Database Users

Strange pixel problem...

Hello all. I have a weird problem about some pixels on A501 screen: when the screen is on and the background is black, some of them will show "bright"... but not white, i'd say some sort of pale gold or very light brown, but again not white. With other backgrounds (red, blue, green, white) those pixels acts as normal, not being distinguishable from the others.
Is there something I could do? The issue is a lot more noticeable with 100% screen brightness.

Update: I sent the tab to service repair, and they sent me a new one. Guess what? Same problem again, right where it was on the old tablet!!
Definetely they are not stuck or dead pixel (I can say that because of the color of the pixel)
I was thinking, since I use a Tucano Youngster Case (http://www.tucano.com/shop/youngster-for-10-tablet-pc-1.html) which has a magnetic clip on the back, could this be the issue?? I'm going to try to take a photo at this pixel and attach it here.

cm0901 said:
Update: I sent the tab to service repair, and they sent me a new one. Guess what? Same problem again, right where it was on the old tablet!!
Definetely they are not stuck or dead pixel (I can say that because of the color of the pixel)
I was thinking, since I use a Tucano Youngster Case (http://www.tucano.com/shop/youngster-for-10-tablet-pc-1.html) which has a magnetic clip on the back, could this be the issue?? I'm going to try to take a photo at this pixel and attach it here.
Click to expand...
Click to collapse
that would be a better way to ask.. give picture so that we can see your problem..
hmm.. i would deny the fact that magnet will affect your screen.. thats why i hate those casing with magnetic clip on it.

sawamura said:
that would be a better way to ask.. give picture so that we can see your problem..
hmm.. i would deny the fact that magnet will affect your screen.. thats why i hate those casing with magnetic clip on it.
Click to expand...
Click to collapse
Unfortunately pics won't show my pixels, they're just too small. However I tried passing another magnet (more powerful than the one on the case) both on the screen, with a direct contact, and on the back, where the case's magnet is located, but no other pixels got damaged. So I don't think the magnet is responsible... Does the iPad folder case has a magnet in direct contact with the screen too? If that's the case I believe that magnets don't affect screens at all (imagine iPad's owners complaints?).
What do you think?
Inviato dal mio A501 usando Tapatalk

Well, when I set my background as black, on this one and two other Android tablet I had, it sometimes show a short brown/gold line on the top left of the screen. Most of the time its not there thoough. So it just seems to be a software thing. Although I do not have any problem where pixels appears randomly throughout.

eksasol said:
Well, when I set my background as black, on this one and two other Android tablet I had, it sometimes show a short brown/gold line on the top left of the screen. Most of the time its not there thoough. So it just seems to be a software thing. Although I do not have any problem where pixels appears randomly throughout.
Click to expand...
Click to collapse
Can you get a pic, so I can try to say if we're talking about the same issue? However, my pixels are always there, even in the "Acer" and "Android" boot screen... so I doubt it's a software issue.

Just a heads up... Yesterday I got my 3rd Iconia, and guess what, same problem again. I think I will just live with it... but I'm extremely annoyed.
Does anyone knows what kind of problem can this be, with gold-coloured pixel only with black background?

You should load up the Screen Test app that sets all pixels to red, blue, green, black, white, etc. in sequence as well as displaying several resolution and gradient screens and see how those pixels react.
I bought one A500 that had bad Wi-Fi but all pixels were perfect. Exchanged it last weekend for a second one with working Wi-Fi and all the pixels are also perfect. I don't see any gold pixels.
I'll disagree with your statement "Definetely they are not stuck" in your second post because if they are always gold in all screens they are indeed stuck. Not stuck on white or black but still stuck on that one color.
Does this happen on all home screens or just one? I hope you can post a picture of some sort because I don't know where to look to see if mine has the same issue but, running Screen Test, I don't see any incorrect pixels in Screen Test.

qhorque said:
You should load up the Screen Test app that sets all pixels to red, blue, green, black, white, etc. in sequence as well as displaying several resolution and gradient screens and see how those pixels react.
I bought one A500 that had bad Wi-Fi but all pixels were perfect. Exchanged it last weekend for a second one with working Wi-Fi and all the pixels are also perfect. I don't see any gold pixels.
I'll disagree with your statement "Definetely they are not stuck" in your second post because if they are always gold in all screens they are indeed stuck. Not stuck on white or black but still stuck on that one color.
Does this happen on all home screens or just one? I hope you can post a picture of some sort because I don't know where to look to see if mine has the same issue but, running Screen Test, I don't see any incorrect pixels in Screen Test.
Click to expand...
Click to collapse
I ran a pixel test app and with ree, green and blue pixels everything is perfectly fine. Only with black background I can see them. I tried to take photos but pixels are too small to be noticeable :-(
Inviato dal mio A501 usando Tapatalk

cm0901 said:
Only with black background I can see them. I tried to take photos but pixels are too small to be noticeable
Click to expand...
Click to collapse
Can you tell us exactly where to look? In Landscape mode, how far from the left/right top/bottom edges should I look and how many pixels am I looking for? How many should I see that are not completely black?

qhorque said:
Can you tell us exactly where to look? In Landscape mode, how far from the left/right top/bottom edges should I look and how many pixels am I looking for? How many should I see that are not completely black?
Click to expand...
Click to collapse
Among three tabs they were in different numbers and position... however they were between 3 and 6, and in the middle (vertically speaking); horizontally, instead, i found them twice on the right half on the screen (volume keys up) but this last iconia I have right now they are on the left. I also managed to get some photo, I'll post them later.
EDIT: Unfortunately I forgot my camera's MMC at home... will get back there in 10 hours and post the photos. However I ran Pixel Fixer during the night (an app which alternates red/blue/green/white screens very fast) but the pixels were still there this morning.
Inviato dal mio A501 usando Tapatalk

I ran through all the colors in Screen Test and found only ONE bad pixel across the entire screen and it's only when the pixel is supposed to be blue; it's black instead. That same pixel is correct on all the other colors though.
Otherwise, at full brightness and on any color, they are all on correctly and off when the screen is set to black. I don't see any other colors as you describe.
If your screen is doing something similar across three different tablets, maybe it's something you are doing but I'm not sure what it could be.

qhorque said:
I ran through all the colors in Screen Test and found only ONE bad pixel across the entire screen and it's only when the pixel is supposed to be blue; it's black instead. That same pixel is correct on all the other colors though.
Otherwise, at full brightness and on any color, they are all on correctly and off when the screen is set to black. I don't see any other colors as you describe.
If your screen is doing something similar across three different tablets, maybe it's something you are doing but I'm not sure what it could be.
Click to expand...
Click to collapse
Please note that this issue is present in the Acer and Android boot screen... what could I do wrong in that phase?

Ok, here's the photo. The three pixels are inside the white circle.

I just rebooted after setting display brightness to full and did not see what you see. I guess I'm no help. Sorry.

I do not believe a Note with a good screen exists

Please prove me wrong!
Anyone have any links to videos showing a Note rendering dark grays correctly?

watch the demovideo on your note.

The dozens of reviews which acknowledge how good the screen is proves you wrong.

Pfffff. Tests with Samsung handselected devices. Or do you think that Samsung will send defectiv devices to the testers?

The note I got from bell has no screen issues at all.
Sent from my SGH-I717M using xda premium

Sarius24 said:
The note I got from bell has no screen issues at all.
Sent from my SGH-I717M using xda premium
Click to expand...
Click to collapse
you can see down to one in gammatest??
no black clipping??
no banding??
and: no dark blotches on a complete black picture in a dark room? (you have to see whole screen lightly lit (amoled cant go completely black), and let your eyes accommodate to the darkness!

SGN sucks on screen quality, its own spen scratch the "good" screen... really disappointed.

TML1504 said:
you can see down to one in gammatest??
no black clipping??
no banding??
and: no dark blotches on a complete black picture in a dark room? (you have to see whole screen lightly lit (amoled cant go completely black), and let your eyes accommodate to the darkness!
Click to expand...
Click to collapse
I dunno looks find like all my other phones.
Sent from my SGH-I717M using xda premium

I honestly havent went out of my way to find any issues with the screen.
The videos I have watched all look awesome..I did notice on some dark images there was some banding or whatever its called but thats all I can tell..
I'm not that great with colors so I may not notice as much but it looks great to me so far.

TML1504 said:
you can see down to one in gammatest??
no black clipping??
no banding??
and: no dark blotches on a complete black picture in a dark room? (you have to see whole screen lightly lit (amoled cant go completely black), and let your eyes accommodate to the darkness!
Click to expand...
Click to collapse
Mine is fine with some tweaks. Primarily -40% contrast. I can see down to '2' on that test image. I also notice little or no blotchiness in dark videos any more, although I did before adjustment.
It's a software issue IMO.

Hirudin said:
Please prove me wrong!
Anyone have any links to videos showing a Note rendering dark grays correctly?
Click to expand...
Click to collapse
I share the same sentiment as no one with a 'perfect screen' has shared it. The best I've seen is one w/o any black clipping what so ever since his gamma test result is similar to a Galaxy S2 but I do see a few visible horizontal lines on a grey screen. Its not perfect but its with in specifications aside from the lines.
Alexanderbooth said:
Mod Edit: Quote removed.
Click to expand...
Click to collapse
To the unwise it may seem incorrect since they are only looking at the smaller picture and dont really have a clue on what this 'objective' test is for, let me give a real life example:
Using the Kindle application for reading ebooks gives you the option to use a black background now some screens have very visible blotches even if there is a text on the screen and they are become unoticeable when there is a text above them, this of course matters to someone who reads ebooks in their bedrooms w/o any external light source or to someone who watches movies like me. You see if we ask someone to open kindle and load up something and do this and do that, it makes the 'testing' more subjective rather than just test it in a pitch black room with a black image displayed.
These tests may sound silly to others but its the best way to get an objective result, remember people theres a difference between 'its not there' and 'i dont notice it with normal usage'.
here is an example that hopefully may enlighten you people with self proclaimed perfect screens so you may understand why its so difficult for others to accept such screen exists because with several replacements they havent seen one yet and people always claim that defects are the extreme minority, if its true then no one should need more than 2 replacements to get these perfect screens, correct?
It is also common for others to be dismissive of any screen related issues, you can be dismissive all you want provided you show an objective result. till then your screen is just as flawed as everyone else.

Mod Warning​
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I have cleaned the thread!​

EarlZ said:
here is an example that hopefully may enlighten you people with self proclaimed perfect screens
Click to expand...
Click to collapse
Are those dark rings one of the issues that everyone is complaining about? If so, I'll have to look at my unit, but I suppose I've just been extremely lucky. I have yet to notice any issues. That's not to say there aren't any issues with my device (possibly), if I look really hard, in very specific conditions

I do not have any black blotches or whatever.
One of the issue I have is the gray screen. It has somesort of texture on it but it's tolerable since it looks like a texturized wallpaper. No problems with playing videos at all, everything looks crisp and clear. So far I am enjoying it.
Also, another issue is the camera. When I am around those long florescent lights, there seems to be some wavy things on my screen. Even on video. I guess I got to avoid those lights in taking pictures. Haha.

Jade Eyed Wolf said:
Are those dark rings one of the issues that everyone is complaining about? If so, I'll have to look at my unit, but I suppose I've just been extremely lucky. I have yet to notice any issues. That's not to say there aren't any issues with my device (possibly), if I look really hard, in very specific conditions
Click to expand...
Click to collapse
That Image i used came from the Tab7.7 forums which shows the issue and practical scenario at the same time. Its an example of the darker blotches in blacks, not really the main issue on the Galaxy Note but one of the many possible yet rare issue.
On my end, my first screen had some blotches but they were not visible when I watch a movie or read an ebook from the kindle app, the 2nd screen I had did have a home button sized like blotch at the bottom which was visible when reading ebooks unless a text is close to it, in movies/shows it is only visible when the entire screen goes black.

EarlZ said:
...
Using the Kindle application for reading ebooks gives you the option to use a black background now some screens have very visible blotches even if there is a text on the screen and they are become unoticeable when there is a text above them, this of course matters to someone who reads ebooks in their bedrooms w/o any external light source or to someone who watches movies like me. You see if we ask someone to open kindle and load up something and do this and do that, it makes the 'testing' more subjective rather than just test it in a pitch black room with a black image displayed.
....
Click to expand...
Click to collapse
after seeing your picture, i want to test my note. i use a small chamber without a window and close the door, so its absolute dark in there. i take a picture from the screen of my note while using kindle with background set to black. i use my lumix dmc-fx01 digicam to take the picture. am i just lucky with the screen of my note, or did i something worng while testing?

EarlZ said:
That Image i used came from the Tab7.7 forums which shows the issue and practical scenario at the same time. Its an example of the darker blotches in blacks, not really the main issue on the Galaxy Note but one of the many possible yet rare issue.
On my end, my first screen had some blotches but they were not visible when I watch a movie or read an ebook from the kindle app, the 2nd screen I had did have a home button sized like blotch at the bottom which was visible when reading ebooks unless a text is close to it, in movies/shows it is only visible when the entire screen goes black.
Click to expand...
Click to collapse
Once again, I guess I have been extremely lucky with both my Note and my 7.7, because I have yet to notice any of these issues with either

Black clipping and banding = software. Therefore, irrelevant from a hardware perspective.
The splotches that you see in the most dark of conditions are the artifacts of the manufacturing process. Under normal 0% brightness (without using additional apps like screen adjuster) you will not be able to see these things assuming you've got a good screen.
The only things you need to look out for is color unevenness and brightness unevenness and in some cases, the manufacturing process is so prominent that it seeps into the normal brightness (0% and up range) and it is visible.
The fastest way to tell if there is something wrong is to turn off all auto-lcd power management, set the brightness to 0%, and to simply pull down the notification menu and view it in a dark place. That'll reveal most of the problems that you might find in a day to day situation. If you see nothing there and the screen looks crisp, don't bother looking for more. They will not appear in normal real-world situations.

No blotches on mine. Very happy with the quality. The color profile seems nicer than on my i9100. The only screen I had with noticeable blotches (only seen at full darkness) was on my T989.
So ya, very happy with my Note's screen. White International N7000

The witch hunt started with the original sgs and continues with the note.
Im on my second note plus a screen replacement and screens are flawless. Yes there is somme banding on all of amoled screens. Its partially software because running ics alpha build, most of the banding is gone.
Sent from my GT-N7000 using xda premium

Dead pixel?

I just got my warranty replacement yesterday. Noticed last night in a dark room that there is a small stuck blue pixel in the virtual soft button area, really an eye-sore. My first device had a hole in the backlight that looks like a big spec of dirt, so not as bad as that, but still irritating. I always seem to have the worst luck with ordering electronics (went through 5 sensations going around the warranty system )
Does anybody know of a way that it might be possible to fix this pixel? It's only visible when there is any blue or white on the screen above it. So if I download that pixel fix app and set the background color to blue, that stuck pixel screams, but if I set it to black or gray, it's not visible at all. It's only on if something above it is on. Almost like it's a short in the signal or something. Anybody know of a way to fix it? I've tried the pixel-fix it apps to no avail, albeit I haven't tried for more than 5 minutes.

Hi
MusicMan374 said:
I just got my warranty replacement yesterday. Noticed last night in a dark room that there is a small stuck blue pixel in the virtual soft button area, really an eye-sore. My first device had a hole in the backlight that looks like a big spec of dirt, so not as bad as that, but still irritating. I always seem to have the worst luck with ordering electronics (went through 5 sensations going around the warranty system )
Does anybody know of a way that it might be possible to fix this pixel? It's only visible when there is any blue or white on the screen above it. So if I download that pixel fix app and set the background color to blue, that stuck pixel screams, but if I set it to black or gray, it's not visible at all. It's only on if something above it is on. Almost like it's a short in the signal or something. Anybody know of a way to fix it? I've tried the pixel-fix it apps to no avail, albeit I haven't tried for more than 5 minutes.
Click to expand...
Click to collapse
Pixel fixer apps don't really work, some may report success only because it is an intermittent pixel fault that will just come back or would have fixed itself anyway. If it was as easy as flicking through a serious of colours the manufacturers of LCD panels would do this already as it costs them loads of money in throwing away panels with faulty pixels.
Some pixels will fix with gentle pressure, but often will just come back.
I'm sorry to say the only option is an exchange.
Regards
Phil

I'm getting a red pixel that shows up randomly. Either by the notification bar or navigation bar. It goes away if I touch the screen. Is this something that could get worse?

Hi
ceejay83 said:
I'm getting a red pixel that shows up randomly. Either by the notification bar or navigation bar. It goes away if I touch the screen. Is this something that could get worse?
Click to expand...
Click to collapse
You have a faulty pixel that corrects itself sometimes when given a little bit of flexing as would happen when you touch the screen. It is unlikely to spread to other pixels, but one day the pixel may become stuck red permanently or may just fix itself for good.
It isn't uncommon to have pixels like that, although with improvements in manufacturing it's getting rarer. If you think it will annoy you, you have little option but get it exchanged.
Regards
Phil

MusicMan374 said:
I just got my warranty replacement yesterday. Noticed last night in a dark room that there is a small stuck blue pixel in the virtual soft button area, really an eye-sore. My first device had a hole in the backlight that looks like a big spec of dirt, so not as bad as that, but still irritating. I always seem to have the worst luck with ordering electronics (went through 5 sensations going around the warranty system )
Does anybody know of a way that it might be possible to fix this pixel? It's only visible when there is any blue or white on the screen above it. So if I download that pixel fix app and set the background color to blue, that stuck pixel screams, but if I set it to black or gray, it's not visible at all. It's only on if something above it is on. Almost like it's a short in the signal or something. Anybody know of a way to fix it? I've tried the pixel-fix it apps to no avail, albeit I haven't tried for more than 5 minutes.
Click to expand...
Click to collapse
I would appreciate if this discussion continued on the general forum I made to discuss these issues...
Thanks
http://forum.xda-developers.com/showthread.php?t=2024710

Euler MD said:
I would appreciate if this discussion continued on the general forum I made to discuss these issues...
Thanks
http://forum.xda-developers.com/showthread.php?t=2024710
Click to expand...
Click to collapse
Didn't realise you were a mod

Its a strangely behaving pixel too. It only shows if there are a lot of blue sub pixels activated on the screen. Example, if the entire screen is blue, the stuck pixel will scream, but if its red, green, or black on then rest of the screen (dark video or picture or something) the pixel is black. Unlike any stuck pixel I've had before. Only stuck blue if the rest of the screen has blue... And if the pixel is supposed to be showing black. If it's showing white or gray, it'll function properly, but if it's supposed to be black, it'll be blue.
Sent from my Nexus 4 using xda app-developers app

[Poll] Dead/Stuck Pixel(s) on Your One?

First of all, I'm going to throw out a quick FYI fact: The One carries a 1080p display on a 4.7inch screen. The sheer resolution of the display increases the chances of getting a dead or stuck pixel. The ~469 PPI on the One also means it'll be slightly more difficult to spot these defected pixels.
Definition of dead vs stuck pixels:
Dead: These pixels are black and only visble on a bright background (preferably a white one). These pixels remain unlit (no green/red/blue pixel lights up)
Stuck: These pixels are essentially stuck on either red, green or blue colors and can be spotted on a background that is any color but of that the pixel is (if the pixel is green, you should be able to see it in a red, blue, white, or black background). These probably stand out best on a black background.
It's generally viewed that stuck pixels have a higher chance of repair-ability through flashing colors (white, black, red, green, blue) in succession on the display through an app.
I just want to know how much these defects affect HTC One devices as HTC has had some pretty bad issues with dead/stuck pixels in the past.
I, myself, have a dead pixel (unlit -- black) on the bottom of the display (barely above the "u" in Beats Audio when you boot up the device). It isn't bothering me too much, but I'm weary as to whether I should keep my unit as this may diminish future resale value..
Do you guys have a dead or stuck pixel on your unit?
p.s I'm not sure whether this should go under the "general" section or "Q/A", but I'm not looking for a specific troubleshooting Q. If it needs to be moved, please report the post (or move it if you're a mod).

I have a white pixel ，only can see it in black，but no in other pixel，what kind of this pixel
Sent from my HTC One using Tapatalk 2

dingnangen said:
I have a white pixel ，only can see it in black，but no in other pixel，what kind of this pixel
Sent from my HTC One using Tapatalk 2
Click to expand...
Click to collapse
Mine stuck pixel is white-ish yellowish colour and can only be seen on a black background with the brightness quite high.
When I first got the phone however I didn't have this problem, so its happened over time, I have since sold the phone so I can get a 64GB version

I though i had a stuck white pixel on the notification bar at the top of the screen, after a bit of investigation it appears the stuck/white pixel is actually a defect in the stock wallpapers
can anybody else confirm this???
it look like jpeg compression has removed the stuck/pixel though you can still see the location.
http://i42.photobucket.com/albums/e306/policeman999/Screenshot_2013-06-18-09-04-57_zps0430d36d.jpg
John.

I had one stuck (white) pixel but it disappeared after using a fixer a few times

the suspected white/stuck pixel still shows on the stock wallpaper, but as i said when i take a screen shot, it`s on the screen shot , so it`s a defect in the wallpaper.
John.

Tinderbox (UK) said:
the suspected white/stuck pixel still shows on the some stk wallpaper, but as i said when i take a screen shot, it`s on the screen shot , so it`s a defect in the wallpaper.
John.
Click to expand...
Click to collapse
You should use one of the dead/stuck pixel fix/detector apps from the play store, some free ones are good enough

I have used a dead fixel finder app, and no stuck/dead pixels show up on any color that i can see
It`s just strange the htc wallpaper has a defect that looks like a stuck white pixel.
thanks
John.
godutch said:
You should use one of the dead/stuck pixel fix/detector apps from the play store, some free ones are good enough
Click to expand...
Click to collapse

Tinderbox (UK) said:
I have used a dead fixel finder app, and no stuck/dead pixels show up on any color that i can see
It`s just strange the htc wallpaper has a defect that looks like a stuck white pixel.
thanks
John.
Click to expand...
Click to collapse
I think it's a bright star....but I see what you mean

It had me worried for a while :laugh:
I wonder where the stock wallpaper is stored, could i fix the image?
John.
godutch said:
I think it's a bright star....but I see what you mean
Click to expand...
Click to collapse

/system/customize/resource

Do you have to be rooted to see the system folder, as nothing is showing when i click on htc one\internal storage, no system folder is showing?
John.
godutch said:
/system/customize/resource
Click to expand...
Click to collapse

I happily don't have any on mine.

Do you think HTC would replace a unit based on dead pixels, and how many would be the threshold?
I have 1 dead pixel visible on white background, but each time i have to search for it couple of seconds even if i know the location, so it is not so bad...

If a WHITE pixel only shows up on a BLACK background, is that a stuck pixel or a dead pixel?

victorio404 said:
Do you think HTC would replace a unit based on dead pixels, and how many would be the threshold?
I have 1 dead pixel visible on white background, but each time i have to search for it couple of seconds even if i know the location, so it is not so bad...
Click to expand...
Click to collapse
I had a single dead pixel and T-Mobile replaced my device. Not sure about HTC's policy, but I'm sure it's similar.

sadly got some dead pixels, the shape of the outline of the moon, though only i notice it hehe, my brother wich is a freak in those things and he didnt notice

I plan to leave my bad pixel until just before the warranty is up then I'll get it replaced and sell a like new phone for the HTC Two lol

Thanks for the heads up about the "pixel fixer" apk. Looking at the images, my phone is defect free. Rock on!
Sent from my HTC One using Tapatalk 2

I have sent mine for a replacement today because of the dead pixel and a small darker spot on the display. HTC support said they are replacing defective units(dead pixels) 30 days after buying. Hope my operator will give me another one in the next few days.

burn in? what to do

Hi guys, I was using Google keep and the background in that app is gray. I can actually see the burn in typing this as well on the xda app as the color is similar. I have a picture taken with another device in low light. Zoom in a bit to see more clearly. It looks like an outline of a smartphone in navigation menu settings or something like that.
Is this burn in? What do I do?

Well if it is burn in then there's nothing at all you can do but a screen replacement, that's what happened to my last OnePlus 8 pro but I didn't bother to replace screen so then I got the oppo find X2 pro and i wouldn't think about going back to oneplus

When your phone is on are there any screens you can show which can show this?
Could try a screen test program to push colours to all pixels on the screen.
Or power it off for a day, see what it's like after that.
Definitely shouldn't be happening.
What did OnePlus say?