My X-Pro2 freezes, too, though I've decided to live with it because I can avoid the problem. So not as serious as that of zenmartini.
My story: I picked up an x-pro2 and three lenses (16, 18-55, 50-230) a few months back. A more pack-able travel alternative to a Nikon (currently a D800e).
Two weeks in I sent it to Fuji as the camera bricked on pc auto save. Not that I needed this function, never had it before (the more useful wifi-to-iphone function does work, curiously), but I figured this was the time to address the problem. Two thousand Canadian should get you something that works 100%, no? And a thought popped in, you're gonna travel with this camera, rely on it, maybe there is something else wrong with it.
Three weeks later it's back from Fuji service. They've done nothing, and they claim there is no problem.
Yes, I still have the problem.
I wrote Fuji. They replied, offered to ship it back and look at it again.
I decided to drop it. I'm bored with the whole thing, bored with Fuji service, bored with trying to decide whether to pursue it or not. Perhaps I should have returned it to the store at the first indication of a problem? As I said, the problem is not urgent. One upside: the desire to put more Fuji in my shopping cart is gone. Not sure if this is a permanent or temporary condition, though.
Funny thing, I joked to the Fuji tech that maybe the camera needs to travel to find wifi it likes. Lo and behold, upon returning from a short trip to the US I found the wifi sometimes gets one step further in the pc-auto-save process. It sees SSIDs! Sometimes. It still hangs, 100% of the time, but it has almost worked.
I'm heading to Europe shortly, perhaps that will fix it.
Lovely lenses, though.