Had a similar problem,
Froze while loading 2 samples into the Project (drum hits, shakers, very light files).
Tried to turned it on, didnt turn on at all.
Tried again for more 2 times, no answer.
Waited 30 secs, did it again, turned it on froze on logo.
Took power supply off and left it resting for a minute,on the next attempt it worked, and loaded the Project i was working on a previous state (around 2 hours old Project - even though i had been constantly saving my Project evolution), than I reloaded the Project and it worked.
Sending a support ticket for this, catastrophe if this happens live... ;(