Ye, I've tried both the ssh update and totally reformating and re-flashing the SD card with the beta, the current release, and my last know working version, .403. Funny, all these work fine with my 1.1 AHRS board, none work with either of the 2.0 boards I have.
If a bad batch of 2.0 boards was produced I suppose it likely that I have 2 of the same - I purchased this from CrewDog - when I discovered the problem with the AHRS he sent me a replacement board from his stock of parts.