Sorry to hijack the thread. They updated their server for Subaru and verified SSM4 is working. Software setup is a pain but working great.
did u follow instructions?
https://www.vxdiagshop.com/service/install-2020-07-vxdiag-subaru-ssm3-ssm4.html
The factory tool costs thousands. The VxDiag subaru device is far from perfect but it helps out. it connects all the control modules easily, and change the Body Integrated Unit programming..