Ugh, so I bought another A5 and it came without an SD card socket in the hole but at least the hash boards have the "catch fire" capacitor removed already (board revision is A5-33S-V3.0a).

I tried to update the firmware to the Feb 2018 via the web interface and it didn't complete and the fault light started flashing continuously. Left it for 30 mins - no change. Ctrl-F5 - no change.

Rebooted it and it now just flashes the fault red light and is not visible on the network on its configured IP address or the default 192.168.1.254

What are my options?

Try to fit an SD socket so I can flash from TF card?

All combinations of reset button, IP set,  and power-on have had no effect.

Anyone selling an A5 controller board? (e.g. you already fried your hash boards).

Cheers,

FB