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I did see that actually but does it work? ....... (will not solve your micromanaging issues for the fans, but you can set freq how ever high/low you want). 
HI All,
I just loaded two S9 with V2. Be patient!!! the route i have gone with is i first load the normal update, it took more than usual to come back so i loaded the upgrade fix and then the regular update for v2 takes about 15-20 minutes to come back to life.
i upgraded two for now will run for about 24 hours and if all is good i will load my other 3...
good luck
My S9 (earlier batch) accepted the normal update after a few minutes of chugging along... but then something weird happened. I lost the connection to the web interface (it's in a nearby datacenter) even though it was "alive" and accepting shares on Kano. Turns out the MAC address of the network port changed and so it was given another IP address by DHCP. Not quite sure why the firmware update would change the MAC address.