...bitmain already gave us freq control....fan control is there as well you just have to compile the firmware yourself after altering the code to suite your needs...
That was the case long before you, or anyone else, even began to cry on here about them "taking it away". It's funny to watch you talk yourself in nonsensical circles.
Edit:
OK, so here's the real question:
Did this
non-sourced, since you "cant read chinese[sic] so the name on the email is unknown", "engineer" tell you that Bitmain will break from it's long-standing policy and continue to uphold the warranty on any S9 that you "compile the firmware yourself after altering the code to suite[sic] your needs"?

sorry for the delay in replying....i dont feel the need to take time out of my weekends to reply to trolls so i like to wait until im back in the office and have a few free minutes to respond to your nonsense.
the email says his name is "kai". that is part of the actual email address. the name on the email is in Chinese and like i have said before i only speak english so i cant read or even come close to understanding what the characters spell out so i wont bother trying to figure that out. The guy told me we are welcome to make the firmware ourselves using the source code posted. he didnt say it will void anything but i dont see it killing your warranty IF you use it the correct way. this isnt there to lower the fan speed. i even specifically told him i have 0 interest in lowering the speed of the fans. i only want to set them at a constant FASTER speed so the miner runs cooler and the fans dont whirl up and down up and down every few seconds.
I like how you keep trying to pick apart what i have posted. you shouldnt read between the lines so much though because im pretty open honest and blunt about everything i say. My question to you is how does running the miners at a lower temp somehow cause the miner to fail?? i know sub freezing temps can be bad for electronics not make to operate at those temps but we arent talking about icy conditions here....we are talking about typical ac unit temps of about 60-70 degrees F. do you think ramping the temps to 100 degrees c and holding them there is better for the board/components/chips?? its this simple fact alone that tells me you arent familiar with hardware like your claiming you are. i work on electronics daily day in and day out and in all the years i have run my business i havent ever seen anyone that thinks running machines at higher temps and harder is better for said machine. not one single time. even people here in this very same forum in this very same thread posted their concerns for the temps of these miners and that is coming from actual hardware developers....people that have made miners themselves and know more about the components being used then you or i do and yet you still fight it as if they are complete morons and know nothing about what they have spent probably hundreds of hours if not more tinkering with. your ego is far too large for one man.
of course bitmain warranty fixes boards for a premium. hell i highly doubt they "fix" boards at all. other posts i have seen showed entirely new boards being sent back to customers as replacements not the board they originally sent in but i havent dealt with them so i cant speak from experience there. what i can say for sure is no business does this sort of thing for free....they have to make money to pay the bills so of course they repair stuff at a premium so quoting that like you found the hold grail of evidence is completely moronic and its hard to even come up with words to describe how stupid that makes you look in general. but yet again your a sensitive guy that cant accept or admit when he has been beaten so by all means keep graspin at those staws my friend.