There’s no official word from Apple yet, but Apple support says iPhone 4 yellow tint problem is “residue from manufacturing”. An iPhone 4 owner Pat Cain reportedly called Apple and support told him that it was residue from the manufacturing process and that they rushed the shipments out to hit deadline. Apple support also states that it’s just because the residue is not dry and it should be clear up within a couple of days.

Other reports show contradicting solutions where Apple employees are saying to bring back the iPhone 4 to be swapped, adding that they have tons of replacement phones in-stock.