Ok, I've just been on bitmain support yesterday all night.
The RED L.E.D that is lit up called "RF1" indicates that the hashboard is working. So the hash board in my case that isn't working, the L.E.D isn't lit up. There is a chance that if you clean the thermal paste off and make sure there are no short circuits, then the board will begin to operate normally, however this is only a chance. In my case, this didn't work, however I still think there is some shorts on a very small scale that I can't see.
I have been working on a C1. I used cleaner and purifier and it still did not do the trick on some. 1 blade works perfect after it.
I think I'm sitting it in parts unless I decide to give other 3 one more try. I think from doing it 3 are good blades and one has one or two bad chips possibly if I could get them all to work right.
I have figured out it is a time consuming process to do it right to say the least.