Many people have struggled with running their Focusrite VRM Box with OS X El Capitan. Here’s how I got it working:

  • Power down your Mac
  • Boot it up and press Cmd+R immediately to boot into Recovery Mode
  • In Recovery find Utilities>Terminal and type csrutil disable to (temporarily) disable SIP
  • Reboot your Mac and install the latest drivers from the Focusrite Website
  • Reboot and then stop at this point if you’d like to use the VRM Feature. If you just need an interface continue
  • Power down and boot up pressing Cmd+R
  • In Recovery find Utilities>Terminal and type csrutil enable to reenable SIP
  • Boot up and enjoy