The error message typically occurs when a Digital Audio Workstation (DAW), like Cubase or Ableton, attempts to initialize the Focusrite driver while it is already in use by another application or has been "locked" by the Windows operating system. Primary Causes of Error 0x54f
Ensure your Windows Sound settings and DAW project settings match this rate exactly. 4. Clean Driver Reinstallation cannot open focusrite usb asio error code 0x54f
Incomplete or failed updates can leave invalid entries in system registries. The error message typically occurs when a Digital
In the tab, uncheck "Allow applications to take exclusive control of this device". Repeat this for the Recording tab. 3. Match Sample Rates like Cubase or Ableton
If the error persists, a "clean" reinstall is often necessary to remove corrupt registry entries. Error Code 0x54f - Cubase - Steinberg Forums