This thread gave me an idea about the issue:
Hello all,
Today I ran LimeUtil --update my LimeSDR, which was working fine so far, And yes, once done, I experienced the “Gateware version 0, revision 0” bug (actually I experienced “Read(64 bytes) error” and some Write errors too), but then I did a LimeUtil --make and that’s when I saw the “version 0, revision 0” line) and searching the Web, I saw than I was not the only one. I knew I had not made a single HW modification, so the only cause could be software – the upgrade. So I thought maybe …
I just tried to warm up the FX3 chip by using a rework station, and the board starts to work! It fails again after cool down though, but now I can confirm the issue is temperature related.
@andrewback Might be a soldering quality issue?