mobile

Hi,
I have used XDA for a while now for useful info on rooting and customising my phones with custom roms.
I am looking for some help.
I own a Galaxy Mega I9205 and have just installed the Note 4/S5 rom by bevin.
Wasn't easy as there were 2 different threads and 2 different methods.
First way of flashing the rom followed by a fix for I9205 users didn't really work. The fix pretty much wiped the rom and phone wouldn't boot. The thread stated to flash a stock modem of which I can't find any (not that I'm 100% sure what I'm looking for).
Found a .bin file HLOS-BIIN and flashed this after flashing the rom but without the fix and pretty much had same issue.
I tried the method on the second thread of downloading his backup file and restoring that. Had to re-flash stock rom first before this to get everything working again but all is pretty much good. Rom is near perfect and looks great. I have mobile data working and seems pretty stable.
The issue I have now is that my WiFi will not switch on. I flick the switch and it immediately deactivates itself.
I have tried several ways mentioned on here to sort it out but nothing works.
I tried the vcore2 root but that pretty much wiped the rom so yet again had to go through the whole process.
I believe the kernel controls WiFi functionality.
Does anyone know of any decent kernels for this device or any ways of fixing this WiFi issue?
I don't want to go back to stock because I love the whole look and functionality of the note 4 / S5 rom and looks great on this big screen.
Any help would be greatly appreciated.

Karl