I hope someone can help
I have a Antminer S2, it has been running fine for the past 2 months, yesterday it just stopped hashing. I reseated all the boards and re loaded the firmware and reset but still nothing. It seems the main board might be faulty, when I start it up the red light and 4 green lights on the main board light up and flicker as it boots up the 4 greens lights go off and all the fans go off, on the display screen it has the IP address and 0GH/s and 0 degrees in the temp. I have emailed Bitmain a few times with photo's and a video of what is happening but haven't heard from them.