Faulty Display. - Xiaomi Mi 9 Questions & Answers

Hi,
I got the blue mi 9, I noticed a horizontal line across the middle and top and bottom of the screen when the screen is at low brightness in a dark environment.
I tested it with oled test, but is it clearly visible on dark grey backgrounds.
I returned my phone and wonder if this is a common issue?
The line on the middle of the screen is the most visible on the photo.
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I have the same problem, 3 spots on different location

Gokh said:
I have the same problem, 3 spots on different location
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Do u have the same lines on the screen?

bassbounce said:
Do u have the same lines on the screen?
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Not at the same spot, but yes, i have similar spots under the screen visible on grey backgrounds

This is common. Dont worry. I have that too

huynhanhtri96 said:
This is common. Dont worry. I have that too
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When you pay 500€, you have the right to worry, it's should not have any defect like this.

Those lines are nothing to worry about like said earlier, it's inherent to how OLED panels are made for smartphones. Just a downside of the technology that OLED makers will not tell you about since that kind of situation is rare compared to most a phone usage

SurfaceCube said:
Those lines are nothing to worry about like said earlier, it's inherent to how OLED panels are made for smartphones. Just a downside of the technology that OLED makers will not tell you about since that kind of situation is rare compared to most a phone usage
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I have never seen those lines on Oled displays, and I had a lot of phones with a amoled or oled.

Search OLED Grey on Google image, you'll maybe understand. There's various degrees of the issue to the technology

SurfaceCube said:
Search OLED Grey on Google image, you'll maybe understand. There's various degrees of the issue to the technology
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People got too much hype on AMOLED and usually they don't talk much about its specific possible problem (LCD don't have).
The most prominent problem is due to the way AMOLED is powered which could lead to flashing screen, flickering screen .
Sent from my MI 9 using Tapatalk

Related

[Q] Build Quality

I just got my gear live and I was wondering if anyone else has a noticeable gap on either side of their gear live? Also, it seems that the heart rate sensor on mine looks crooked. Is this how it is supposed to be? The heart rate monitor seems to work fine. Although, I have not really tested it for accuracy. Please let me know if these build issues are normal.
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Bump.....anyone notice this?
Primenay said:
Bump.....anyone notice this?
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I have noticed a gap on the upper inside area where the plastic meets the bezel on the side opposite the charging port.
It does make me question it's IP 67 certification.
Landon4444 said:
I have noticed a gap on the upper inside area where the plastic meets the bezel on the side opposite the charging port.
It does make me question it's IP 67 certification.
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I have another question for anyone on here. Does your screen show a sort of pink line of pixels at the top when a white screen is shown? I think it may just be the way these displays are made but I wasn't sure.
Primenay said:
I have another question for anyone on here. Does your screen show a sort of pink line of pixels at the top when a white screen is shown? I think it may just be the way these displays are made but I wasn't sure.
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I see that as well. It is hard to describe but I do see a pinkish hue that lines the upper edge of the display which is most noticeable on a white background.
I just tried the pixels and its true but unnoticeable in normal use. As for the gap that's quite big compared to mine which I've had for months.
Mine looks the same and I have seen the gap on other watches. It varies. I have gotten it a little wet on the sides from washing my hands and so far no issues here. It should not affect the IP 67 certification. I wonder if the pink hue on white screens could be fixed with a software update?
Other issues I have noticed are my watch band creaks a little if I move it around and also my heart rate sensor looks crooked as you can see in my pictures. Other than these things, it is a great watch!

Oneplus 3t screen (Amoled) problem?

Hello there!
I would like to ask if there's something wrong with my amoled screen. I bought my Oneplus 3t 4 days ago. I would like to ask if its normal to have screen like that. So, half of my screen (down part) is quite red or pink and it feels like quite darker than the up side of the screen (if you're testing it on white or grey background). It's quite annoying when u are surfing net on chrome... I tested another amoled on My girlfriend's SGS6 edge and the screen is totally the same (there are NO any darker or pinker sides). Do you have anything like that? Or there is something wrong with my amoled? Would like to know your opinion. I would be appreciated if you could send some photos like i did so we can compare.
Thanks in advance!
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cant post links because im new......
(http//tinypic.com/view.php?pic=15ppkxu&s=9#.WNb9Dm81_cs
(http//tinypic.com/view.php?pic=bdjhnn&s=9#.WNb9SG81_cs
Sadly this is why i returned my op3 , These displays on the op3/t are terrible
But yeah a lot of op'3s have screen uniformity issues
Do you think i should return it aswell? Is someone else having same problem ?
My display does not have this issue.
EuEra said:
My display does not have this issue.
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Can you please show some screens like i did please ? Put your screen on whole grey background and something about 30% brightness. Would be really appreciated
White......
I tried the screen tester app and sure enough my screen is absolute perfection. All colors look absolutely great . Whites are uniformed white and also greys
Sent from my ONEPLUS A3000 using Tapatalk
nano303 said:
I tried the screen tester app and sure enough my screen is absolute perfection. All colors look absolutely great . Whites are uniformed white and also greys
Sent from my ONEPLUS A3000 using Tapatalk
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Same here every color, gray, and black perfect at every brightness.
Thank you guys for the responds. It was really important for me. Ill refund my oneplus 3t back to store. This is unacceptable for me to have screen like that.
cultofluna said:
White......
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actually that screenshot is useless. imaging using a torch to burn the screen and it turns yellowish or cracks. the screenshot will still be white.
Yah definitely don't see any problems with my display on 3T so good thing you returned.
themichael1 said:
Do you think i should return it aswell? Is someone else having same problem ?
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Yes definitely return it, You shouldn't have to deal with a bad display when you paid 439/479eur, ask for replacement or return it and buy again, problem is with all the returns / replacements you always have to wait weeks.
Guess its better to wait weeks than struggle all the time and be unhappy with the new device . Thanks to all one more time!
It's an AMOLED quality problem. It took me 3returns of my 6P until I got a screen that was uniform without green or pink tints. Luckily, my OP3T was uniform the first time.

dark shade of under fingerprint scanner is visible in direct sunlight on dynmic amole

Actually as i was browsing on my galaxy s10 i saw a dark outline of under display fingerprint scanner on the dynamic amoled, this issue is only visible on white background, this is of deep concern, did anyone notice this issue?
Hi. I cannot see anything there on the screen - not one bit, regardless which background it is.
Ktausif12 said:
Actually as i was browsing on my galaxy s10 i saw a dark outline of under display fingerprint scanner on the dynamic amoled, this issue is only visible on white background, this is of deep concern, did anyone notice this issue?
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I can see it too but only in bright sunlight shining strait at the screen with a white background. Even then it's hard to see. I tried it under a bright UV light and other very bright lights and do not see it otherwise. If you check this video out at 8:50 it should explain why. It's the reflection from the bright sunlight reflecting through and then back from the screen. I don't see it as a defect, it's just the design of the fingerprint reader. I wouldn't worry about it unless it becomes visible all the time.
But while i was using Chrome in direct sunlight the shadow stayed throughout and it was very irritating.
Do check in direct sunlight
rnrnrn said:
Hi. I cannot see anything there on the screen - not one bit, regardless which background it is.
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check in direct sunlight.
Let's stay on topic, guys and gals. No flaming.
Thanks!
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how do i upload image to this form
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Here's what mine looks like...
Not just from light at the back but direct sunlight, and on other colours than white.
Hello,
i have same problem... any solution?
Maybe stick some gaffer tape over it to hide it?
I can see mine aswell.
Sent from my SM-G975F using Tapatalk
Same here.
Bromage92 said:
Here's what mine looks like...
Not just from light at the back but direct sunlight, and on other colours than white.
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Not visible on mine

Pinkish tint when tilting the phone?

Hello! I have noticed that my device is changing color when tilting the phone in different angles. It gets a slight pinkish/reddish tint and I wonder if everyone has this or if my screen is bad and if I should get the phone replaced? I took a video of it but it doesn't really show as much in the video as it does IRL. It's much more noticeable IRL. I can't add the video here due to XDA rules.
So, is this normal or should I get it replaced?
My s10 plus doesnt do this hmmm, do you run it on wqhd? See if that makes a difference if not I reccomend taking it back
ednish said:
My s10 plus doesnt do this hmmm, do you run it on wqhd? See if that makes a difference if not I reccomend taking it back
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It happens no matter the settings I use. Tried vivid turned to cool, tried to turn down the red color etc etc. It's only noticeable on a white/grey background. Like in the Gmail. I guess I'll try to get it replaced.
Rndm Bstrd said:
Hello! I have noticed that my device is changing color when tilting the phone in different angles. It gets a slight pinkish/reddish tint and I wonder if everyone has this or if my screen is bad and if I should get the phone replaced? I took a video of it but it doesn't really show as much in the video as it does IRL. It's much more noticeable IRL. I can't add the video here due to XDA rules.
So, is this normal or should I get it replaced?
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Same here, look at this: https://forum.xda-developers.com/galaxy-s10/help/pink-hue-tilting-screen-t3909577
renton82 said:
Same here, look at this: https://forum.xda-developers.com/galaxy-s10/help/pink-hue-tilting-screen-t3909577
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Seems like it's a common issue. Not sure if it's actually normal tho? A friend of mine has almost none of this issue on his. I also took a picture of it showing quite a lot of the issue.
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Mine is much less pronounced and if i look the screen straight on is perfectly white
I can see green edges if I tilt the phone.

Rectangle on my screen after removing the screen protector?

Hello everyone! This morning, I removed the screen protector that came with my replacement display which I have been using for months now because it had too many scratches. After removing it, nothing was out of the blue until I noticed a large patch of uneven pixels in the shape of a rectangle. Can someone explain to me why this happens and the best way to solve it?
I've read some others had luck by just leaving it alone and letting it disappear on its own (usually within a week or so). My screen does not show any signs of screen burn-in and only shows image retention when watching 16:9 content for long periods of time (~usually 40 minutes at most)
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This is an image of my phone with the said rectangle.
App: OLED Tools
The rectangle is mostly noticeable when viewing dark images or gray backgrounds. It is also noticeable when looking at dark greens.
Mine did the same thing after removing my glass screen protector (Dome). Took a good 3 weeks to a month to fade enough that I can just ever ever so slightly notice it. I was really bummed out because the phone is flawless, and I wanted to change to a new protector.
But yeah, it faded away. I just looked again and I can't see it anymore.
I don't understand how the screen protector has anything to do with that or why it wasn't visible before. Disconcerting...
It's really very odd. First phone that has ever done something like that.
All I can say is always use OEM parts with these devices. That includes the adhesive strips.
I've repaired Canon pro cams before and having the exact parts makes the difference.
I hope it works out for you.
blackhawk said:
All I can say is always use OEM parts with these devices. That includes the adhesive strips.
I've repaired Canon pro cams before and having the exact parts makes the difference.
I hope it works out for you.
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It was replaced by an authorized Samsung Service Center I know the parts are legit.
It's been a few weeks now, and it's not as noticeable anymore!

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