did you ever get a reply or a working image for your usrp X310
I had no problem to get an USRP N200 working with SDR-Console, but my USRP x310 was never recognised in SDR console. Tried many images (XG, HG) including older versions but no success at all.
I flash via Windows command line, using the ETTUS commands. As I have no software skills I needed quite some time and tests to learn how to flash.