I went through 5 iPhone 12 Pro Max models before I got one with the most even slight green tint when display is at minimum brightness. However this has the flickering issue that is noticeable on startup, and also a glow not displaying true blacks. I’ve never done these swaps with an Apple product before.
My sister’s normal iPhone 12 has no tint, no flickering, true blacks, and true greys. It is so obvious when put side by side. No swaps necessary, came like this first go.
There are defects out there that need a software fix. If they don’t fix by end of Dec, I will try one last swap because at Australian $2369 for a 512gb 12PM, it’s unacceptable.