Posted this in two other threads but I am posting this here in case anyone has this problem. I spent more than 6 hours troubleshooting this.
Two of my Antminer S2s had the same issue and I believe it's the SD card inside the Beagleboard that they're using which is a 4 gb Kingston (I'm not sure if it's genuine since their write rate is incredibly slow at 4 mB/sec).
SymptomsAntminer S2 will not retain settings, reset after reboot.
Or Antminer Blue screen when starting up.
Things Tried But Did not Work- Reseating all boards and checking cables
- Resetting to factory defaults
- Flashing a brand new image via the web gui
- Flashing the SD card with a brand new image via a disk imager
- Scandisk of the SD card (no errors reported)
SolutionI tried with a
new SD card 2 gb that I had lying about and flashed it with an image I found somewhere on the forum here (i can't remember where now but the guy had a lot |1|1|1| in his nick name
). Note this is not a normal flash via the GUI but it's a full sd card flash.
Step 1: Removing the beagle board and the SD card:Remove the control board (the one in the middle) and you should see a micro sd card slot. Press on it and it will pop up.
Step 2: Changing to a new SD cardDownload the official image they recommended for a 4 gb (link provided by BitMainTech) via a support e-mail
https://docs.google.com/file/d/0B9mK2-whJv8cU0Q5R1hIQTJnRVU/Put it into a sd card reader and use the below app to flash the img to the
NEW sd card (don't use the same one).
http://sourceforge.net/projects/win32diskimager/Replace it the sd card and remount it inside. Give it a go!
If this helped you!
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