Dead Pixel(s)? - HTC One X

I have what seems to be a dead pixel that constantly seems to change color (when displaying darker colors it becomes visible) on the middle left side of the screen. I also seem to have one that flashes bright only once on top of the screen (not always, just when screen refreshes seem to occur).
Anyone else there having such problems with their X One? Sounds to be like a hardware problem..

BLAST3RR said:
I have what seems to be a dead pixel that constantly seems to change color (when displaying darker colors it becomes visible) on the middle left side of the screen. I also seem to have one that flashes bright only once on top of the screen (not always, just when screen refreshes seem to occur).
Anyone else there having such problems with their X One? Sounds to be like a hardware problem..
Click to expand...
Click to collapse
a lot are experiencing the same mate, we don't know if its hardware or software no words from HTC so far
awaiting updates

Just found another (dead?) pixel. This one sits on the left side of the screen, and is only visible on grey or lighter backgrounds (not on black backgrounds). It is lighter than the rest when displaying a bight color, and sometimes flickery turns blue when swiping over colors on-screen.
Not all that disturbing, but I certainly don't like the idea of having a brand new phone with one (and potentially) two dead pixels on arrival.

BLAST3RR said:
Just found another (dead?) pixel. This one sits on the left side of the screen, and is only visible on grey or lighter backgrounds (not on black backgrounds). It is lighter than the rest when displaying a bight color, and sometimes flickery turns blue when swiping over colors on-screen.
Not all that disturbing, but I certainly don't like the idea of having a brand new phone with one (and potentially) two dead pixels on arrival.
Click to expand...
Click to collapse
Mine had 3 before I sent it back. Mine were dead, so stuck black.

Mine had a sticky pixel (the ones that can be seen over black background). It was visible only on very dark light conditions and over black background.
I wanted to go to the shop for replacement, but on that morning the pixel reactivated alone.
There are some apps on the play store that try to reactivate sticky pixel by changing the color of the screen very fast.
I doubt their effectivness, but they are worth a try.

I want to check One X for dead pixels in stock before I buy it.
How can I do LCD test at One X?
I try *#*#4636#*#* but I cant find LCD test here, so which code works for LCD test?

smoke2 said:
I want to check One X for dead pixels in stock before I buy it.
How can I do LCD test at One X?
I try *#*#4636#*#* but I cant find LCD test here, so which code works for LCD test?
Click to expand...
Click to collapse
It is normally at the code you said, but seems to be missing on this handset. Use an Android app...there are quite a few.

But in stock Im unable to install any .app on it.
Any solutions how to check the display in stock?

smoke2 said:
But in stock Im unable to install any .app on it.
Any solutions how to check the display in stock?
Click to expand...
Click to collapse
Unless you have a very sensitive eye, I don't think you would be able to see a single dead pixel at the shop. The pixel density is so high that a single pixel is very very small. You need to watch very carefully to spot them.
Anyway, the best way to spot my sticky pixel was to take a picture covering the lens. You get a totally black picture, which you can view full screen and hunt for white/yellow/green/red pixels.
If the seller is veeeery patient you might be able to do that at the shop.
Maybe the same works for dead pixels, by taking a picture at a white wall.
What do the LCD experts think of this?
Anyway, all the apps on the play store for detecting dead/sticky pixel present the 3dots menu button. So they fail in detecting dead/sticky pixel in the bottom part of the screen.

Mine had a dead pixel along the top just right of the middle, I could only see it on dark colours. Took it back to o2 got a replacement there and then.
Sent from my HTC One X using xda premium

Attached a pic of the pixels I'm referring to. They are indeed 'stuck' pixels, not dead pixels. The one in the top only shows periodically. The other two are there constantly.
Also noticed the screen flickers on some apps. Now that I do find very annoying.
Requested a DOA return.
Mine was made in Taiwan.

i've been using the phone for a 3 days now, and i still have problem wit few pixels with exactly problem that is described in the first post. ota 1.28. did not help. did the pixel fix apps help, and if it did, how long have was the app active until the problem was resolved?

Scoo88 said:
i've been using the phone for a 3 days now, and i still have problem wit few pixels with exactly problem that is described in the first post. ota 1.28. did not help. did the pixel fix apps help, and if it did, how long have was the app active until the problem was resolved?
Click to expand...
Click to collapse
I am skeptical that running those apps will actually fix things. That was also why I returned that phone to be replaced. Got my new one today, and it has no dead pixels. It does however have a very vague yellow bar on the top of the screen. Almost not to be seen, only when the screen displays only white.
If it really is a problem, I'd contact my retailer and get it replaced.

Related

What kind of dead (or stuck) subpixel is this?

I have an odd pixel right in the middle of the screen. When I run Dead Pixel Detect (which you can find in the Market), it is lit in the following ways:
- on a white screen, it seems red;
- on black, it seems black;
- on blue, it seems blue;
- on red, it seems red;
- on green, it seems black;
- on yellow, it seems red;
- on cyan, it seems black;
- on magenta, it seems magenta.
Does anyone know what kind of faulty subpixel(s) this is about? Is it a dead green subpixel?
I think it's just a stuck pixel because if it was black all the time, then it would be a dead pixel. Try JScreenFix from the Marketplace and pray that fixes it:
try http://www.appbrain.com/app/com.jscreenfix.android
Well, I'm sure that it isn't a dead pixel indeed but it seems to be a dead subpixel. :-( I already tried that JScreenFix app but it hasn't made any difference so far.
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franklinvv said:
Well, I'm sure that it isn't a dead pixel indeed but it seems to be a dead subpixel. :-( I already tried that JScreenFix app but it hasn't made any difference so far.
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Sent via the XDA Tapatalk App
Click to expand...
Click to collapse
Technically, I think it may not possible for an AMOLED to get a "stuck pixel" like you would get on a normal LCD screen. The fact that you are getting a red pixel on a white screen, most likely means that the G & B (as in R,G,B) are dead.
Traditional LCD screens produce different colours by passing a charge through a kind of lens that twists producing different colours as the light passes through it. A stuck pixel happens when one of these lenes gets jammed and stops twisting, which is why you can sometimes fix them by flashing loads of colours on the screen rapidly, it sort of rattles the pixel loose.
If you've got a pixel that's displaying the wrong colour then it's broken rather than stuck.
I am not sure what else you could try to fix this... is it still under warranty? Realistically, I think having it replaced is your only option.
I have exactly the same problem a 'pink' pixel on the screen which is mostly visible on light backgrounds. Did anyone try to exchange it for this reason? I bought it from t-mobile UK.
I know that in the past they would need a certain number of pixels to be faulty before they would change anything (tv-s, monitors, etc.) Is this true for this phone?
If they dont then just say it has a different problem, most operators send out the replacement and pick up the 'faulty' one at the same time.
Mastoid said:
Technically, I think it may not possible for an AMOLED to get a "stuck pixel" like you would get on a normal LCD screen. The fact that you are getting a red pixel on a white screen, most likely means that the G & B (as in R,G,B) are dead.
Traditional LCD screens produce different colours by passing a charge through a kind of lens that twists producing different colours as the light passes through it. A stuck pixel happens when one of these lenes gets jammed and stops twisting, which is why you can sometimes fix them by flashing loads of colours on the screen rapidly, it sort of rattles the pixel loose.
If you've got a pixel that's displaying the wrong colour then it's broken rather than stuck.
I am not sure what else you could try to fix this... is it still under warranty? Realistically, I think having it replaced is your only option.
Click to expand...
Click to collapse
Thanks for the explanation!
Well, I bought it 5 weeks ago so it should be under warranty although it is rooted. I can hardly see the dead subpixel (even though it is in the middle) so I'm not really concerned but I might consider contacting HTC customer service anyway.
franklinvv said:
Thanks for the explanation!
Well, I bought it 5 weeks ago so it should be under warranty although it is rooted. I can hardly see the dead subpixel (even though it is in the middle) so I'm not really concerned but I might consider contacting HTC customer service anyway.
Click to expand...
Click to collapse
No problem bud, although, if i were in your shoes, then i would unroot it and send it back for replacemet while still under warranty. Afterall, you paid for a product that should not have any defects, and something like a dead pixel to the screen would annoy the hell out of me
MasDroid said:
No problem bud, although, if i were in your shoes, then i would unroot it and send it back for replacemet while still under warranty. Afterall, you paid for a product that should not have any defects, and something like a dead pixel to the screen would annoy the hell out of me
Click to expand...
Click to collapse
Yep, I'll probably do so. The only thing is ... my Desire was Vodafone UK branded, and I unbranded it when rooting. However, there is no full RUU available for Vodafone UK handsets. However, in my opinion, HTC should not care about that since it's a hardware defect ... but no one seems to know their opinion about it.

[Q] What to do with DEAD pixels

Oh my god, I just noticed that my "new" (~ a month old) desire has a bunch of dead pixels . I counted 6 spots on the display wherer there is at least one dead pixel. One is clear to see, must be more than one pixel dead there. I can clearly tell that they are dead pixels, because if i tilt the phone they change color.
I tried PixelFix App but it did not help. (btw: having SLCD screen)
If nothing helps I will have to make use of the warranty. Will they repair/chang the display?
Anyone with the same problem / a solution? Or should i just go to my providers shop?
Should I remove the screen protector first? If they think I am stupid they might tell my its my own fault, because I am using the screen protector with glue (or whatever).
Well, dead pixels don't change color... remove the screen protector first and wipe the display with a clean, soft cloth the screen, see if they still show.
The warranty should cover this fault when a certain number of dead pixels is reached.
Otherwise, a whole new screen goes for around 130-140 $.
With monitors you need 2 dead pixells so I would say the same about screens.
Sent from my HTC Desire using XDA App
First of all thanks for your quick replies.
Icysoul said:
Well, dead pixels don't change color... remove the screen protector first and wipe the display with a clean, soft cloth the screen, see if they still show.
Click to expand...
Click to collapse
On a black screen they clearly shine bright white or cyan (can't really tell because they are so tiny). If I change the view angle it changes to some kind of red.
Do such apps like PixelFixer help at all?
If I remember correctly, the colored stuck pixels that have other color than black are called sub-pixels and are the components of a "full-fledged" pixel, so a stuck sub-pixel could be your problem. In any case, neither should change color when tilting the screen.
I never heard of a single case of "healing" a dead pixel problem using a software, although in theory they all say could do it...
Did you remove the screen protector?
Just talk to HTC or your insurance or your carrier and see what they can do. Your still in warranty so best to take the safe route.

Stuck pixel!

I just got a stuck pixel on my phone in the bottom of the screen, i picked it up today from the local T-Mobile store, anyway to pix it or am i gonna have to return it?
best thing to do is to return it for another one
it's very rare to see a stuck LED on the SAMOLED+ screens
it stays even after a reboot?
yea i rebooted it 3 times and i also ran those youtube stuck pixel fixers that flash billion colors on the screen really fast...it didnt work its still there
Stuck Red Pixel
Anyone else have one?
It's really not a big deal, except that I've only had the phone for two days. They usually go away on their own after time but I have to admit it's annoying.. because I purposely look to see if it's their when I'm in the web browser, which is really the only time I see it (only really visible on white background)
take it back and change it ASAP
Dead Black Pixels? Picture not rectangle?
Okay so I was about to go to bed when I realized that the phone died...so I plug it in and I was like wooooahhhh wtfff...
I see all these weird dead black pixels and on top of that the battery isn't perfectly rectangle...the back part is zigzaggy...I tried to take a picture but it doesn't come out..
Try it. Go into a really dark room and turn phone completely off. Plug it in and wait for the battery picture to come on...any of you see the multiple dead black pixels and non rectangular battery? ?
An alternative way that I also tried was a black background on the lock screen...I saw only a few dead black pixels...not as much as plugging it in...dam I thought my batch was perfect...
You can take a screenshot by holding the home key and pressing the lock button.
Sent from my SGH-T989 using XDA App
That wouldn't help because its a hardware problem. I'm going to return it and wait 2 months and get it at a cheaper price....
are you sure those are dead LED?
there's no pixel in SAMOLED displays, each "pixel" is actually a LED
so are you absolutely sure those LED at dead?
if you put a HD picture on screen of a uniform colour, does it leave any black spots?
That's what I meant, thank you for clarifying....I see splotches on dark shades of black...its like the screen is dirty, but isn't.
I actually have a spot I didn't notice until last night, its a red spot that's stuck at the bottom. So that's a dead led?
Sent from my SGH-T989 using xda premium
The_Biz said:
I actually have a spot I didn't notice until last night, its a red spot that's stuck at the bottom. So that's a dead led?
Sent from my SGH-T989 using xda premium
Click to expand...
Click to collapse
a few guys reported the red pixel already
AllGamer said:
a few guys reported the red pixel already
Click to expand...
Click to collapse
Link? I may have to exchange this one now.
Sent from my SGH-T989 using xda premium
i merged the 2 topics
since it's talking practically about the same problem
OK. Thanks.
AllGamer said:
are you sure those are dead LED?
there's no pixel in SAMOLED displays, each "pixel" is actually a LED
so are you absolutely sure those LED at dead?
if you put a HD picture on screen of a uniform colour, does it leave any black spots?
Click to expand...
Click to collapse
I was thinking the same thing. Very rare to see something like that.
interesting
In dark areas..
Go in a dark area and turn your brightness all the way down and got to a greyish picture or the clocks app. I see black spots on my phone.. How bout yall?
Sent From my Galaxy S II T-Mobile
I see the samething when doing the Screen brightening glitch in a dark room.
When I turn off my phone and connect to the charger in the dark, it show the battery charging and surrounding it are black dots and lines. is this even normal? does everyone got that or its my defective device?

Faulty pixel on brand new HOX - but what's wrong with it?

Hi,
I unpacked my new HTC One X grey yesterday and quickly noticed a little dodgy pixel down at the bottom left corner. It isn't a dead pixel, but it doesn't seem to be a stuck pixel either.
What I noticed was that when using an app which has the little black menu bar down the bottom one pixel was always shining white.
But when I used the 'Colours Dead Pixel Detect and Fix It' app I discovered that this little pixel can be any colour, including black -- but that it just doesn't take the colour its supposed to - the detect and fix app has a black menu bar down the bottom so the pixel should always be black, but the pixel takes on the colour which is flashing on the rest of the screen. When the screen is blue the pixel is blue, when the screen is white the pixel is white, when the screen is black the pixel is black. But it should be black all the time with that app.
Does anyone have any idea what the problem is? Is it a software problem? I tried restarting the phone with no luck.
Thanks!
monkeywriter said:
Hi,
I unpacked my new HTC One X grey yesterday and quickly noticed a little dodgy pixel down at the bottom left corner. It isn't a dead pixel, but it doesn't seem to be a stuck pixel either.
What I noticed was that when using an app which has the little black menu bar down the bottom one pixel was always shining white.
But when I used the 'Colours Dead Pixel Detect and Fix It' app I discovered that this little pixel can be any colour, including black -- but that it just doesn't take the colour its supposed to - the detect and fix app has a black menu bar down the bottom so the pixel should always be black, but the pixel takes on the colour which is flashing on the rest of the screen. When the screen is blue the pixel is blue, when the screen is white the pixel is white, when the screen is black the pixel is black. But it should be black all the time with that app.
Does anyone have any idea what the problem is? Is it a software problem? I tried restarting the phone with no luck.
Thanks!
Click to expand...
Click to collapse
get a replacement, it's a hardware problem properly.
I also have one pixel like this.. thought about replacing the phone but my unit doesn't have other problems so i decided to live with it for now.. gonna send it to repair some day.
Sent from my HTC One X using Tapatalk 2
if its only a pixel i wouldnt worry about it, your eyes and brain will get used to it, however if you can return it still then go return it otherwise if you are out of return period then just keep it if everything else ok
thanks
What do you think it is though? So I can tell them when I call to have it replaced. It's not a dead pixel as they're just dark, and stuck pixels are just a single colour... ?
Thanks!
white pixel? visible at bright area and angles?
probably hot pixel
It's not just white though - it seems to take on the colour of whatever is brightest near it - so if the bulk of the screen is red then it's red, if the bulk of the screen is green then it's green. But if the rest of the screen is black then it's black. If it were a hot pixel wouldn't it always be white even if the bulk of the screen were black?
Thanks!
monkeywriter said:
It's not just white though - it seems to take on the colour of whatever is brightest near it - so if the bulk of the screen is red then it's red, if the bulk of the screen is green then it's green. But if the rest of the screen is black then it's black. If it were a hot pixel wouldn't it always be white even if the bulk of the screen were black?
Thanks!
Click to expand...
Click to collapse
yup this is what im talking about, i returned my second HOX for this reason
its either a hot pixel or spec of dust under the glass
I've left it flashing with that stuck pixel fixing app in the probably vain hope that it will work - really don't want to have to wait for a replacement!
monkeywriter said:
I've left it flashing with that stuck pixel fixing app in the probably vain hope that it will work - really don't want to have to wait for a replacement!
Click to expand...
Click to collapse
sorry bro don't bother pixel fixer wont help with it
its not a dead pixel
had the same and returned phone. for me, the pixel was always black.
where exactly was it located at yours? mine was in the left corner as well. more exactly: when you are in the homescreen and have the google play icon in the down left corner, the pixel was in the word "play" under the icon.
Mine's in the black menu bar at the bottom - on the home screen just to the right of the green mouthpiece on the telephone icon.
Hi
monkeywriter said:
It's not just white though - it seems to take on the colour of whatever is brightest near it - so if the bulk of the screen is red then it's red, if the bulk of the screen is green then it's green. But if the rest of the screen is black then it's black. If it were a hot pixel wouldn't it always be white even if the bulk of the screen were black?
Thanks!
Click to expand...
Click to collapse
It doesn't sound like a faulty pixel in the typical sense, more the pixel connection has become coupled to another one, sort of a short circuit somewhere. This could be a fault in the LCD screen, the ribbon connection, or the LSI driving the display.
Either way just call it a dead pixel, as long as you describe how they will see it so they confirm it isn't right it shouldn't be a problem.
Regards
Phil
Thanks guys, much appreciated. They're sending a replacement on Tuesday. let's hope this one is flawless!

Display issues

Hi,
I've just noticed that on the left hand side of my screen I have a vertical bar around 2mm wide that looks corrupted in some way - like filled with horizontal hatched lines that I'm assuming are defective pixels or similar. It's a bit hard to describe, and even harder to get a decent photo of the problem. The attached is the best I could do.
The issue seems to be there all of the time, but is less noticeable on solid white / black backgrounds than it is on block colours.
Is this likely to be hardware issue, and would it be covered under UK warranty?
Thanks
cjc.
cjc1664 said:
Hi,
I've just noticed that on the left hand side of my screen I have a vertical bar around 2mm wide that looks corrupted in some way - like filled with horizontal hatched lines that I'm assuming are defective pixels or similar. It's a bit hard to describe, and even harder to get a decent photo of the problem. The attached is the best I could do.
The issue seems to be there all of the time, but is less noticeable on solid white / black backgrounds than it is on block colours.
Is this likely to be hardware issue, and would it be covered under UK warranty?
Thanks
cjc.
Click to expand...
Click to collapse
That definitely looks like a faulty panel. Nothing like that on my 10 (Carbon Grey, Tianma).
I'd get in touch with HTC UK and see what they think.
I have exactly the same issue and i've had my phone a week. I didn't notice it at first but it's definitely more noticeable on non white backgrounds, i've checked it with a screen tester which you can go through blocks of colour with. I also have the same slight dip in the top left.
How has your warranty claim gone with HTC? I'm going to try phoning them up today. I bought my phone from Very.co.uk but would rather deal directly with HTC.
Following this as well as I have stuck pixels in the middle of the screen. Very have been difficult to deal with so I'd really like to know how things go with HTC UK
Hey just as a follow up. very.co.uk refunded me with no questions asked. They don't do replacements so you have to re-order.

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