Hello guys!
So I was able to access my miners, and brought one faulty home to do what you have suggested.
I did the control board recovery as BitMaxz suggested,and was able to do it, i have both lights flashing and accessing the miner,but I dont see the usual miner interface, this comes up rather :
https://imgur.com/a/guV64mZAny tips on how to advance?
Are you sure that you download the exact SD card image from bitmain? It seems the dashboard shows the cyclone kit for c5 board?