Hey guys,
Same issue over here. I updated the firmware on my H115i Plat and it failed, but still worked, kinda. Contacted Corsair and they told to me to do a fresh install of ICUE, which I did. They gave me an older version and I tried to update the firmware on it once again, this time it completely bricked the unit. Fans go at 100%, RGB is non existent and I am now getting a cpu fan error. Pump still works however.
So here I am, I had to resort to letting the GPU control the fans but now awaiting a response from Corsair, who will hopefully provide me with a firmware to reflash or something of the like. Why has a fix not been issued a year later? I guess ASMedia is not interested in Corsair's problems or the problems of the customers.