Just wanted to share that I was able to resurrect a dead A2 60MHs (4 mining boards) unit with this firmware.  The host died about 2 months ago and I'd basically written it off.  Pulled it apart yesterday, found that the SD card was dead.  I downloaded a couple of different images, the one referenced above, the one from zoomhash and the one from Emdje.

For no particular reason, I started with this one from MarkAz (quoted/referenced) and fired it up.  Connected to the webUI, modified the miner settings, and clicked start.  Boom, operational again.

Couple of questions/thoughts.  In the webUI, under device profile, there is a text field to input the number of boards (mine is 4), and a drop down for picking either the 88MH/s or 110MH/s models.  I don't know that it's relevant for anything other than the user interface, but if you were so inclined to update the image for the 2 and 4 board models, that wold be awesome.

At the top of the page, there appear to be a total of 8 graphs available.  The lower 4 are CPU Load, Temp, Gateway ping and Internet ping.  The top 4 are not rendering or are broken (no data?). scratch that - after about an hour, the top 4 graphs are showing now.

Anyway, I left the speed at the default of 1200Mhz, I see no reason to change it if it's working.  After about 30 minutes, the total board average is about 58MHs, which is a little slower than I remember (avg around 62).  I may grab try one of the other images and attempt a high clock speed, but I'll probably leave it alone for a bit and confirm what the pool side sees.

Feel free to ask any questions, I'm happy to share any details about the chassis or the setup.

Cheers,
baldpope