Hi Marty,
Thanks for your input.
I am thinking this is more related to the USB chip as when cold, board / FPGA can’t be flashed and won’t return any command correctly.
I am willing to try the solutions you mentioned, but only as last resort if the guys from CrowdSupply/Lime can’t offer any solution to me.
The forum thread I have mentioned in my first post is that one: LimeSDR-USB gateware version is not recognizeable (temperature related)
Théo.