I thought you already own an AR5B95. This requires patching.
if you want just wireless, go with DW1510, works out of the box, no patching needed
if combo wifi/BT, then try DW1550, needs patching and kexts to work
Failed update?
When it reboot, do you see an option to Boot Install MacOS from...?
Select that. Needs a couple of reboot before it done.
If that's not it, then try this
In terminal, run diskutil list
If you see a virtual drive, you need to revert it, reboot and then install update again.
See here under CoreStorage