Some recent iPhones have brief but intense highs right after unlocking, several users noted Reddit and at MacRumors. The screen looks washed out with an unappetizing greenish tint. It only takes a few seconds, then the smartphone returns to its usual colors.
The iPhones in question are those released last year (iPhone 11 and 11 Pro / 11 Pro Max), but there have also been cases with the iPhone X. No device equipped with an LCD screen is concerned, a priori. According to users, this fleeting tint appeared with iOS 13.4.1, so this could be a software problem.
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