I had posted a few pages back that my brand new gold 12 Pro Max had a yellow tint that wouldn't go away by turning off Tru Tone. I had to make adjustments to the screen via Color Filters (under Settings > Accessibility), but it was making me very upset that such an expensive device needed any adjustments at all.
I'm here for an update: I went to a different Apple store earlier today (my local one closed suddenly due to someone getting COVID ☹️), and the Genius Bar guy suggested I try a brand new phone before giving up. He did see how dingy my screen was on the other phone and said it looks like I got a lemon.
I opted for a different color phone, too (white versus gold, the previous one). I did a complete return of the previous purchase, made a new purchase (to get a fresh 14-day return period) and I'm happy to report...the screen is no longer tinted yellow! 🤩
Very nice screen, very crisp. Everything the previous phone was not. Of course, I've yet to test this phone the next two weeks, but at least the screen issue is not there anymore.
I did run into a problem transferring data from my older iPhone (7 Plus) to this new phone. Apps just sat there and stuck on "waiting" or "loading". Didn't have this issue with the original (yellow tinted) iPhone I just returned. After a few times of turning the phone and Wi-Fi on/off, I decided to set the new iPhone back to factory settings and re-transfer data. (what a pain!)
That seemed to do the trick, and everything downloaded in under 20 minutes!
Don't give up on getting what you've paid for. Exchange the phone during the return period to get the phone and quality you want.
Hope others can get this issue solved, because it was a HUGE disappointment to come across such a quality control issue in a brand new phone!
I also prefer the white phone to the gold. Slate grey is also nice, but I'm trying to not always buy dark phones. Pacific Blue is cool, but I'd get tired of it quickly and have problems matching cases to it, so here's hoping the white phone is the right choice!
I must add that I think there must be an ambient light sensor on this model, because now that I'm sitting in a dark room, it is a bit off-white. But shine a bright light into the light sensor and the slight tint (the original phone was very yellow) seems to disappear.
Good luck, everyone!