I have a Antminer S2 from the second batch, it was all fine for a few day's after putting the blades back like most of you
Until today, i restarted the damn thing and now there is nothing but blue on the screen.
The original sd card seems to be fine, new msd card with a new image does not help.
I even tried with all the blades out, only one and half of them, still nothing

Do you guy's know what could be wrong?