I contacted xfinity and Samsung last week. I asked if xfinity had any sort of internal ETA that they had and no one could confirm. One xfinity rep said he found a post online that indicated mid FEB, so who knows. My Samsung rep said they had sent out the finished pie update to xfinity the week before and to expect it by the end of February at the latest since they didn't know xfinity's internal testing.
A few other carriers just started pushing out the update for the note 9, I wouldn't be surprised if we saw it this week or next.
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