i am trying to use the maschine mk3, and it does not seem to boot up with shift-channel, i just see the two screens dimly lit with the logo. i had previously had this device assigned to another account and PC which i no longer can access (hacked email), and i am not sure if this is a hardware or software problem. i try to enter the serial into native access and i get an error message. i am basically locked out of the device and i am not sure what to do at all.