i thought gateway was part of batch 1 sierra's?
Good point.
No batch 2 sierras in the wild as of now; amusing.
Posted from Bitcointa.lk - #sXNJS7xfWYHgVw1mwinit is a batch 2 sierra customer, order 2211.
he posted on the sierra owners thread saying he's having problems with some of his units.
Finally updated the firmware on all machines, looking a tiny bit more powerful than before.
The unit which wouldn't power is now fine.
The unit with the LIBUSB error is still the same after firmware upgrade so looks like that machine isnt going to play ball at all.
I took the lid off and see that the board revision is 1.0 where as the other machine is 1.2.
I've no idea what to unplug / leave plugged to test each board individually.