Dead pixel? - Nexus 4 Q&A, Help & Troubleshooting

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

Related

Week old nexus one, already dead pixels.

Well I received my nexus one about a week ago and I absolutely love everything about it...
Unfortunately I've just noticed two dead pixels on the screen. One top left and the other bottom right. Both about an inch in from the screens edge.
I've seen a lot of posts of people complaining about clicking edges and dust under their screens but I'm pretty sure this is not dust. The specks look identical to each other and are tiny in size. They are mainly visible on light/white backgrounds.
Unfortunately I live far away from any of the Google supported countries so doing any kind of exchange is going to be really difficult :-(
Anyone seen similar issues? Any suggestions?
There's a coupla apps on the market to check for dead pixels.
All they do is flash up white, black, red, green, blue so you can see what pixel is stuck. It might be worth trying one of those just to make sure they are actually dead pixels.
If they were working before, they might just be stuck pixels, and alot of toggling between colours may unstick them.
kam187 said:
There's a coupla apps on the market to check for dead pixels.
All they do is flash up white, black, red, green, blue so you can see what pixel is stuck. It might be worth trying one of those just to make sure they are actually dead pixels.
If they were working before, they might just be stuck pixels, and alot of toggling between colours may unstick them.
Click to expand...
Click to collapse
But if it was a stuck pixel then you would see it lighting up on dark backgrounds but these are only noticeable on white or bright backgrounds.
BTW I have already tried the market apparently and no joy.
Has no one else been noticing these?
I had one stuck pixel that appeared a couple days after i got my phone
but i fixed it and it came back like 5 times.
But knock on wood its been 4 weeks and it hasn't come back.
Mine was weird it would only show on the lock screen and it was very random but once i swiped to unlocked it went away so it wasn't that bad.
If i were you I would return it especially were its two pixels and software isnt fixing it.
demo23019 said:
I had one stuck pixel that appeared a couple days after i got my phone
but i fixed it and it came back like 5 times.
But knock on wood its been 4 weeks and it hasn't come back.
Mine was weird it would only show on the lock screen and it was very random but once i swiped to unlocked it went away so it wasn't that bad.
If i were you I would return it especially were its two pixels and software isnt fixing it.
Click to expand...
Click to collapse
When you say u fixed it what do you mean?
Just to clarify, the dots on my screen look dark like there's no light coming through them. That's dead not suck right?
:'-(
kostodo said:
When you say u fixed it what do you mean?
(
Click to expand...
Click to collapse
demo23019 said:
Mine was weird it would only show on the lock screen and it was very random but once i swiped to unlocked it went away so it wasn't that bad.
Click to expand...
Click to collapse
mine was stuck and it was red sorry forgot to mention that.
kostodo said:
Just to clarify, the dots on my screen look dark like there's no light coming through them. That's dead not suck right?
:'-(
Click to expand...
Click to collapse
OLED have very deep blacks so its hard to tell if its stuck on black or if it is dead
...anyhow if you cant fix it you should return it.
Man returning it is a such a mission as it was bought in Singapore and I'm not even there any more...
I suppose I could find a way to send it back there and then from there back to the US.... heh. The problem is that I only received the handset about a week ago so if these kinds of problems have been reported since the launch whaat says the replacement wont have the exact same issue? Which would then be a massive waste of time and money ;(
Thats the problem i even set up an RMA to return mine but had a gut feeling i would regret it. So i canceled my RMA and prayed the pixel would eventually not stick anymore.
I didn't want to take a chance of getting a referb phone with other issues.
I feel your pain EVERY device that I get now days that has a LCD screen ALWAYS has at least one dead pixel. But to my surprise my Nexus One is 100% fine .

Stuck Pixels

anyone else out there have stuck pixels on their device? i have a single pixel that likes to stick itself green from time to time. a minor annoyance.. but interesting nonetheless.
am i the only one?
There was a thread on here the other day with someone complaining about the same thing. I don't think it's a very common occurrence, though.
captain_awesome said:
anyone else out there have stuck pixels on their device? i have a single pixel that likes to stick itself green from time to time. a minor annoyance.. but interesting nonetheless.
am i the only one?
Click to expand...
Click to collapse
you are not alone...I have one stuck pixels as well. I am reluctant to exchange the phone because this is my 4th unit that finally works well. The first was laggy and kept rebooting, the second one had a faulty buzzing earpiece, the third had a home key that didnt work.
I love this phone and as a result have been willing to live with all the exchanges. I was finally given a unit without the prior 3 issues, but now am stuck with a unit with one tiny stuck pixel. I am willing to accept this minor annoyance because it is bairly noticeable and i am tired of reinstalling all my apps again.
mikea3000 said:
you are not alone...I have one stuck pixels as well. I am reluctant to exchange the phone because this is my 4th unit that finally works well. The first was laggy and kept rebooting, the second one had a faulty buzzing earpiece, the third had a home key that didnt work.
I love this phone and as a result have been willing to live with all the exchanges. I was finally given a unit without the prior 3 issues, but now am stuck with a unit with one tiny stuck pixel. I am willing to accept this minor annoyance because it is bairly noticeable and i am tired of reinstalling all my apps again.
Click to expand...
Click to collapse
agreed that its a minor annoyance. i chalk it up to the hiccups of relatively new technology. one pixel does not bother me. as long as it doesnt turn into a huge patch later.. haha
Try getting Color Flashlight from the market and run the pattern "Rainbow"
I'm not sure about SAMOLED, but flashing different colors has been known to unstick LCD pixels.
ah HA!! yes.. good idea.. i remember that from the LCD days way back when.
just an update here.. after flipping through the various colors available on color flashlight, my pixel remains stuck. it virtually disappears on the blue and green screens, barely visible on the amber screen but totally black on the red screen. the red part of the pixel must be dead. ahh well.
cest la vie.
Sent from my SGH-T959 using XDA App

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.

[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.

Anybody having/had this weird display issue?

Hey all,
Yesterday morning woke up to my MZF's screen being all weird. Anything dark looks fine, but the white levels are very subdued and even seem to have a slight reddish tinge. And there's also these two black dots that wont go anywhere. Seem larger than just a dead pixel. This has been going on for a full day now; every once in a while it seems that the colors go back to normal, but the problems seems to always return.
Photos below show my MZF (right) next to my buddy's MZF (left). Both displays are at full brightness. Didn't purchase protection through Best Buy or Verizon, so I'm likely gonna have to deal with Motorola Customer Service. Yay.
Any one else seen this? Any ideas?
Do a factory reset and see if it calibrates itself
Sent from my XT1650 using Tapatalk
Yeah, I did that right after posting. No luck. Thanks tho.
Try the hardware tests from device help?
LeeMullinsII said:
Try the hardware tests from device help?
Click to expand...
Click to collapse
Tried those too, no luck. Have a new MZF on its way from Motorola, warranty is covering it.
I JUST sent my Moto Z Force in for nearly this same issue. I was cleaning the screen off and I had a black dot pop up and after about 3 hours of it showing up I had a bright yellow line running from the dot to the top of the screen. Warranty is covering mine as well.
I had the same problem with the color/contrast on my Moto Z Force, but without any black dots. Mine had the same blue tint/haze to the display. I did a factory reset with no luck. I am getting a warranty replacement today, but this morning the problem disappeared (6 days after the problem started). I think I'm still going to take the replacement.
I have a little different issue. Screen has 4 rows of multi colored small lines. Unreadable, yet the touch and buttons are still functioning, any ideas?
blynkofaneye said:
Hey all,
Yesterday morning woke up to my MZF's screen being all weird. Anything dark looks fine, but the white levels are very subdued and even seem to have a slight reddish tinge. And there's also these two black dots that wont go anywhere. Seem larger than just a dead pixel. This has been going on for a full day now; every once in a while it seems that the colors go back to normal, but the problems seems to always return.
Photos below show my MZF (right) next to my buddy's MZF (left). Both displays are at full brightness. Didn't purchase protection through Best Buy or Verizon, so I'm likely gonna have to deal with Motorola Customer Service. Yay.
Any one else seen this? Any ideas?
Click to expand...
Click to collapse
pixel dead, the solution is to change the screen.

Categories

Resources