@Darkviod,
After installing 10.10.3 update i was no longer able to access 5Ghz WiFi
I disabled Skvo's old 5 Ghz patch and switched to using your above patch.
5Ghz is working again, but it only works for the initial boot, once system is put to sleep then 5Ghz is no longer available on wake up. I have AW-CE123H WiFi/BT4 card and the system i'm working on is my Sony Vaio Laptop (see Signature)
I suspect that it could be down to the 'old' method i'm using to get the card running which i documented around March last year :-
http://www.tonymacx86.com/mavericks...sony-vpc-se-customac-build-32.html#post774456
In summary the method involves using the following kext's
TolediaAPRT.kext & BCM4352.kext from Toledia's Reop
here.
BTFirmwareUploader.kext from EMlyDinEsH's Post
here.
And Skvo's 5Ghz & Airport Extreme patches (now applied via Clover since updating to Yosemite 10.10.x)
Up until 10.10.3 WiFi & BT4 have worked perfect, but it looks like things have changed quite a bit with 10.10.3, I Would be interested to know what your recommended install method is for AW-CE123H now that there are alternate methods and kexts ....
Cheers
Jay