actually ive got problems with changing firmwares, i used this instructions to change the firmware but it stocks in recovery mode and wont upgrade via web interface! which is different topic.
and yes i have to change the firmware because when you put your asic miner in oil , the oil decreases your fan speed so mining will be stopped cause of this fault!
but there is another way which cost about 5 bucks to use fan simulator! which was not a bad idea , and I used it and it works smoothly.
its two days now and temperature is about 70 centigrades and mining 17th/s with stock bitmain firmware for s9j 14th/s.
i havent install the thermostat to stop the hole system if something goes wrong. but i highly recommend to do so cause it could be really dangerous.
I will upload some pictures later.
and at this time I really could use some advice if anyone done this.
the oil I used was mineral oil, its odorless, colorless and tasteless but i have concerns about affect of the oil on the silicon paste.
I havent heard about the oil you mentioned but i will be do research about that! thanks
You should follow the guide for installing BraiinsOS, its basically just move a jumper (jp4) and insert the microsd card. Preparing this card might be the biggest challenge to some (windows) users (its just a "dd" for everyone else).
You turn the miner on and it will boot bOS from the card, you can leave it running like that, or you can permanently install it into the controller's nand later if you like it with an option from the web ui.
Once running there are various parameters you can change, you can run it without fans at all, or change the dangerous temp zones, etc. Pretty much anything you wan't, including disabling damaged sensors.