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Old October 12th, 2011, 02:37 PM   #1 (permalink)
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Default All Galaxy S2 screens are flawed?

Try this: Fill up the screen with solid black. You can use the screen test menu (*#0*#) if you can't be bothered to find a totally black image. Make sure the whole screen is black, with not even the notification bar showing.

Then go into a totally pitch dark room. Look at the screen for about 30 seconds, to give your eyes time to adjust. If your phone is anything like the 3 models I looked at today, the screen won't be totally black, but will have patches, blotches and lines of darker black areas.

My friend noticed this and when I first checked my phone I didn't see anything as the room was not dark enough and I didn't give my eyes time to adjust. However, at work we went into a dark room (eyebrows in the office did raise) and he showed me the "problem". My other workmate who also has a Galaxy S2 looked at his handset with us under the same conditions and, you guessed it, same black blotches - albeit not in exactly the same places.

It doesn't affect me and I would never have noticed unless my friend had pointed it out, but it is quite amazing that this slipped through R&D. I would imagine that if I watched a dark film in a dark room, I might notice.

SO that is three Galaxy S2 phones, all bought weeks / months apart from different retailers and, in my case, in another part of the country. But yet all have the same flaw. I know one other person that has this phone and I am going to try and check theres, but I think this effects all Galaxy S2 phones.

Like I said, you will only see this in a totally dark room, so don't simply glance at your screen and claim it is fine. Find a pitch dark room, totally black screen and look for at least 30 seconds with the brightness on medium to high.

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Old October 12th, 2011, 02:43 PM   #2 (permalink)
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Why would I get a black screen up, go into the dark and wait 30 seconds for my eyes to adjust?
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Old October 12th, 2011, 02:46 PM   #3 (permalink)
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You wouldn't. But if I was watching a dark film like in bed in a dark room I might. I'm not saying we should run back to the shops... but this whole phone is marketed on its amazing screen. I just found it surprising.
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Old October 12th, 2011, 02:53 PM   #4 (permalink)
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Quote:
Originally Posted by TheTrueSpin View Post
You wouldn't. But if I was watching a dark film like in bed in a dark room I might. I'm not saying we should run back to the shops... but this whole phone is marketed on its amazing screen. I just found it surprising.
This is just a case of if you look for problems, your gonna find them. 90% of users won't notice this, so I don't really see the problem. Im not gonna check my phone to see if its having the same problems as you and your friend are having, but I will say that its the best screen iv used on a phone, and iv used alot, including the Iphone 4.
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Old October 12th, 2011, 03:09 PM   #5 (permalink)
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FINALLY a good reason for running around in a pitch dark room..
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Old October 12th, 2011, 03:19 PM   #6 (permalink)
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Its hardly surprising. Perfect blacks are the holy grail for all visual devices.
You can pay many thousands of pounds for a plasma/led screen and still not get perfect blacks.

Most TVs these days have a piano black gloss border. compare this to the "black" displayed on the screen and you will realise how grey the TV's "blacks" really are.

The GS2 is one of the top (if not the top) handset you can buy at the moment, so just enjoy it.
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Old October 12th, 2011, 03:21 PM   #7 (permalink)
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Quote:
Originally Posted by shenfrey View Post
This is just a case of if you look for problems, your gonna find them. 90% of users won't notice this, so I don't really see the problem. Im not gonna check my phone to see if its having the same problems as you and your friend are having, but I will say that its the best screen iv used on a phone, and iv used alot, including the Iphone 4.
Have to say I agree. If you have to run through such a particular, peculiar set of steps in order to find the problem then it's not really going to affect anyone.

----

In any event I tried it and it seems to be perfectly black to me.
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Old October 12th, 2011, 04:00 PM   #8 (permalink)
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Not saying you didint see what you saw, but I dont understand how this is possible, because with OLED technology, blacks turn the pixel completely off.
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Old October 12th, 2011, 04:02 PM   #9 (permalink)
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Maybe he didnt go black enough!
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Old October 12th, 2011, 04:11 PM   #10 (permalink)
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Not saying you didint see what you saw, but I dont understand how this is possible, because with OLED technology, blacks turn the pixel completely off.
Could be an image burned into the screen?
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Old October 13th, 2011, 12:00 PM   #11 (permalink)
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I did exactly as you said. Got nothing. My screen is totally fine.
Three out of three ? Coincidence maybe ?
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Old October 13th, 2011, 01:39 PM   #12 (permalink)
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Samsung are taking this problem seriously it would seem, and have issued the following advice to all Samsung Galaxy SII owners who are also Chilean miners.

This advises them that the following films may not be suitable for viewing if trapped underground...

Pitch Black

The Black Hole

Men in Black

Bad Day at Black Rock

Black Narcissus

Meet Joe Black

Black Hawk Down

Black Rain

Black Knight

Black Beauty


this list is not full and final.

Other bulletins in this series include...

All Galaxy S2 speakers are flawed... when used at the bottom of swimming pools.

and

All Galaxy S2 antennas are flawed... when used in submerged submarines beneath Antarctica.

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Old October 13th, 2011, 02:01 PM   #13 (permalink)
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This seems to be a very common problem:

Dark Screen blotches!

Do you notice any lines or spots burnt into your screen?

SGSII AMOLED screen - Page 2 - xda-developers
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Old October 13th, 2011, 02:04 PM   #14 (permalink)
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"problem" is subjective
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Old October 13th, 2011, 02:05 PM   #15 (permalink)
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That's it. I've had enough of this piece of tat. I'm sending mine back to orange tomorrow for a blackberry torch.
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Old October 13th, 2011, 03:16 PM   #16 (permalink)
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Hahaha!!!!

Jokes aside though....

To be honest i've noticed it too but I put it down to the way the difference layers of the screen are 'sandwiched' together. A bit like if you pressed two glass plates together.... not all areas would make contact and the slightly lifted areas would look different compared to the compressed areas.

Also it's clear that the screen is emitting a very small amount of light on an all black screen. Turn the phone off and you wont see a thing.

But, meh, it doesn't bother me.
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Old October 13th, 2011, 03:47 PM   #17 (permalink)
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I haven't tried hiding in a cave with my sunglasses on etc etc and I don't intend to.

All I care about is that my SGS2 has the best screen of any phone I have ever used and it has no obvious flaws (eg dead or stuck pixels). That's definitely good enough for me.
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Old October 14th, 2011, 07:02 AM   #18 (permalink)
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I'm getting my refund for the S2, I've had nothing but issues with its screen. I'll wait for the Nexus Prime or S3.
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Old October 14th, 2011, 07:15 AM   #19 (permalink)
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I'm getting my refund for the S2, I've had nothing but issues with its screen. I'll wait for the Nexus Prime or S3.
What issues do you have with the screen??
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Old October 14th, 2011, 07:29 AM   #20 (permalink)
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Got 3 Galaxy S2 in hands.

First : red bright stuck pixel on the screen
Second : black particle/dead pixel in the screen
Third : two dead pixels and 1 green stuck pixel (plus this one was very yellow on the left)

I never saw anything like some of you tho, my screens were pitch black in the dark.

But I had enought, refund.

I can wait for a better phone, with a better screen !
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Old October 14th, 2011, 07:32 AM   #21 (permalink)
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Sorry to hear people have screen problems, you must be getting dealt phones that were returned by other people.
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Old October 14th, 2011, 07:35 AM   #22 (permalink)
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Sorry to hear people have screen problems, you must be getting dealt phones that were returned by other people.

Not at all, they were all brand new, sealed box and everything.
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Old October 14th, 2011, 11:07 AM   #23 (permalink)
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Quote:
Originally Posted by Okks View Post
Got 3 Galaxy S2 in hands.

First : red bright stuck pixel on the screen
Second : black particle/dead pixel in the screen
Third : two dead pixels and 1 green stuck pixel (plus this one was very yellow on the left)

I never saw anything like some of you tho, my screens were pitch black in the dark.

But I had enought, refund.

I can wait for a better phone, with a better screen !
To be honest, you have to look REALLY hard to find the black marks I am talking about. I missed it the first times I looked. To be honest, despite being the OP in this thread, the SGS2 screen is fantastic and the issues I have raised would never be seen during normal operation (for me at least, although some people that watch movies in the pitch dark might have issues if there is a very very dark scene).

But yeah, I hate dead pixels. Sadly, almost every device I have ever owned have had at least one. My first SGS2 had a dead pixel and my current one doesn't...
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Old October 14th, 2011, 11:34 AM   #24 (permalink)
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I to have noticed this problem, but only after reading this post otherwise id of been unaware of any screen issues, although i did find 1 stuck pixel which to be honest isnt the end of the world which some people claim, my desire had loads.
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Old October 14th, 2011, 01:26 PM   #25 (permalink)
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I to have noticed this problem, but only after reading this post otherwise id of been unaware of any screen issues, although i did find 1 stuck pixel which to be honest isnt the end of the world which some people claim, my desire had loads.
My Desire had no dead or stuck pixels... but it did have dust under the screen that annoyed me no end.
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Old October 14th, 2011, 01:57 PM   #26 (permalink)
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Quote:
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My Desire had no dead or stuck pixels... but it did have dust under the screen that annoyed me no end.
Haha yeah my first desire also had that, i can handle a few dead pixels but dust drives my crazy, thats also the reason why i didnt get the sensation coz ive heard they also suffer from the same problem.
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Old October 14th, 2011, 02:08 PM   #27 (permalink)
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I won't buy apple products anymore due to issues I had with ipod touch's, samsung is on my black list now (but I'll try the S3 or Nexus Prime), and looks like HTC can't make phone without dust inside.

What should I do now, make my own phone ?
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Old October 15th, 2011, 06:05 AM   #28 (permalink)
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Default Screen not truly black?

Tried putting on a black screen in a dark room. The screen is black with a tinge of red. Reminds me of a saying that "Black is a colour"

Actually I don't see it as a problem. Even the best TV shows black as a colour. Won't even have noticed if didn't read this thread and tried it out. And it certainly hasn't affected my use so still happy with SGS2.

Although I did notice that the tinge was quite constant throughout. I don't know if the screen is a problem if you get patchy blotches of tinged black colour.

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Old October 15th, 2011, 06:14 AM   #29 (permalink)
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The blotches and lines that many people can see in a dark room are thought to be where the backing of the screen is not quite perfectly applied. Like when you put on a screen protector and you get little pockets of air. 99% of users will of course never notice... but it is a little annoying that Samsung have let quality control slip a bit, no doubt to meet production targets.
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Old October 15th, 2011, 07:28 AM   #30 (permalink)
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Default Blotches and Lines

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Originally Posted by TheTrueSpin View Post
The blotches and lines that many people can see in a dark room are thought to be where the backing of the screen is not quite perfectly applied. Like when you put on a screen protector and you get little pockets of air. 99% of users will of course never notice... but it is a little annoying that Samsung have let quality control slip a bit, no doubt to meet production targets.
Your explanation makes more sense if the blotches are random. It doesn't if everything is totally even. My opinion is that when you use a dark / black wallpaper, the screen isn't off at the area where it is black. There is still currents passing through it. In other words, the black is a colour, not an off screen. There is still light, just extremely dark light.

Of course if you got blotches, then it probably means there is a problem.

Anyway, does an AMOLED screen means that where it is black (rather subjective when trying to determine how black), the screen / pixel at that point is truly off? (Particularly when you have colours at other area of the screen?)

Anybody know if the problem occurs on other phones?

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Old October 15th, 2011, 09:45 AM   #31 (permalink)
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It's totally unacceptable.

Why can't they get a perfect result on such a small screen ? Samsung really suc*s on this.

My HP laptop has a PERFECT LED screen, perfect dark, no dead pixels, no stuck pixels, great contrast and colors.

Samsung just can't make screens...
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Old October 15th, 2011, 09:52 AM   #32 (permalink)
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But despite what I see under very unusual test conditions, in pitch black no light conditions, I don't think my screen is flawed.

I put it down to the way the screen is made and designed to work.

Dead pixels is another issue all together...
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Old October 15th, 2011, 09:55 AM   #33 (permalink)
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Quote:
Originally Posted by Okks View Post
It's totally unacceptable.

Why can't they get a perfect result on such a small screen ? Samsung really suc*s on this.

My HP laptop has a PERFECT LED screen, perfect dark, no dead pixels, no stuck pixels, great contrast and colors.

Samsung just can't make screens...
If i were you mate id just totally give up on all technology coz your never gonna get perfect.
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Old October 15th, 2011, 11:12 AM   #34 (permalink)
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My right as the final user is to get what I paid for.

One dead or stuck pixel, is not what the product has been advertised.

Samsung should mention this on their ads : "May contain flaws, dead and stuck pixels" I'm not sure many people would still buy their products.
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Old October 15th, 2011, 11:48 AM   #35 (permalink)
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Default LED Screen

Quote:
Originally Posted by Okks View Post
It's totally unacceptable.

Why can't they get a perfect result on such a small screen ? Samsung really suc*s on this.

My HP laptop has a PERFECT LED screen, perfect dark, no dead pixels, no stuck pixels, great contrast and colors.

Samsung just can't make screens...

I don't use LED screens or TV so I don't know how black it does get. I mean when the screen is off, its totally black. When its on, even if showing black background, there should still be currents passing through the screen and maybe that's why there is a sort of black glow.

I would agree that if the glow was in patches, it would be lousy, but because it isn't (at least it isn't on mine), I am thinking maybe that's the way its suppose to work.

Anyway, if you don't want your SGS2, maybe you can sell it to someone

Regards


PS - As for dead pixels. You could always trying getting a replacement phone. That can be considered defective I think. But I think the pixels are so small on the screen that most people won't notice it if it is black in colour.
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Old October 15th, 2011, 12:37 PM   #36 (permalink)
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Quote:
Originally Posted by Okks View Post
It's totally unacceptable.

Why can't they get a perfect result on such a small screen ? Samsung really suc*s on this.

My HP laptop has a PERFECT LED screen, perfect dark, no dead pixels, no stuck pixels, great contrast and colors.

Samsung just can't make screens...

your laptop screen is probably made by samsung.
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Old October 15th, 2011, 12:55 PM   #37 (permalink)
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Quote:
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your laptop screen is probably made by samsung.
True, and they make great screens....
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Old October 16th, 2011, 12:04 AM   #38 (permalink)
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Remember, your S2 screen isn't just a screen... it's an interface.


Quote:
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True, and they make great screens....
True, the Koreans are right up there when it comes to screen technology, my LG LED TV has amazing contrast and resolution... the blacks are perfect!
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Old October 21st, 2011, 06:52 AM   #39 (permalink)
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I've just received a replacement SGS2 after losing my last one on a drunken weekend...

Anyway, I use night clock (from the market) and this issue is very noticable on my new handset. It's not acceptable to me as my previous S2 had a perfectly black 'Black' at night, no blotches at all. I will be returning the phone for a replacement, but by the looks of it, i'll probably get one that is just as bad, if i do, i guess i'll just live with it. My previous S2 was one of the first ones after it was released. I'm not sure if that has anything to do with it, maybe they are using cheaper screens now?
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Old October 21st, 2011, 08:45 AM   #40 (permalink)
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Ok i've come up with the conclusion that this 'effect'(?) may be related to temperature and humidity...

The last time I checked this it was warmish and humid and I found that my SGS2 had some blotches here and there. But again this was under non-typical conditions, and I put it down to the different layers and generally the way the screen is made. Either very, very slight areas of condensation is forming or parts of the layers compress together, to give that 'black effect'.

Did the same test a few minutes ago. Today it's very cold and dry...

And the screen is blotch free.

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Old October 21st, 2011, 10:56 AM   #41 (permalink)
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Originally Posted by spen2 View Post
I've just received a replacement SGS2 after losing my last one on a drunken weekend...

Anyway, I use night clock (from the market) and this issue is very noticable on my new handset. It's not acceptable to me as my previous S2 had a perfectly black 'Black' at night, no blotches at all. I will be returning the phone for a replacement, but by the looks of it, i'll probably get one that is just as bad, if i do, i guess i'll just live with it. My previous S2 was one of the first ones after it was released. I'm not sure if that has anything to do with it, maybe they are using cheaper screens now?
Do let us know if the new one has it.

I have seen 5 GS2 phones now, and all had this. Some were slightly worse than the others, but none avoided it. I think Samsung have changed something, because all the screens seem to be "flawed".
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Old October 21st, 2011, 11:00 AM   #42 (permalink)
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Ok i've come up with the conclusion that this 'effect'(?) may be related to temperature and humidity...

The last time I checked this it was warmish and humid and I found that my SGS2 had some blotches here and there. But again this was under non-typical conditions, and I put it down to the different layers and generally the way the screen is made. Either very, very slight areas of condensation is forming or parts of the layers compress together, to give that 'black effect'.

Did the same test a few minutes ago. Today it's very cold and dry...

And the screen is blotch free.

Maybe it is something that reduces over time? Like the iPhone 4 yellow spots?

I dunno. I'm not taking mine back as, of the 5 I have seen, mine is the least affected and I can't see it unless I go looking for it. If it gets better... great. If it doesn't... oh well.
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Old November 30th, 2012, 08:01 AM   #43 (permalink)
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No update in awhile but my S2 has been deemed 'not covered' despite 2 year warranty by Swisscom due to what they assess is damage due to humidity to the screen

I got the dreaded lines a couple of months ago and it simply progressed in terms of how bothersome it appeared along with buggy operation...I did a reset on more than one occasion but nothing worked...It's never been subject to water exposure so unless the ambient Swiss humidity levels are prohibitive for phones in general, I feel justifiably hosed

They're giving me a 30% discount on a new phone but I can't honestly decide what to do at this point...I was quite happy with my S2 and no ambition for the S3 but if this screen issue happens again in just over a year, I'd definitely refuse Samsung phones again

As it is, not sure what I will do
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