Stuck-Dead Pixels - Xperia Z Q&A, Help & Troubleshooting

This is an open poll for everyone, share your experience with those nasty pixels, you got one? Two? More? None? :fingers-crossed:

No dead pixels here. But with such high PPI, i think it might be hard to notice a single bad pixel.

None that I can see.

None for me also very happy.

I got one and it's going back as soon as they have more in stock..

paulrgod said:
I got one and it's going back as soon as they have more in stock..
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Click to collapse
Unfortunately they say that up to two dead pixels is normal so they will not replace it

my z is in purple color,
no dead pixels here

No dead pixels here as well.
Sent from my C6603 using xda app-developers app

I got two bright pixel on ma z
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Two bright pixels
One dead pixel..
İ'll send it back as soon as possible.

Mine's fine, checked it using pixel fixer.
Sent from my C6603 using xda app-developers app

Another quick way to ensure that your screen is ok is the service menu,
directly from the dialer press:
*#*#7378423#*#*
then under the "service tests" choose "display" and tap on the screen,
the stuck pixels can be found easily on black and white screen tests.

"Does Your Z Transform Into A Microwave Oven?"
The Z; the phone that keeps on giving Next poll:
- YES! : ██████████ 70%
- Not Yet! : █████ 20%
- No : ██ 10% ​

2 Z's both with dead pixels. The guy in the store was really patronising earlier. Will visit him again tomorrow!
Sent from my C6603 using xda app-developers app

Very important ! --> Check it on FULL brightness , a pixel mistake shows then only .....
Use Dead Pixel Test (UJACHA) app from Plays Store.

I test 2 xperia z with 2 bright pixel on each phone until the third one with none.
The best way to test it is by looking at the start up screen when it was black and bright. You may have to restart the phone many times to make sure.
Sony screen looks very nice but always have the bright pixel problem. I encountered the same thing when I purchased the first Sony Xperia S. Always got these with Japanese phone.
Sent from my Calculator

Well, I thought that my XZ had one dead pixel, but after closer examination, I'm sure it's a screen protector manufacturing flaw. When you look at it straight farward it looks like a black pixel, but when you look at an angle, that the light reflects from the surface this dot starts to shine. It' s like a piece of glitter embeded in screen protector :/
Sent from my C6603 using xda app-developers

reptile64 said:
Unfortunately they say that up to two dead pixels is normal so they will not replace it
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Click to collapse
"Normal"
are you kidding me?
wtf is with the tech world now...

Just took my Z back to cpw. New one will be delivered on Tuesday. Fingers crossed for no dead pixels! !
What I did notice though is that my first 3 Z's had no seals on the boxes. Yesterday cpw had some more that were factory sealed. Must be a different batch. The Z is sellung like hotcakes as they were out of stock today.
Dead pixels is a trivial matter and most people wouldnt even notice. But they stand out like a saw thumb to me and irritate the hell out of me.
To check... use dull brightess, turn off adaptive lighting and useba black image
Sent from my GT-I9300 using xda app-developers app

Bump
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Related

broken camera and 2 dead pixels out of the box

I received my shipment today.
The very first thing I did after signing in was update the system to 4.1.1.
After playing for a few minutes I noticed a dead or stuck pixel on the right side of the screen. I ran the display test app and found another dead pixel in the middle of the screen.
I tried the camera with Google hangouts and Skype and all I get is garbled green signal. Using the nexus 7 camera launched yielded the same result.
Doing a full factory reset did not fix the problems.
Needless to say this going back. I'm disappointed that this excellent device is having these quality issues.
I have a single dead pixel on the very edge. It's only visible on a completely black screen so I'm gonna live with it.
Good luck with your return.
Sent from my Nexus 7 using xda app-developers app
redmonke255 said:
I have a single dead pixel on the very edge. It's only visible on a completely black screen so I'm gonna live with it.
Good luck with your return.
Sent from my Nexus 7 using xda app-developers app
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I would recommend you get it exchanged. At the end of the day its still a defect. Maybe wait a little while so they have more stock to ship another one.
dublued said:
I would recommend you get it exchanged. At the end of the day its still a defect. Maybe wait a little while so they have more stock to ship another one.
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I got mine from staples so I'll have to deal with them. I'll wait until they have stock.
Sent from my Nexus 7 using xda app-developers app
They have a little thing in the booklet. I think its referring to dead pixels. It was kind of confusing tho
Sent from my Nexus 7 using Tapatalk 2
Shano56 said:
They have a little thing in the booklet. I think its referring to dead pixels. It was kind of confusing tho
Sent from my Nexus 7 using Tapatalk 2
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Do you know what page its on? I didn't see any mention of it
Edit: never mind, I see it in the warranty booklet under the LCD defect policy

small blue dot only on camera

hello everyone. had the one for 3 weeks now. I just noticed a very small blue dot almost at the center of my screen when taking pics or recording videos. I could only see it on camera mode though. on home screen it does not appear. ran dead pixel test and did not find anything. I been searching forums and found nothing similiar . I'm debating on returning it or is there a fix for this. I'm completely stock, unrooted for now.
Is it in your photos?
Yes. I just tried it.
Sent from my HTCONE using xda app-developers app
Sent from my HTCONE using xda app-developers app
If u look at the same spot where the dot is and compare it to the app drawer, u can't see it.
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Just curious here but does it show on both front and back camera's or just one?
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Just on the rear facing one. I hope it's a software issue, not hardware . I don't want a refurbished one.
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eldominicat43 said:
Just on the rear facing one. I hope it's a software issue, not hardware . I don't want a refurbished one.
Sent from my HTCONE using xda app-developers app
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Click to collapse
At this stage, you likely won't get a refurb.
That said, it looks like your camera actually has a dead sensor. Not sure what, if anything, you can do to try to clear it up short of taking in the phone.
It obviously isn't the screen.
Ya, I am no genius on this subject by no means but that pixel would be considered stuck instead of a dead pixel. If it is on the software end of things then going through the various colorize settings in that particular camera mode and taking snapshots may release it. Maybe even a factory reset may release it back to normal.
Then again it may be a warning sign that that pixel is about to go dead too I guess. I really hope you get this cleared up for sure and I for one would be very curious as to just what is going on here. Thanks.
Edit: referring to the camera may have a dead sensor as said above, I would have thought that it would have shown that way with recording too. Maybe not though...
Thanks guys I'll try to take it back as soon as I can
Sent from my HTCONE using xda app-developers app
My HTC One has the exact same issue but it's on the very edge of the screen so much less offensive then where yours is.
It's a hot pixel on the camera sensor that only shows up when the ISO is cranked up. For DSLR's, software (at the factory or even on camera) is used to "map out" these hot pixels. Perhaps we have something similar on our phones that can be accessed.. have you tried a hard reset?
Blue dot
Yeah I recently purchased mine but unlocked and I have the same problem, seems to happen when it is on high ISO. I was reading into the hot pixel thing which happens in other cameras, but they say they go away but can persist. I am debating to wait or exchange it, but these phones are back-ordered :/
Considering that your hot pixel is near the center of the screen, I would consider exchanging it (if possible). While it's true that they can sometimes go away on their own, my experience (with DSLR's at least) has led me to not rely on this happening (I have a few hot pixels on my DSLR that have appeared and NOT gone away in the last few years).
I have a similar problem I have a little green dot on the corner of my screen
Sent from my HTCONE using xda premium

Screen color looks dirty

Hi, I have two notes, I Just sold one a litlle time ago, and I have noticed that the Screen looks dirty in some parts of the Screen, like sand color and is more look in White colors like Facebook app, in one of my Galaxy this covered only half Screen and I could See like a smiley in a corner, in the other this color cover almost 90% of the Screen, something know about this? I have to say that mi phones have been of second hand.
Sent from my GT-N7000 using xda app-developers app
Eduardo9309 said:
Hi, I have two notes, I Just sold one a litlle time ago, and I have noticed that the Screen looks dirty in some parts of the Screen, like sand color and is more look in White colors like Facebook app, in one of my Galaxy this covered only half Screen and I could See like a smiley in a corner, in the other this color cover almost 90% of the Screen, something know about this? I have to say that mi phones have been of second hand.
Sent from my GT-N7000 using xda app-developers app
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Look up the "burn in" / screen burn in thread. I believe this is your issue. If that is your problem, it is not fixable. All the knowledge you desire is in that thread. Read the first few pages and then skip to the last few pages.
Sent from my GT-N7000 using Tapatalk 2
Thanks men, that is my problem, I thought that I only was a problem of plasma Screen. I wont buy amoled again. Thanks for the help.
Sent from my GT-N7000 using xda app-developers app

Dead pixels

Just found about 8 dead pixels when testing with a black background. Now that I found them you know they will bother me lol. You guys may want to check for them. You can use dead pixel checker from the play store and set it to black. Look closely, the more noticeable ones are when multiple dead pixels are grouped together.
Sent from my SAMSUNG-SGH-I537 using Tapatalk 4
joshuadjohnson22 said:
Just found about 8 dead pixels when testing with a black background. Now that I found them you know they will bother me lol. You guys may want to check for them. You can use dead pixel checker from the play store and set it to black. Look closely, the more noticeable ones are when multiple dead pixels are grouped together.
Sent from my SAMSUNG-SGH-I537 using Tapatalk 4
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I seem to remember some Windows software for LCD screens that would "coax" dead pixels back to life by rapidly cycling the colors sent to them or something like that... Might want to see if such software exists for Android...
joshuadjohnson22 said:
Just found about 8 dead pixels when testing with a black background. Now that I found them you know they will bother me lol. You guys may want to check for them. You can use dead pixel checker from the play store and set it to black. Look closely, the more noticeable ones are when multiple dead pixels are grouped together.
Sent from my SAMSUNG-SGH-I537 using Tapatalk 4
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I'm not trying it out. If I was to find one I would be calling att with a warranty claim first thing in the morning.
Sent from my SAMSUNG-SGH-I537 using XDA Premium 4 mobile app
IMissPalmOS said:
I seem to remember some Windows software for LCD screens that would "coax" dead pixels back to life by rapidly cycling the colors sent to them or something like that... Might want to see if such software exists for Android...
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tmease1 said:
I'm not trying it out. If I was to find one I would be calling att with a warranty claim first thing in the morning.
Sent from my SAMSUNG-SGH-I537 using XDA Premium 4 mobile app
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I agree, I wish I didn't know lol. I am running the "fix" let's see how it goes. I finally stopped getting the "return your defective phone" alerts from AT&T... I really don't want to go through that again...
EDIT: dead/stuck pixel test didn't work, I ran it for 30 minutes
joshuadjohnson22 said:
I agree, I wish I didn't know lol. I am running the "fix" let's see how it goes. I finally stopped getting the "return your defective phone" alerts from AT&T... I really don't want to go through that again...
EDIT: dead/stuck pixel test didn't work, I ran it for 30 minutes
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Click to collapse
That sucks. Do a claim and get a replacement. If I was in your shoes I would do it.
Sent from my SAMSUNG-SGH-I537 using XDA Premium 4 mobile app
tmease1 said:
That sucks. Do a claim and get a replacement. If I was in your shoes I would do it.
Sent from my SAMSUNG-SGH-I537 using XDA Premium 4 mobile app
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Click to collapse
For now I will hold off, I do not feel like setting everything up again... I just went through the process of replacing it a few months ago and it was so annoying, they messed up 2 times and it took 3 times to get me the right device and ship it to the right house... I will give it a few weeks and call and see if I can just go to a repair place and have them toss a new screen in it or replace it on the spot. I would like to know if anyone else is having this issue so I can know if it is even wroth fixing... if more people have this issue the chances are the replacement screen will too.
joshuadjohnson22 said:
Just found about 8 dead pixels when testing with a black background. Now that I found them you know they will bother me lol. You guys may want to check for them. You can use dead pixel checker from the play store and set it to black. Look closely, the more noticeable ones are when multiple dead pixels are grouped together.
Sent from my SAMSUNG-SGH-I537 using Tapatalk 4
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Click to collapse
I have droidwall installed, and I installed dead pixel checker. First of all, I'm curious as to why the app needs full network access if all it's doing is displaying full color screens one after another. Droidwall did catch it trying to send off 4 packets to some ip address.
No dead pixels that I could detect while using the app, there were some narrow vertical lines that looked a bit off but I think that's because I have a Ghost Armor screen protector on, and those are from the 'glue' or whatever keeps the screen protector adhered to the Gorilla Glass.
I have one dead pixel right,top corrner
I finally broke down and downloaded one of the pixel check apps off of the play store. I can't remember the name of it because once I was done I uninstalled it. Anyway, I'm good. Seeing this thread tempted me to damn much not to try it out.
Sent from my LG-E970 using XDA Premium 4 mobile app
joshuadjohnson22 said:
Just found about 8 dead pixels when testing with a black background. Now that I found them you know they will bother me lol. You guys may want to check for them. You can use dead pixel checker from the play store and set it to black. Look closely, the more noticeable ones are when multiple dead pixels are grouped together.
Sent from my SAMSUNG-SGH-I537 using Tapatalk 4
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Click to collapse
There is a few software and physical ways of sorting these but it’s not guaranteed plus it should be covered under your warranty.
My first device had > 14 damaged pixels, 4 of them would show even on lower brightness levels. My new device has a few too - but I can't see them under normal conditions. Found them via magnifying glass (black screen, max brightness)... Don't do that - you will probably find some

Has anyine noticed dead pixel.

I have got my phone for a few days and just realise today that there are a couple of dead pixel.
They are very difficult to spot but at first I noticed one bright pixel, so I downloaded an app to check. At the end I found two in total, one dead ine bright.
A bit annoying to know they are there but its not too bad...
Hmm
Just want to know any if you guys got the same problem?
Sent from my C5503 using xda app-developers app
I had a dead pixel on my screen. Sony replaced my phone with a new one. Go claim your Sony warranty.
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