk and star over with the install
2) Apply the last combo update (download IMG file no App Store download)
3) git to get the Xcode
4) follow your guide, for this specific model 6460b i chose config 6x60p no need to touch at any time the config.plist
5) do the sudo touch /System/Library/Extensions && sudo kextcache -u / and boot twice
Now all works battery sound network
So again thanks a lot for your help and really nice job with your scripts
Best regards
and happy new year!