Good video! I had exactly the same problem with one of my S19JPro 104T’s- one hashboard went down and here in the U.K. also practically impossible to get repairs done at all. I used Braiins to get the remaining boards working- also a good idea to mine to their pool for zero pool fees, overclock the 2 boards slightly as Braiins will tune them pretty good and you are only using 2/3 of the power set anyway?….