cr10s with 4.2.7 BLT

[jpmxrider489]

I am looking for some help. Im new here and have purchased the sonic pad and been using it on my other printer for a while now. But I have a cr10s which was on TH3D firmware for the 4.2.7 board. If I tell the sonic pad I have a ender 3 pro, I can get it to move right but it cant do the mesh correctly. I have changed the bed screws and what not. But im hoping for a easier solution.

I also been having a hard time generating firmware with the pad. It tells me there is no printer.cfg even though I did what was in the tutorial. Could it be because I dont know the GPIO pin on the generate firmware page.