1. Unit has some trouble connecting at first, but connects and hashes. No Xs.
2. THE BEEPER RINGS NON-STOP!! This is very loud and annoying.
3. The lights in the back blink red and green together, every few seconds.
Can anyone help. I would like to get this thing running safely again and I really don't want to set things on fire.
I had exactly the same problem, swapped all the components one by one with another S5, and it turned out to be the BB. I ordered another from Bitmain for around $50, and it's been working fine ever since... If you have another S5, definitely do the process of elimination and make sure it's the same for you, but if you look back in the forums I think you'll see me ask about exactly the same issue.