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In my case, Nikon DOES NOT have a fix for the asymmetrical focus issue. I sent my camera in 3 times and all 3 times came back with the same focus problem, if not worse.
Same here, though I only sent it in twice (once last year, and once last month). I also went to a store last week and tried out a new one to compare (serial 305..., while mine is 301...), and it still had the left focus issue, actually worse than my old D800.