Originally Posted by
tentseller
IIRC S+V T1 airside was open quite early. I did not Mark down the time but my departure was around 8am.
The opening times for S&V are listed on the HKIA web site here. They even list phone numbers for each branch, so I guess you could call ahead of your arrival and check their stock.
Shopping, Dining & Entertainment - Shopping - All - Electronics & Telecom - Hong Kong International Airport