Have one as well -- got it last night. Hashed for 15 minutes then died.  Tried every trick in the book to bring it back up but nothing.

I ended up reimaging the USB with the updated software -- brought it back to life.  Got rid of the flashing red light on the front of the unit -- guess the operating system (firmware) was corrupted. 

Reduced the starting frequency to 800 mhs -- helped with stability.

Also, oddity I found was all three local miner destinations needed to be loaded otherwise unit would not boot. 

I still get a "may not boot" message when rebooting and boot process takes a good 10 minutes before it starts hashing. 

Hashing on blockmaster Lyra2rev2 pool at averaging at around 5.6 to 6.3 at the pool.