respect & thanks to all developers....i've compiled this for myself...hope it will help you also...
download,unzip & flash with fastboot.....
boot_587.zip---For ARC S---i'm using this for my ARC S.
plz press thanks button if it help you & also donate if you wish to spend some money
fastboot flash boot boot_587.img
WIFI Module by daymon :-
I compiled wifi modules from original rom 4.1.B.0.587