Hi Leon,
thank you for your response, I created a new post some time ago, the link is here:
https://osxlatitude.com/index.php?/topic/1836-m4400-research-thread/
I don't understand why nobody participates ? am i not well explained ?
I need help to improve the configuration of the M4400.
PS:My English is not very good because I am French
thank you very much for your help !!
Thomas