Hi there, Well I can sadly say that I may have a related case. I say "may" only for the fact that I introduced diodes to help most with noise and may have assisted in the failure. Whilst I was always happy with the build of my UM2+, In Australia, they are far from competitive in price and it was my first printer.... That said it was a reliable machine but I won't be getting another, and have moved away from this company and their products, so like @Markosjarks is considering. However I have the picture of my board here and as you can see, the brown around the drivers as most I have seen online for this model, this was a lot darker as I had tried to clean the carbon stain away from the board from time to time as I was concerned for build up given the board position and the likelihood of dust built up. Then, one day, no more. It did not boot up. I tried to clean it as much as I could to try to see if I could resolder the area, but the area is brittle and then I thought about moving the ID of the X over to the unused E2. The Risk here is that Y may end burning out and so I thought I'd buy a new board - OMG $$$$ considering Computer high-end motherboards and their price, so I am looking at a third party so I can use the printer and the many many rolls of 3mm I have. I have no lessons learned here for me other than I guess if the board has an additional extruder, perhaps this wasn't left on purpose for DIY tinkering, more so a design decision after results from the manufacturing and was too costly to remove in order to release to market. Any advice on a replacement board our there would save me a bunch of time. Thanks in advance.