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There is absolutely no correlation between serial number/16GB or 32GB/etc and the display used in the phone. Some phones have yellow screens, regardless of 16GB or 32GB storage, other's dont. There's nothing more to say.
 
The graph you put is of no help to me. The difference between color calibration on yellow screens is so small, yet so big when compared across various iphones. Just waiting for my new iphone. We'll see how it turns up. Hope they have not switched to different LCD manufacturer.
Take 10 different iPhones, you'll see 10 different screens. There is no "iPhone display".
 
I have the same 32 GB iPhone 4 I got on launch day and it has no yellow tint issue. Of course, after hearing of the problem from people who had theirs delivered the day before LD, I went over it with a fine-tooth comb at the Apple store before agreeing to keep it. :)
 
Take 10 different iPhones, you'll see 10 different screens. There is no "iPhone display".

Well I compared with 5 different friend's iphones and all were same bluish white and mine was yellow and dull. Hell I even compared mine to every single iphone in 3 different apple retail stores and did not find a single phone matching yellow color.
 
Well I compared with 5 different friend's iphones and all were same bluish white and mine was yellow and dull. Hell I even compared mine to every single iphone in 3 different apple retail stores and did not find a single phone matching yellow color.

I feel your pain, except my situation is worse...

I have always wanted the iPhone and my family was on Sprint and our pricing plan was just too good to pass up.
So I moved for school and sprint coverage sucked, So I got an iPhone off of craigslist, Jailbroke it and unlocked it. I used it on T-Mobile, and they sucked too, then moved to AT&T prepaid= perfect coverage where I am. However, I was at Best buy with my brother and saw they had an iPhone the screen's brightness was all the way up, and I picked it up and noticed it looked more crisper than mine.

So I took it out and sure enough, my screen had a more darker, yellowish look.
The one at the Best buy store looked more white and blue.

Now the screem issue is bothering the hell out of me, and I can't return my phone or send it to apple, because I Need an unlocked one.
 
you say that as if everyone agrees on what "white" is. To one person a color can be white, to another it would be yellow-tinted. To another person a color can be white and to another it would be blue-tinted.

Color%20Temp%20Chart.jpg
White is supposed to be neutral. The only neutral white listed in your image is Clear Metal Halide. I'm personally sick of the excuses, even from the manufacturers of fluorescent lights, LED lights and LED monitors who could not QA to a neutral white standard if their lives depended on it.
 
sanke1, I'm sorry to hear you are having the yellow tint issue.

I had this nightmare back in december. I already own an Iphone 4 32gb, so I bought the 16gb version for a member of my family. Unfortunately when we got it home, as I was showing them on mine how to use the phone, we realised theirs had the yellow tint you speak of. I went back to the shop and exchanged it with a different batch for a brand new one, but after getting it home realised it still had the same yellow tint. I then went back to a different store, exchanged it, and after taking it home, still the yellow tint existed. On all these occasions the store manager agreed that it was faulty and shouldn't look like that. In the end I gave in and got a refund.

Bear in mind that you had the yellow tint with the 32gb version, but I had the yellow tint with the 16gb version. I was unsure if it was just a bad month or that is how they are made now, but we couldn't keep it because everytime we looked at the screen, we just thought how yellow it was compared to mine. The whites are very yellowy, and the whole screen is a lot darker than mine. I posted about this subject on another forum and was told the yellow looked better, but I just don't agree - give me crisp bright white any day. I took a photo of the comparison, I'll post it below (both on full brightness, auto brightness turned off - my 32gb on the left, yellow tint 16gb on right):

IMG_0608.jpg
 
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This issue may likely be due to manufacturer. When the iPhone 4 originally came out, the screen was sourced by an LG factory. Recently, there was news that Toshiba had opened up a new plant to manufacture screens for mobile devices, implying they were also making screens for Apple devices.

Maybe the Toshiba screens are manufactured with warmer colors than the LG screens.
 
I'm currently in the middle of the same issue, as it were. Got my iPhone 4 32GB just before Christmas and made the 'mistake' of comparing the screen to my outgoing 3GS. Although the iPhone 4 had deeper blacks the yellow tint was rather annoying to me.

Went to my local Apple store in Kingston-Upon-Thames, London and compared with two display models, two personal geniuses iPhones and finally the managers, all were how I wanted mine, a cool white tone.

So after swapping twice and going through a handful of refurbished models I phoned the online store and detailed my problem and they are now sending me a brand new one, if this turns out to be yellow then I might just hold onto my trusty 3GS until iPhone 5 hits, with hopefully all the niggles sorted out.
 
My friend got a 32gb one today and its even yellower. This is ridiculous :D
 
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