Fast Track Pro: no sound after last Garage Band Update

[cuentafalsa]

Hi, everyone.

So, I don't use Garage band, but I have it installed and last week I updated with others apps.

Since then my Fast Track Pro does not work anymore. The system recognizes the device but it serves no audio to it, the input does not work also.

A friend of mine has the same computer without this update and the device works perfectly.

I deleted com.apple.audio.DeviceSettings.plist and com.apple.audio.SystemSettings.plist

killed coreaudiod process.

Uninstall and reinstall last device driver.

System: OSX Yosemite 10.10.4 16g RAM 13"retina display early 2015.

I don't know what else to do.

Thank you in advance. :)

[cuentafalsa]

If someone arrives here from google I deinstalled Garage Band and the sound works again...