Database Users

Brand new SGS2, screen defect

I just took delivery of my SGS2 yesterday, and I gotta say I absolutely love this phone. Coming from an LG eXpo with WinMo 6.5 and never having used Android, it doesn't even feel like a phone. Plus with all the easy integration with my Google accounts, I've never had a smoother transition to a new device before. All this makes it all the more difficult for me to have to send it back...
I'm not sure if anyone else has encountered this problem, but it looks like my phone came pre-packaged with burn in or something in the form of a dark circle near the upper right side of my screen. I've attached some photos of what it looks like.
I noticed this abnormality in the first 10 minutes or so of using the phone while looking at some photos on my Picasa account. I almost feel like this phone could have been a refurb unit, or the screen was reused or something. In fact, there appears to be more substantial burn in than I can photograph, as there are several other places where I can see strange distortions. Most, if not all, only show up when the brightness is less than 100%. I'd thought maybe it was some widget that caused the burn in, but I haven't been able to figure out which one it could be.
Anywho, I've already arranged an RMA thru Expansys-USA, and they did so without even asking any questions after my email with photos of the problem. So far I've received amazing support from Expansys-USA and definitely recommend them. Also going to see if I can request a replacement sent before I send back this one so I won't be without a phone during the shipping time, something they mention is possible in the RMA email (though they do charge you for it, to be refunded once they get the defective unit back and inspect it).
Would be interesting to see if anyone else has this problem. If there's already another post on this subject, sorry about this new one... didn't see any when I searched tho.

I can see the same thing on mine if I put it on the lowest brightness setting and display a grey image. Nowhere near as pronounced as on yours though, have to really really look for it, so can't be arsed to do anything about it.
Interesting that it's a perfect circle though, could it be just above the CPU or something?

Nope, haven't got that circle on mine at all.

Maybe an assembly worker lost their wedding ring, lol...
You'll be fine, it's an RMA for sure!

Defo a faulty phone
Sent from my GT-I9100 using XDA App

I believe that mark is from the vacuum suction cup on the assembly line from the automated machine that handles positioning the display component. It technically should disappear over time, but I don't know how long.

I don't think it's the CPU, though to be honest I'm not sure where it is under the screen. There is that odd gold-colored sensor or whatever under that area, I think.
If it's a wedding ring, maybe this phone's worth more than the sticker price! haha
Vacuum cup huh... that's pretty bad if it's damaging the screen while doing that. I don't want to wait and see if it will disappear. If I do wait and it doesn't go away I'll be out $725 on a phone with a screen that'll constantly bug me.
Kinda funny, as I was looking at the photos I attached, I saw two rings... one in the photo, and the real one. Startled me when I first saw it.

I didnt have the same problem as you but i had line banding or something on my one.. i had to replace it 4 times then noticed it overheated+smell coming from it.. so i just returned it and got my money back.
Just be aware that you might get another faulty phone.. If i was you i would wait till it comes out in the US.

That sucks, and it's not good that other people are having some issues as well. Good to hear that Expansys is honoring their agreements though

This is why I don't import anymore

RogerPodacter said:
I believe that mark is from the vacuum suction cup on the assembly line from the automated machine that handles positioning the display component. It technically should disappear over time, but I don't know how long.
Click to expand...
Click to collapse
Could well be spot on. I don't know if I'm imagining this, but I'm having more and more trouble seeing this ring on my display heh (had the phone for 9 days now).

RedBlueGreen said:
I didnt have the same problem as you but i had line banding or something on my one.. i had to replace it 4 times then noticed it overheated+smell coming from it.. so i just returned it and got my money back.
Just be aware that you might get another faulty phone.. If i was you i would wait till it comes out in the US.
Click to expand...
Click to collapse
Man, that's really unlucky! Knock on wood, I hope I don't get another bad one. However I'm not sure waiting will do me much good. History has shown me that branded devices tend to have a lot of crap on them and lack certain features at times, and I don't have as much time as I used to to keep up with the scene to make the phone operate better all the time. Also, I'm contract-free with unlimited data on AT&T, and I don't like being locked into contracts. This isn't my first non-US phone, though. I'm happy to pay the extra money so long as it means I don't have to sign a contract.
drleospaceman said:
This is why I don't import anymore
Click to expand...
Click to collapse
From the Expansys-USA thread, sounds like they'll ship the phone back to the UK to have it serviced for you if it ever goes bad. This doesn't sound uncommon, either, as I've had a friend here ship his JP Xbox 360 back to Japan to have it serviced (with a another friend's JP address), and another friend in Japan had his laptop sent back here to have it serviced. Also, there's always the chance a non-import one will be bad, too. Luck of the draw, I guess, and perhaps early-adopter woes. lol

Got my replacement on Saturday, been playing with it ever since to see if I could find any further problems. Definitely no circle this time around, and some of the vertical banding I saw on my old phone in the notification screen is gone, but now has some very slight horizontal banding. Not a deal-breaker tho, so this one's staying with me. Also, hard to tell but I think the yellow/dark left screen problem is present, but so slight I can barely detect it if it's there and not a trick of the eye.
Gotta thank Expansys-USA for their great customer service. I'll definitely order from them again.

-Tj- said:
I just took delivery of my SGS2 yesterday, and I gotta say I absolutely love this phone. Coming from an LG eXpo with WinMo 6.5 and never having used Android, it doesn't even feel like a phone. Plus with all the easy integration with my Google accounts, I've never had a smoother transition to a new device before. All this makes it all the more difficult for me to have to send it back...
I'm not sure if anyone else has encountered this problem, but it looks like my phone came pre-packaged with burn in or something in the form of a dark circle near the upper right side of my screen. I've attached some photos of what it looks like.
I noticed this abnormality in the first 10 minutes or so of using the phone while looking at some photos on my Picasa account. I almost feel like this phone could have been a refurb unit, or the screen was reused or something. In fact, there appears to be more substantial burn in than I can photograph, as there are several other places where I can see strange distortions. Most, if not all, only show up when the brightness is less than 100%. I'd thought maybe it was some widget that caused the burn in, but I haven't been able to figure out which one it could be.
Anywho, I've already arranged an RMA thru Expansys-USA, and they did so without even asking any questions after my email with photos of the problem. So far I've received amazing support from Expansys-USA and definitely recommend them. Also going to see if I can request a replacement sent before I send back this one so I won't be without a phone during the shipping time, something they mention is possible in the RMA email (though they do charge you for it, to be refunded once they get the defective unit back and inspect it).
Would be interesting to see if anyone else has this problem. If there's already another post on this subject, sorry about this new one... didn't see any when I searched tho.
Click to expand...
Click to collapse
I too have this issue at the bottom left of my screen, But i donno how to go about it, should i go ahead and ask for a replacement?? what did u do
Hardly noticable though

Tj,
I too have this issue at the bottom left of my screen, But i donno how to go about it, should i go ahead and ask for a replacement?? what did u do
Hardly noticable though

I would have it exchanged for another if you can. I had mine exchanged, but since I went with the cheap option the whole ordeal took almost a month (slow shipping). My replacement doesn't have a defect, but it's possible I have the yellow tint problem others have been reporting. I don't see it tho, and if it's there it doesn't bother me.
Sent from my GT-I9100 using XDA Premium App

[Q] Is this normal?

Just recieved my Nexus 7 today and when going to turn it on, I was greeted by a fantastic grey, washed out screen. This can't be normal can it? Has anyone else had this problem and managed to fix it? Any help would be greatly appreciated! I have attached an image for people to inspect, and the only reason I am creating a new thread is because I don't think this is the same issue as the other 'screen washed out' thread. Thanks!

Oh wow. There is no easy way to say it but, no, that is not normal. It may be just that the display cable is not connected all the way or that there actually is something wrong with the screen itself. Either way though, I would RMA that. Tell Google to overnight it like the rest of them that are shipping and you want it advance RMAed.
The problems with these devices is unacceptable.
Sent from my Nexus 7 using xda premium

Hmm this is going to seem VERY weird, but just two seconds ago, I got up out of my chair quickly while holding the device and now the screen looks fine. What is going on with the QC with these? Would you reccomend still RMAing it? I am not even joking, I simply stood up with the device and it fixed itself.
EDIT: Well guess what. I left the device off for the duration of just writing this post and it is back to its washed out self. Looks like it's time to RMA!

smt8544 said:
Hmm this is going to seem VERY weird, but just two seconds ago, I got up out of my chair quickly while holding the device and now the screen looks fine. What is going on with the QC with these? Would you reccomend still RMAing it? I am not even joking, I simply stood up with the device and it fixed itself.
Click to expand...
Click to collapse
Yes, definitely. Just because the problem has(or so it appears to have) fixed itself for the time being doesn't mean that the problem won't creep up or just full blown come back right out of warranty/return window. Also, if something like that got through quality control, what else could be wrong with the device? I would still RMA to be sure. Since this problem appears to be coming and going, I would try to send a picture of the problem in action to someone at Google and have them attach it to your RMA. Maybe even try to put your Google email address in there on a piece of paper or something so that they know that you indeed did take the picture because if they recieve it with no apparent problems, they will assume that you are just returning the device and charge you a 15% surcharge.
Sent from my Nexus 7 using xda premium

Your not the only one that has this problem looks like first batch shipments have alot defects and bugs

Thanks very much for your replies! I have used the Google Play 'contact us' page (not sure if this is the best way but it's a start!) to get this RMA going. Very annoyed at the QC on this device and this many glaring issues really doesn't give me high hopes about the replacement either.

Already sent mine back to ebuyer. Had light bleed. So annoying. Rushed them out I think.
Sent from my HTC One S using xda app-developers app

i reckon you're very unlucky, since this only happens to a handful amount of people, good luck in ur rma request

Questions go in the Q&A section

Things to check when my google nexus 7 arrives to make sure everything is fine in it?

Hya,
I'm new on here , so please be easy on me with my question :angel: . I recently purchased Google nexus 7 tablet from some local website who asks the customers to report any defect with in one day, only then they will ship new product :crying: , So I'll get one day for checking . Since Google hasn't launched Google nexus 7 tablet here (India) officially, so I'm getting the imported one, website support peoples even ain't aware of how to get warranty if product gets turned in to black box .
I saw some q/a here and I found many peoples having problem with product (related hardware ones) . I'd be thankful if you guys could list some basic things to check pertaining to hardware of product to make sure everything is fine

Hi, I'm on my 5th replacement and everyone had a different fault!
First you want to check round the edge of the screen to make sure the glass is flush with the case and not raised up so you can push it down with your finger, If anywhere the problem is normally down the left side. (DON'T TRY TO REPAIR IT YOURSELF WITH THE SCREW FIX TUTORIALS!) In most cases the fix is just temporary and the problem returns. This is a defect!
The next thing you want to do is check for dead pixels & white light bleed out around the edge of the screen. This app is perfect for the job.
https://play.google.com/store/apps/details?id=net.ujacha.deadpixel
Next you want to check the speakers by cranking them up to 100% and play several video or audio files to check for crackling/distortion/popping.
It's well known that the speakers are very cheap but they should still be crystal clear with the volume at it's highest.
Now you want to check the touch screens response. There is an issue with the screen not responding after heavy processing/game play where the screen becomes unresponsive down one half of the screen and only locking/unlocking the screen solves the problem.
First I would advise hammering the N7 with a game that is Tegra 3 supported for example Dead Trigger or Shadow Gun to get it nice and hot if at any time the screen becomes unresponsive then you have the same issue.
To double check run this app, you should quite easily be able to detect all ten fingers on the screen at all times.
https://play.google.com/store/apps/details?id=com.the511plus.MultiTouchTester
The last thing I would check is the connectivity through Wi-Fi & Bluetooth, this is the least common fault as far as I know. Just check you have nice strong signals with no drop outs.
So after all that if you have managed to put a tick in all the boxes I reckon you have a sweet device!
I hope this helps you and any one else out there and that you have more luck than I had finally getting a perfect working N7.
Sent from my Nexus 7 using xda app-developers app

Great question (although I don't know if it's a dupe). Thanks for all the info mr_tris. That sucks you're having so many issues. I haven't noticed anything wrong with mine since I got it yesterday, but I'll check all the things you mentioned when I have the tablet in front of me.
Billy

@mr_tris jeez!! 5 replacement means something and very horrible so to speak . I really appreciate help and advises you posted. I'll make sure to check them out .
The only problem I'll have if found any problem in device is that I'll have to wait another 20 days since the new product will be imported by website peoples for me to make replacement

One other thing to check: the gyro.
Does the screen rotate normally or do you have to turn the device so the screen is practically vertical (assuming you choose to unlock rotation via the notification panel).
If you are into gaming, try a driving game or something to make sure the cars don't veer left or right.
I had this trouble on my second one and have read of quite a few other people having the same problem.

The only real issue I've heard about is the screen raising above the bevel some. Yea this is a defect as the screws are too long and pushes the screen out. Returning it 50 times isn't going to fix it. Only by chance may you get one where the screw is slightly smaller (1mm). The solution is to make a little washer out of some plastic and put it under the screw. It doesn't need much to fix it. The cover pops off just like a regular battery cover and the screws are right there. If it is a problem for you, why NOT try to spend 2 min and just fix it yourself?
You wouldn't even notice unless someone pointed it out. You literally have to turn the N7 and look across the screen to even notice it. Hardly anything to freak out about.
Some people have blown their speakers already too. Most have been after a long session of movie watching or music. I suggest to not blow your speakers out (using at Max volume for extended periods) right out of the box. Let the speakers break in first. Honestly the speakers are so loud anyway that I normally have it at 50% volume Max. Probably not an issue either but its good usage practice.
I've also heard of one or two screens fritzing out with lines and fades. Probably nothing to concern yourself with.
I haven't heard of anything else but I guess it would always be best to check it out thoroughly.
I do recommend unlocking first thing because it wipes all data including storage and saves. I'm using EOS rom and its heavenly. Trinity kernel is also awesome because he tweaks the colors of the screen to pop more.
Sent from my Nexus 7 using xda premium

shaneydroid said:
One other thing to check: the gyro.
Does the screen rotate normally or do you have to turn the device so the screen is practically vertical (assuming you choose to unlock rotation via the notification panel).
If you are into gaming, try a driving game or something to make sure the cars don't veer left or right.
Click to expand...
Click to collapse
Well I just installed Puddle and Riptide and my gyroscope is offset by 11% to the right. I can calibrate it with the compass app but it goes back to normal when you reboot it!
RMA form is completed and Replacement No.6 is on its way! :-/
Sent from my Galaxy S2 using xda app-developers app

My nexus 7 arrived today and I must say it's flawless so far I checked . No screen separation, no dead pixel, tested touch with app, played games , voice etc . The SSN starts with C60

mr_tris said:
Well I just installed Puddle and Riptide and...
Click to expand...
Click to collapse
Wait... what? I don't see anything (relevent) in the Play Store with those names. Gotta link please?
Thanks!
Billy
Sent from my Nexus 7 using Tapatalk 2

Beamon said:
Hya,
I'm new on here , so please be easy on me with my question :angel: . I recently purchased Google nexus 7 tablet from some local website who asks the customers to report any defect with in one day, only then they will ship new product :crying: , So I'll get one day for checking . Since Google hasn't launched Google nexus 7 tablet here (India) officially, so I'm getting the imported one, website support peoples even ain't aware of how to get warranty if product gets turned in to black box .
I saw some q/a here and I found many peoples having problem with product (related hardware ones) . I'd be thankful if you guys could list some basic things to check pertaining to hardware of product to make sure everything is fine
Click to expand...
Click to collapse
Most important things are:
Screen - check viewing angles and color reproduction in the dark. Best reference is to use a site like GSMARENA for high res photos and screen reviews.
Body - Look for cracks or scratches, especially around ports and the headphone jack.
Things to disregard:
Slow system - this is just something you will have to deal with in an android environment.
Warm after prolonged use - again, normal.

JeepFreak said:
Wait... what? I don't see anything (relevent) in the Play Store with those names. Gotta link please?
Click to expand...
Click to collapse
You need to install Tegra Zone from Play Store then you'll find them there.
Sent from my Nexus 7 using xda app-developers app

player911 said:
The only real issue I've heard about is the screen raising above the bevel some. Yea this is a defect as the screws are too long and pushes the screen out. Returning it 50 times isn't going to fix it. Only by chance may you get one where the screw is slightly smaller (1mm). The solution is to make a little washer out of some plastic and put it under the screw. It doesn't need much to fix it. The cover pops off just like a regular battery cover and the screws are right there. If it is a problem for you, why NOT try to spend 2 min and just fix it yourself?
You wouldn't even notice unless someone pointed it out. You literally have to turn the N7 and look across the screen to even notice it. Hardly anything to freak out about.
Some people have blown their speakers already too. Most have been after a long session of movie watching or music. I suggest to not blow your speakers out (using at Max volume for extended periods) right out of the box. Let the speakers break in first. Honestly the speakers are so loud anyway that I normally have it at 50% volume Max. Probably not an issue either but its good usage practice.
I've also heard of one or two screens fritzing out with lines and fades. Probably nothing to concern yourself with.
I haven't heard of anything else but I guess it would always be best to check it out thoroughly.
I do recommend unlocking first thing because it wipes all data including storage and saves. I'm using EOS rom and its heavenly. Trinity kernel is also awesome because he tweaks the colors of the screen to pop more.
Sent from my Nexus 7 using xda premium
Click to expand...
Click to collapse
what Trinity kernel does the color tweaks?? i am on CM10 M-Series with Trinity V111, i dont see the tweaks any where??

I just gave a Nexus 7 to my wife for her Birthday yesterday. I must be working fine since her was on it all day yesterday and for the last several hours this evening. If anything was wrong with it, she would of discovered it by now.

When it arrives turn it on, set it up and enjoy it. Don't make urself miserable looking for flaws. If you don't notice anything out of the box don't go looking for issues. Trust me....
Sent from my Nexus 7 using xda premium

SPreston2001 said:
If you don't notice anything out of the box don't go looking for issues. Trust me....
Click to expand...
Click to collapse
I wish I could have that attitude about my electronic devices. It would be a shame for someone to find a defect after the 15 day return grace period just because their device might be OK and they never bothered checking it. You must have spare money to burn. :what:
Sent from my GT-I9100 using xda app-developers app

mr_tris said:
I wish I could have that attitude about my electronic devices. It would be a shame for someone to find a defect after the 15 day return grace period just because their device might be OK and they never bothered checking it. You must have spare money to burn. :what:
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
No I don't have money to burn lol but I just don't think its worth the stress of over examining for defects. If you look hard enough you will see that something isn't 100% straight or a tiny spec of plastic is sticking out or whatever and then it will stand out like a sore thumb once you've noticed it lol. Give it a glance over and if it looks good to you then enjoy your tablet.
Sent from my Nexus 7 using xda premium

I have flawless c80 here, no raising lcd, no others failures here.. You gotta have some luck sometimes.

Fix your dead pixel :)

i was really skeptical at first but then i decided to just try this on my old htc evo 3d and it friggin worked :highfive: (took about 40mins though)
https://play.google.com/store/apps/details?id=com.htc.chris.blackspotdetect&hl=de

Good joke!

caribouxda said:
Good joke!
Click to expand...
Click to collapse
How is it a joke? Not too familiar with stuck pixels, are you? It IS possible to unstick them, and this is one way.

Toxina said:
i was really skeptical at first but then i decided to just try this on my old htc evo 3d and it friggin worked :highfive: (took about 40mins though)
https://play.google.com/store/apps/details?id=com.htc.chris.blackspotdetect&hl=de
Click to expand...
Click to collapse
Thanks for posting. Anything that won't harm the phone is worth a shot before requesting RMA.

nickmv said:
How is it a joke? Not too familiar with stuck pixels, are you? It IS possible to unstick them, and this is one way.
Click to expand...
Click to collapse
You cannot fix a hardware problem with some app. The pixel is dead meaning you can consider it faulty screen. You really believe that app fixes it for real lol? If so alright good for you, but the rest of people that value the money they spent on this phone, I would recommend doing rma if they have dead pixels because they can increase in number as time passes. Do not feel sorry for lg and google. They make bellions. Keep rma till you feel you get a good unit. People pay premium prices and so should be what they get in return.

caribouxda said:
You cannot fix a hardware problem with some app. The pixel is dead meaning you can consider it faulty screen. You really believe that app fixes it for real lol? If so alright good for you, but the rest of people that value the money they spent on this phone, I would recommend doing rma if they have dead pixels because they can increase in number as time passes. Do not feel sorry for lg and google. They make bellions. Keep rma till you feel you get a good unit. People pay premium prices and so should be what they get in return.
Click to expand...
Click to collapse
The OP mistaken "stuck pixel" with "dead pixel"
You can fix stuck pixels..
btw this app is a lot better to detect dead or stuck pixels.
https://play.google.com/store/apps/details?id=com.gombosdev.displaytester&hl=en

caribouxda said:
You cannot fix a hardware problem with some app. The pixel is dead meaning you can consider it faulty screen. You really believe that app fixes it for real lol? If so alright good for you, but the rest of people that value the money they spent on this phone, I would recommend doing rma if they have dead pixels because they can increase in number as time passes. Do not feel sorry for lg and google. They make bellions. Keep rma till you feel you get a good unit. People pay premium prices and so should be what they get in return.
Click to expand...
Click to collapse
the only downside to rma with the nexus 5 is google makes you pay for a new phone, get that new phone and ship it back in the box they send you. not everyone has another $450 to drop on another 32gb model nexus 5

I have a stuck pixel that needs to be fixed. I'll run the app for 30 mins and post up the results in a bit

Toxina said:
i was really skeptical at first but then i decided to just try this on my old htc evo 3d and it friggin worked :highfive: (took about 40mins though)
https://play.google.com/store/apps/details?id=com.htc.chris.blackspotdetect&hl=de
Click to expand...
Click to collapse
I ran it for an hour and it did not fix it... it did make it less noticeable though

Just ran it twice, 30mins each time but unfortunately it had no effect on the 1 stuck pixel I have. I'll try it with a few other apps and post up results if anything is successful

Hi
Dead or stuck pixels are faulty pixels. Flashing colours does not fix them, it is snake oil.
What usually happens is the process of running these apps for 30 minutes or so just heats up the display and some faulty pixels have connection faults that fix themselves with the stresses caused by expansion due to the heat. It is the same process that means gentle pressure can sometimes "fix" a faulty pixel if the fault is of a certain type on an LCD monitor. Pressure on mobile phones doesn't work as well as the front glass and display is designed not to flex under the pressure of a finger for obvious reasons.
If you are lucky, a pixel that starts working may continue to work, usually however it will just fail again at some point in the future. These faulty pixels that work for a while are the same ones that appear after an hour, a day or a week of using the phone after you thought you had a perfect screen. The fault was always there.
The best thing if you don't want faulty pixels and find them, is not to try and fix them, but to exchange the phone. Better to exchange it sooner rather than later.
Regards
Phil

PhilipL said:
Hi
Dead or stuck pixels are faulty pixels. Flashing colours does not fix them, it is snake oil.
What usually happens is the process of running these apps for 30 minutes or so just heats up the display and some faulty pixels have connection faults that fix themselves with the stresses caused by expansion due to the heat. It is the same process that means gentle pressure can sometimes "fix" a faulty pixel if the fault is of a certain type on an LCD monitor. Pressure on mobile phones doesn't work as well as the front glass and display is designed not to flex under the pressure of a finger for obvious reasons.
If you are lucky, a pixel that starts working may continue to work, usually however it will just fail again at some point in the future. These faulty pixels that work for a while are the same ones that appear after an hour, a day or a week of using the phone after you thought you had a perfect screen. The fault was always there.
The best thing if you don't want faulty pixels and find them, is not to try and fix them, but to exchange the phone. Better to exchange it sooner rather than later.
Regards
Phil
Click to expand...
Click to collapse
Than you for this post. I have a very very small dead pixel in the center of my screen and it really doesn't bother me. I have to adjust my eyes and have a white background to see it.. Would this damage the screen further or do you think it would be fine? I don't want to have to get a replacement lol
Sent from my Nexus 5 using Tapatalk

eastpac said:
Just ran it twice, 30mins each time but unfortunately it had no effect on the 1 stuck pixel I have. I'll try it with a few other apps and post up results if anything is successful
Click to expand...
Click to collapse
Exchange it if it bothers you when you have a dead pixel, as your display should be as good as the money you paid imo

Hi
dex2grigg said:
Than you for this post. I have a very very small dead pixel in the center of my screen and it really doesn't bother me. I have to adjust my eyes and have a white background to see it.. Would this damage the screen further or do you think it would be fine? I don't want to have to get a replacement lol
Sent from my Nexus 5 using Tapatalk
Click to expand...
Click to collapse
It is very unlikely to become any worse, so if you are okay with it no problem, you do not need to worried about more failing.
Generally LCD displays have an allowable number of dead/stuck pixels anyway. This is because otherwise the yield would be much lower as displays would be thrown out putting the price very high. http://en.wikipedia.org/wiki/Defective_pixel
Regards
Phil

Thanks!! This helped with 3-4 stuck pixels i had. Eventually i'll do an RMA but for the time being it helped.

PhilipL said:
Hi
It is very unlikely to become any worse, so if you are okay with it no problem, you do not need to worried about more failing.
Generally LCD displays have an allowable number of dead/stuck pixels anyway. This is because otherwise the yield would be much lower as displays would be thrown out putting the price very high. http://en.wikipedia.org/wiki/Defective_pixel
Regards
Phil
Click to expand...
Click to collapse
Regardless of the allowance, Google will RMA a phone with a single dead pixel, no questions asked.

RedBlueGreen said:
The OP mistaken "stuck pixel" with "dead pixel"
You can fix stuck pixels..
btw this app is a lot better to detect dead or stuck pixels.
Click to expand...
Click to collapse
Than app is quite good indeed, but unfortunately it doesn't support yet the full screen...
So it can't be used to detect dead-pixels which are located at the bottom of the screen.
I suggest you using this one, instead, which supports full-screen and can be used to detect dead-pixels and fix stuck-pixels:
search Perfect Pixel Checker on Google Play, because the board doesn't let me post links yet.

Il.Socio said:
Than app is quite good indeed, but unfortunately it doesn't support yet the full screen...
So it can't be used to detect dead-pixels which are located at the bottom of the screen.
I suggest you using this one, instead, which supports full-screen and can be used to detect dead-pixels and fix stuck-pixels:
search Perfect Pixel Checker on Google Play, because the board doesn't let me post links yet.
Click to expand...
Click to collapse
Yes it does. It absolutely will render on the entire screen. You just have to touch the screen & the status & nav bars will hide.

FWIW I did something similar to my 6 year old Apple Cinema HD display and it worked wonders ironing out stuck & burned pixels.

ran for over 12 hours and didn't fix any of the stuck pixels on both the devices I received that were faulty. RMA'ed first, and now waiting for replacement for my other one. Hopefully 3rd time is a charm.

screen retention (ghosting)

Anyone having issues with ghosting on there v20?? Any fix if so r is it Rom related. In on vs995 weta Rom 5.0.7 7.0

I'm starting to have issues with image retention on mine.
I'm stock unrooted.
I wonder if this is covered under warranty.. it's not super annoying but still.

I am having a curious issue with the second screen. Under bright light or sunlight, the top right corner of my screen starts to flicker. Well, the brightness increases and decreases. At the beginning quite slowly and then at a higher pace. However, when I'm indoors it doesn't seem to happen, or at least not too foten.
I've tried with and without automatic brightness. I have also tried installing Lux and the issue still persists.
What I realised is that the flickering comes from the backlight of the second screen, and if I disable it, problem solved. I might Have to give it a hard reset and hope is not a hardware problem.
Has anyone experienced the same?

I posted something similar a while ago on this topic. On my left side of the screen I could see what seemed to be screen burn or something. It would be a yellowish tint that would display the keyboard and part of a screen from the app. But it seemed to be the same app everytime. I never found a solution, I had to turn the phone in for a different reason. The ffc just stopped working and would freeze my phone up.

Screen Retention\Ghosting
kbrn said:
I'm starting to have issues with image retention on mine.
I wonder if this is covered under warranty...
Click to expand...
Click to collapse
Datblkbro said:
Anyone having issues with ghosting on there v20?? Any fix if so r is it Rom related.
Click to expand...
Click to collapse
Same problem.
Stock, no root.
Is covered under warranty?
Did you solve the problem?

yurasik_687 said:
Same problem.
Stock, no root.
Is covered under warranty?
Did you solve the problem?
Click to expand...
Click to collapse
I haven't tried to take the phone to see if it can be fixed, but I have done some research and after reading many posts of people having either the G4,V10 and V20 most have been honored under warranty having their screens replaced but the problem comes back, some people claim having their screens more than one time.
I think I can live with it.. I don't wanna risk having the phone scratched or damaged somehow by the person making repairs (I like to keep my phones in mint condition) and I have a Huge OCD problem lol

I think joining XDA is an indicator of having a degree of OCD
Although I'd class mine as low I'd not be happy with the retention exhibited in those pics.
Thankfully my V20 hasn't presented any inherrent problems so far, just the odd temporary ones that happen when modding, but they're soon remedied.
Since @emdroidle gave us root for the H990ds its been great having the chance to open it up and explore more of its potential.

yurasik_687 said:
Same problem.
Stock, no root.
Is covered under warranty?
Did you solve the problem?
Click to expand...
Click to collapse
As far as I've read this is just a quirk of these LCD screens that LG uses on their phones. It should go away pretty quick as the only time mine shows up like that is when the screen brightness is all the way or very bright for like 5 or 10 minutes. Mine goes away after 5 or 10 minutes.

Download sfilter from play store activate it at 10 % and image ghosting will go away ?

https://www.youtube.com/watch?v=mpmiowtPh_A&feature=youtu.be
Here's my retention.

kbrn said:
I haven't tried to take the phone to see if it can be fixed, but I have done some research and after reading many posts of people having either the G4,V10 and V20 most have been honored under warranty having their screens replaced but the problem comes back, some people claim having their screens more than one time.
I think I can live with it.. I don't wanna risk having the phone scratched or damaged somehow by the person making repairs (I like to keep my phones in mint condition) and I have a Huge OCD problem lol
Click to expand...
Click to collapse
I was looking into the Warranty as well and just read that it can take up to 4 weeks to inspect and repair a unit, so no mobile for maybe 4 weeks or more and I'm not even sure they will accept the retention as a fault of the mobile itself, but give me the blame for it as there are some minor surface scratches from normal daily use.
So it seems the warranty is pretty much to the bin and reading stories from others about sending there phones with issues does not really make me want to send it back either. Who knows how long, and if declined giving me the blame, what a waste of time it has been. feel like iv Wasted enough time already.
They told me to make a full factory reset, which would of cause not solve the issue at all as I already knew - but I did it and sent the video of the retention afterwards - then I was told to look for scratches and I send them a video and 2 pics of what I could find and now being pointed out that maybe if they find out it is from damage that it just might be send back. Damage... Got to give me a break.
I'm not even sure what they would do with it if they accept the fault - would they begin to toy around with it or would they send me a new phone out of the box.
Is it worth it or not... I'm thinking...
For a +500 Euro phone - retention/ghosting should not happen and yet it does. First phone I ever experiences this issue.
I think I'm on the Whine wagon at the moment, sorry guys - just a little annoyed.

Jesus is God Almighty said:
I was looking into the Warranty as well and just read that it can take up to 4 weeks to inspect and repair a unit, so no mobile for maybe 4 weeks or more and I'm not even sure they will accept the retention as a fault of the mobile itself, but give me the blame for it as there are some minor surface scratches from normal daily use.
So it seems the warranty is pretty much to the bin and reading stories from others about sending there phones with issues does not really make me want to send it back either. Who knows how long, and if declined giving me the blame, what a waste of time it has been. feel like iv Wasted enough time already.
They told me to make a full factory reset, which would of cause not solve the issue at all as I already knew - but I did it and sent the video of the retention afterwards - then I was told to look for scratches and I send them a video and 2 pics of what I could find and now being pointed out that maybe if they find out it is from damage that it just might be send back. Damage... Got to give me a break.
I'm not even sure what they would do with it if they accept the fault - would they begin to toy around with it or would they send me a new phone out of the box.
Is it worth it or not... I'm thinking...
For a +500 Euro phone - retention/ghosting should not happen and yet it does. First phone I ever experiences this issue.
I think I'm on the Whine wagon at the moment, sorry guys - just a little annoyed.
Click to expand...
Click to collapse
I did ended up replacing my phone, not under LG warranty though I paid 60 bucks to Sprint to get it swapped. I thought it was better than sending out my phone to LG and wait weeks..
Convenience was the what made me toss the 60 bucks for a new unit.
Though a month later I switched to T-Mobile and upgraded to the V30+
They paid the rest of my installments with Sprint which was half the cost of 2 V20's and also got to keep them.
I use my V20 as a multimedia device now.

kbrn said:
I did ended up replacing my phone, not under LG warranty though I paid 60 bucks to Sprint to get it swapped. I thought it was better than sending out my phone to LG and wait weeks..
Convenience was the what made me toss the 60 bucks for a new unit.
Though a month later I switched to T-Mobile and upgraded to the V30+
They paid the rest of my installments with Sprint which was half the cost of 2 V20's and also got to keep them.
I use my V20 as a multimedia device now.
Click to expand...
Click to collapse
Nice - seems like I'm not going to get much from the warranty on the screen issue and still not sure if I should send it back as I'm afraid they do something stupid to it. Well, if my phone melted down at some point I would still buy an V20 in replacement. Battery and SD card is just a win for me even with all the phones faults. Just so sad that LG did not fix a better screen for the V20 in regards of getting Ghosting/Retention.
Anyway - I just tried one of the fixes I found without jail breaking the phone and it does help a little but far from solved the issue at all. I have ghosting/retention all over the screen now and most likely just going to get worse over time as it has from the beginning of it.

I think the image retention is a bug. It randomly happens on mine. At first I thought it was a crappy screen but then it went away. It will even show dark image retention like using xda. And most of my retention around the inside 1/4 of the screen.
Sent from my [device_name] using XDA-Developers Legacy app

Aymenitoo said:
Download sfilter from play store activate it at 10 % and image ghosting will go away
Click to expand...
Click to collapse
Sadly did not work here. Still have ghosting. 20% won't do either - il try 30%.

Ok I was getting ghosting which has been getting worse and wore the past month but in the past 2 weeks its been getting really bad on both displays, ontop of that my phone was dying in 20-25% range and going up to 100% charge just to drop like 10 minutes later to like 50% probably just the battery idk
I sent my phone in and here is what they marked on the warranty page
Symptom: Software failure
Repair: Download new software
I honestly hope they don't think its because I wasn't on the latest version of android because I kept putting it off or i'm gonna be pissed, especially since my warranty ends 3/18/2018 and these 2 issues have slowly been getting worse.

Hi!
Here is a working fix if your device is rooted.
Link: https://forum.xda-developers.com/v20/how-to/lg-v20-screen-burn-fixed-t3661631

so is this an LG LCD specific issue ? I am just curious when I switch phones should I consider AMOLED / OLED or stick with LCD but maybe a different vendor ?

Jaws4God said:
so is this an LG LCD specific issue ? I am just curious when I switch phones should I consider AMOLED / OLED or stick with LCD but maybe a different vendor ?
Click to expand...
Click to collapse
The culprit behind this is low contrast with high blue-output or cooler color temperature. If you are rooted, you can easily tone down the blue channel by a count of 20 (out of 256) and all is good. Also you don't have to use the phone as maximum brightness all the time, the screen itself is way too bright even for the least level.
2ndly, this ghosting is temporary and develops over time of use. It goes away for LCD.
OLED screens suffer from the permanent ghosting aka burn-in, though its coming over time is delayed by quality and improvement of the manufacturing process. Honestly, OLED's have higher saturation, more vibrance, higher contrast which makes them appeal to human eye but it comes at a cost.

dark_prince said:
The culprit behind this is low contrast with high blue-output or cooler color temperature. If you are rooted, you can easily tone down the blue channel by a count of 20 (out of 256) and all is good. Also you don't have to use the phone as maximum brightness all the time, the screen itself is way too bright even for the least level.
Click to expand...
Click to collapse
Oh cool. thanks for explaining that! I am not rooted... 1. too nervous of causing issues after root .. 2. mine isn't rootable (on most recent security patch)..
so is there anything I can do to help with the blue output?
dark_prince said:
2ndly, this ghosting is temporary and develops over time of use. It goes away for LCD.
OLED screens suffer from the permanent ghosting aka burn-in, though its coming over time is delayed by quality and improvement of the manufacturing process. Honestly, OLED's have higher saturation, more vibrance, higher contrast which makes them appeal to human eye but it comes at a cost.
Click to expand...
Click to collapse
yeah that seems to be what i've read too... I just typically keep my phones for a while and burn in or ghosting worries me...