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What do you guys think of this? Worth taking back? For reference, the 3GS is on the left and my launch 3G is on the right...

My 3GS looks just like yours, but unless it is sitting side by side by either a 2G or a blue/white 3G I don't really notice it.
Every thing else on my 3GS is excellent so for now I'm hangin' on it.
 
I'm starting to think this is all about viewing angles. Viewed straight on the bottom part of my screen is yellow. Tilt the top away a few degrees and the whole screen is uniform white. Tilt the top towards me a few degrees and the whole screen is uniform yellow.

I didn't (and probably never would) notice the yellow bottom until reading a thread in it, and my mates can't see it and think I'm crazy. I can see a similar effect on my MacBook if I look for it. I think I'm gonna try to get over it....

Interesting to read the post from the guy who couldn't see the gradient until he got the replacement home. Suggests it might be a fairly universal thing to me.

I think I agree with your theory. I can only really see the 'yellow' when I'm in a darker room or a certain angles. Straight-on it looks uniform and 'warmer' but I can accept it as the phone is otherwise great. I'm not a professional graphic designer but when I compare my photos on the iPhone with my iPod touch, my work PC and my MacBook, they look almost as good as on the MacBook to me. Colours look deep and vivid, albeit warmer (which perhaps could be fixed with a firmware update). Overall I'm happy with the screen.

I don't think we are looking at a mass defect on the phones - perhaps some of them, but not the widespread issue many might be thinking. I may be wrong. With all these iPhones going back for slight imperfections each time a new model comes out (not just the screens), it makes me wonder if that might explain why these devices are priced much higher than they probably should be. I guess they could always sell them as refurbs to less OCD customers or PC users who are used to substandard products :)
 
My new iPhone 3GS is really yellow on the bottom. It's pretty bad. When I'm looking at mail, the bottom blue bar is a nasty blue-green color. Also, the upper left corner of my screen has a red tint to it... so my top blue bar goes from purple to light blue. I think that warrants an exchange. I hate looking at my screen. If it were a consistent yellowish tint across the entire screen, that would be another story.
 
My new iPhone 3GS is really yellow on the bottom. It's pretty bad. When I'm looking at mail, the bottom blue bar is a nasty blue-green color. Also, the upper left corner of my screen has a red tint to it... so my top blue bar goes from purple to light blue. I think that warrants an exchange. I hate looking at my screen. If it were a consistent yellowish tint across the entire screen, that would be another story.

agreed. mine goes from cool/blue to warm/yellow. reading sites like cnn etc makes me sad.

yellow.jpg
 
black 32gb 3gs (yellow tint on bottom half)

It would be really great if this was a software related issue but in my opinion this is a clear hardware defect caused by a bad LCD manufacturer. The Apple product specialist I dealt with on the phone this morning was very nice about the whole thing and set up an exchange without any problem. I just really hope the new phone I'm getting isn't going to have the same exact issue.

The move to have "warmer" looking screens is so far an epic fail and it seems that the majority of people see this as a downgrade from the 3G screen. I preferred the whiter (crispier &bluer) whites then this washed out yellow tinted, auto-brightness out of whack iPhone I have now. Will post with an update as soon as I get my new phone.
 
It would be really great if this was a software related issue but in my opinion this is a clear hardware defect caused by a bad LCD manufacturer. The Apple product specialist I dealt with on the phone this morning was very nice about the whole thing and set up an exchange without any problem. I just really hope the new phone I'm getting isn't going to have the same exact issue.

The move to have "warmer" looking screens is so far an epic fail and it seems that the majority of people see this as a downgrade from the 3G screen. I preferred the whiter (crispier &bluer) whites then this washed out yellow tinted, auto-brightness out of whack iPhone I have now. Will post with an update as soon as I get my new phone.

Yeah, the other thing I noticed about my 3GS is that the colors don't seem to pop anymore. Everything seems a lot more dull. My Safari icon is a dull blue but on my 3G it's a nice bright blue that almost pops out of the screen. Also, this 3GS doesn't get very bright in the dark. I mean, it's almost like my original iPhone... it just doesn't get very bright. I have to turn it up full blast to get what my 3G gets at 75%.
 
Yeah, the other thing I noticed about my 3GS is that the colors don't seem to pop anymore. Everything seems a lot more dull. My Safari icon is a dull blue but on my 3G it's a nice bright blue that almost pops out of the screen. Also, this 3GS doesn't get very bright in the dark. I mean, it's almost like my original iPhone... it just doesn't get very bright. I have to turn it up full blast to get what my 3G gets at 75%.

Yeah, same here. My iPhone's yellow tinted screen doesn't get very bright at all in the dark, brightness needs to be up really high. Really stinks :/
 
Yeah it's annoying. I prefer the color calibration on the previous ones.

Why is the quality getting ********, eh Apple?

First we get to go back to plastic and now also need to accept a yellowish screen tint.
 
Couple more observations/data points...

After being annoyed that my new 3GS was so different than my wife's 3G, I went and compared my 3GS to about 18 display phones at the 14th street store in NYC last night. And it made me feel both better and worse about mine:

- Almost ALL of the 3GS's on display were clearly in the same basic range as mine. Some were VERY slightly bluer/whiter, but really, most were very similar, sort of a parchment/bone off-white.
- Only two were anything close to the blue-white of the 3G, and on one of those, the colors and type looked washed out compared to mine.
- There were two that were EXTREMELY yellow, shockingly yellow, way more than mine, and, interestingly, they were both week 20 builds, earlier than anything I've seen talked about here. I'm skeptical that the build week means anything, but still.

All of those things made me feel better. But:

- Only ONE had any sort of gradient at the bottom, which mine clearly has, and which annoys me. This made me feel worse.

After looking at all those 3GS's, I picked up a 3G without realizing it, and immediately noticed how profoundly different it looked than ALL the 3GS's I'd just looked at, without exception. So the difference is real (not that anyone is really debating that anymore) and probably intentional, to a degree. Better or worse? Subjective.

So now I'm just debating whether to exchange my otherwise perfect unit and risk dead pixels or some other crap. I've got the full length of the warranty to decide, correct?
 
Couple more observations/data points...

After being annoyed that my new 3GS was so different than my wife's 3G, I went and compared my 3GS to about 18 display phones at the 14th street store in NYC last night. And it made me feel both better and worse about mine:

- Almost ALL of the 3GS's on display were clearly in the same basic range as mine. Some were VERY slightly bluer/whiter, but really, most were very similar, sort of a parchment/bone off-white.
- Only two were anything close to the blue-white of the 3G, and on one of those, the colors and type looked washed out compared to mine.
- There were two that were EXTREMELY yellow, shockingly yellow, way more than mine, and, interestingly, they were both week 20 builds, earlier than anything I've seen talked about here. I'm skeptical that the build week means anything, but still.

All of those things made me feel better. But:

- Only ONE had any sort of gradient at the bottom, which mine clearly has, and which annoys me. This made me feel worse.

After looking at all those 3GS's, I picked up a 3G without realizing it, and immediately noticed how profoundly different it looked than ALL the 3GS's I'd just looked at, without exception. So the difference is real (not that anyone is really debating that anymore) and probably intentional, to a degree. Better or worse? Subjective.

So now I'm just debating whether to exchange my otherwise perfect unit and risk dead pixels or some other crap. I've got the full length of the warranty to decide, correct?


Yes you do.

I would swap it and at least get a phone that has a uniformly "warm" (code for yellow) screen.

From what I am gathering, any phone that has the issue where the bottom part of the screen is yellow, I believe that is a hardware issue that NEEDS to be replaced.

Anyone that has a "warm" (code for yellow) screen, I believe that can be resolved via a software/firmware update to increase the color temperature to better match what the 3G's looked like.

I may be way off, but my 15+ years in the IT field has me feeling that is probably right.

Many have said Apple can prevent a lot of this by giving the user the option to MANUALLY set the color temperature they want.
 
Wasn't there a way to check which specific screen you had on the original iPhone and maybe on the 3G by typing in a certain code on the numeric keypad? I thought I remembered people doing this on the original iPhone when it first came out and finding that one screen manufacturer code was warm and the other was cool.

Perhaps this would be a better way of comparing screens rather than using the build week numbers (which don't seem to have much correlation). Anyone know what I'm talking about?
 
I've been watching a bunch of 3G vs. 3GS speed tests by various users on youtube and have pretty much confirmed everything that has been said here.

In EVERY video I have seen, the 3GS is significantly dimmer/dingier (yellowish) compared to peoples old 3G phones.

Seeing this, I wouldnt bother trying to exchange, as it appears this is a consistent issue across the globe. I'd wait for Apple to say something or just return it and rebuy in a month or so.

Here is an example:
http://www.youtube.com/watch?v=HMH0W1_Wm2c&feature=related
 
Wasn't there a way to check which specific screen you had on the original iPhone and maybe on the 3G by typing in a certain code on the numeric keypad? I thought I remembered people doing this on the original iPhone when it first came out and finding that one screen manufacturer code was warm and the other was cool.

Perhaps this would be a better way of comparing screens rather than using the build week numbers (which don't seem to have much correlation). Anyone know what I'm talking about?

I thought that was a part of the field test screen. But I am unable to find it now.
 
Anyone else think that this 'yellow tint' issue may be related to the lcd screen somehow reacting with the oleo-phobic coated glass, giving off the warmer color?
 
Anyone else think that this 'yellow tint' issue may be related to the lcd screen somehow reacting with the oleo-phobic coated glass, giving off the warmer color?

No. There are 3GS screens that look virtually identical to a 3G placed next to it, and then there are 3GS screens that look like a small rodent peed inside them during shipping.

If there was a glass tinting effect, all units with oleophobic coating should look similarly yellow. The fact that many do not suggests otherwise.
 
Had the first chance to compare mine to others in an apple store today, and they were GLEAMING white by comparison. The o2 store I bought it from say they will exchange when they have stock. Good!
 
I wouldn't mind if my screen had a slight yellow tint across the entire screen. Mine is just yellow on the bottom which makes the blue bars at the top and bottom of mail look like completely different colors.
 
I did some side by side shots of my 3G vs. 3GS and uploaded to flickr. What do you guys make of this?

http://www.flickr.com/photos/40001952@N04/sets/72157620866872136/

The 3G is on the left and the 3GS is on the right. Overall, the 3G may actually be a bit "warmer"but i think the 3GS just lacks contrast so it makes it look like that.

I feel the 3G has better colors, a better viewing angle (note the low-angle pic and the strange glow) and is much brighter overall. It's interesting to note the complete differences in color on the lock screen (blacks) and dialer....

I don't know which one is correct :confused:
 
And if you swapped them with each other then did the test again - You'll get a different result.
 
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