A MASSIVE thanks to Corsair support.
I submittede a support ticket and they sent me an email containing a link to a youtube video telling you how to flash the H115i without ICUE software.
I now have a fully functional H115i Cooling system with RGB lights and fulll control in ICUE once again.
Here is the video tutorial that shows you how to flash the cooling system without ICUE software: [ame=https://www.youtube.com/watch?v=oW9C8fxU72U]https://www.youtube.com/watch?v=oW9C8fxU72U[/ame]
The hex file for the H115i RGB Platinum I have uploaded to my server here: https://craft-ee.uk/H115_Platinum_V1.1r15.zip
Why Corsair support have not put this on here I don't know - it would save them a lot of hassle in dealing with this issue!?!?
I hope this helps someone else as it did me.
All the best
Andrew