Originally Posted by pochi

"Friend experience"
If yes,
You may but it will be troublesome. It took around 4 hrs to do so, especially if you are on a short connecting time flight.
You must perform it at the HKG entry transfer desk.

If No,
sorry you have to fly, re-book or pay no-show fee and penalty (because you're eligible to your destination, not denied by the destination's border control.)
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Too Many HK Facebook KOLs promote skiplegging, so I guess it's way harder now.
(Too Many - This is a subjective term)