Whilst the upgrade to WM 6.0 gave quite a few advantages, there was a significant drawback. Wi Fi performance was non existent on anything other than an open network. As mine is not open then the potential of changing over to open was fairly minimal.
After some serious googling I cam across a ROM that provided the x50v with the right ROM and after about an hour of prating around and waiting the sign that I was waiting for. Connection to my network. happened and so i could reinstall all the software that was currently not doing very much on what was essentially a brick.
So if you fancied having a go at WM6.1 then start looking in the usual places (xda forums) and find a ROM that suits. As with previous posts I’m sure this is a grey area. But I’d happily pay for a copy if it were available through the OEM’s