I found the solution. the MKS Sbase I bought had no bootload installed and no one warned me. after installing bootload already works. instructions to install bootload, use a translator mks sbase bootload installby nffdasilva - Controllers
I have a MKS Sbase 1.3 that does not work. the only thing that does is to turn on the led d7 and the others are turned off, does anyone know how to solve? in my research I found a solution for anyone who has RJ1 port problems. I checked with the multimeter and there was no connection as it should. see the image below but my problem is another. the computer does not detect the MKS Sbase throughby nffdasilva - Controllers