I've got a messed up screen that happens occasionally - Nexus 9 Q&A, Help & Troubleshooting

Hi guys,
Recently my Nexus 9 would occasionally give me a messed up screen with around 3x10 mm white or other color blocks piled up the entire screen. And flashing.
Sometimes even with shocking noises like biiiiiizzzzzzzzzzzziibibibibibibibizzzzz
It would disappear if I use the power button + volume up combo to force reboot.
Sorry don't have a photo or snapshot yet. I'll try to take one if that happens again.
That did freaks me out when it happened the 1st time.
It just pops out from no where. I've tried to locate where's the cause or the problem but failed.
I just wonder if this is some sort of hardware failure? It does gets quite hot after the screen is on for a while.
Please if anyone ever had the same issue?
And please please please do tell me it's not something wrong with the hardware!
Thanks.

Have the same issue. Seems to happen more likely when the battery is like 50 % or less.

Check out these two threads:
http://forum.xda-developers.com/nexus-9/help/glitched-screen-t3143309
http://forum.xda-developers.com/nexus-9/help/nexus-9wi-fia-screen-flickeron-stock-t3067672
Sounds like you might have the same problem, in which case: yes, it's a hardware problem...

Related

Weird Flicker when turning on the screen?

Hi everyone!, I'm having this really odd issue with my S2. I've only had it about a week now and this could have been happening all along though I didn't notice it.
Basically If the screen is off and I hit the power button is has this really slight flicker as the screen comes on. It's almost like a single line down the screen right before the wallpaper appears. It's also right-justified on the screen and always in the same spot.
Has anyone else had this issue? It can be reproduced by simply hitting the power button to shut the screen off then hitting it again to turn it on.
Thanks!
Edit: Also the screen doesn't always fade on. 3/5 times it will just "instant-on" where I'll hit the power button and it will instantly show the lock screen tile instead of "fading" into it. Does this happen to anyone else or does it ALWAYS fade in?
I'm probably just being paranoid but I'd rather replace the phone quickly to avoid actually sending it to manufacturer.
Thanks again!
You should take a video of it so we can see if it is normal. I don't see what you describe, and not sure the phone is supposed to "fade in" to the lock screen. Mine is always instant on.
I once flashed to Litening ROM and it had that flicker (lightning style) as a feature I guess, is it the same problem OP stated?
Regards.
Saw it once two days ago, vertically on the extreme left of the screen. Haven't seen it since, but it was very rapid - blink-and-you'll-miss-it job. Can't say it worries me. On Revolution FWIW.
B3311 said:
Saw it once two days ago, vertically on the extreme left of the screen. Haven't seen it since, but it was very rapid - blink-and-you'll-miss-it job. Can't say it worries me. On Revolution FWIW.
Click to expand...
Click to collapse
sorry I can't take a video since this is the only device that I own that is capable of taking video.
anyway, yeah - it's really quick. And it's vertically down the screen. I kind of assumed that it was the backlight turning on but I'm pretty certain that happens on the sides right?
Right now it's 10:00 and this issue happens right where the "1" is on the clock at the top of the screen. So starting from that 1 all the way to the bottom.
Again it's REALLY fast - but it's noticeable, I'd have no problem showing it to someone in front of me. It just looks like a single line about the same width as the "1" as well. It almost seems like the one tiny line is showing before the rest of the screen, like if the screen were a "loading process" that line would be the first thing to appear before the rest gets backlit.
Not sure if it matters but it's the model I9100M from Virgin, just incase they are made differently somehow.
This phone has no backlight. The LED's are all individually lit.
Ryne said:
sorry I can't take a video since this is the only device that I own that is capable of taking video.
anyway, yeah - it's really quick. And it's vertically down the screen. I kind of assumed that it was the backlight turning on but I'm pretty certain that happens on the sides right?
Right now it's 10:00 and this issue happens right where the "1" is on the clock at the top of the screen. So starting from that 1 all the way to the bottom.
Again it's REALLY fast - but it's noticeable, I'd have no problem showing it to someone in front of me. It just looks like a single line about the same width as the "1" as well. It almost seems like the one tiny line is showing before the rest of the screen, like if the screen were a "loading process" that line would be the first thing to appear before the rest gets backlit.
Not sure if it matters but it's the model I9100M from Virgin, just incase they are made differently somehow.
Click to expand...
Click to collapse
Hmm, not the same problem as me - certainly nothing to do with the time here - it was in the afternoon when it happened with me, and my lockscreen clock's in 12 hour format. Clock's also at the bottom of my screen.
Been trying to reproduce it, and can't.
B3311 said:
Hmm, not the same problem as me - certainly nothing to do with the time here - it was in the afternoon when it happened with me, and my lockscreen clock's in 12 hour format. Clock's also at the bottom of my screen.
Been trying to reproduce it, and can't.
Click to expand...
Click to collapse
No no, I wasn't saying that the clock had anything to do with it, I was just trying to describe where the line appears on screen. I was also talking about the clock that appears at the very top, not the one on the lock screen. If I just continually tap the power button on and off I can see the "line" appear every time exactly in that spot.
It's pretty noticeable, unless you have the phone away from you - so if you don't see it then it probably isn't happening.
Does anyone think I should return this and get another? I don't really want to run into issues later and have to send to manufacturer. Is this problem big enough that I could get it replaced without issue?
Thank's for the replies!
Sorry, misunderstood. Definitely not my problem, I have no clock in the status bar.
If it happens every time, I'd probably return it if I was you - could be the precursor of something more serious.
Hi again, Thanks for the replies. I realized today that the issue is really only noticeable if you're in a dark room. Even in a semi-lit room it's almost unnoticeable which is probably why I hadnt seen it thus far.
If anyone wouldn't mind flicking the lights off and taking a look I'd appreciate it. If not I'll just return it.
thanks again forum!
I experience it too (at least I think we are talking about the same thing)..it's like it's stuttering and lagging after being in standby. So the first time it renders the lockscreen, the first few frames seem to be rendered at a different pace. If you turn the screen on after a good break, it'll likely do it, but after a few times in a row it instantly shows the screen.
Perhaps it relates to how big the wallpaper for the lockscreen is. I'm not sure, but I've had some huge 2mb pictures set as wallpapers for the lockscreen, and afterwards I think I decided to select a smaller image. I don't know if it was just a placebo effect, but anyways..it still does it with my current picture. I don't really care. You could try a different lockscreen from android market and see if it helps, but I think every SII suffers from this.
I have this exact issue too and it really annoys me! I also bought the phone from Virgin if that is relevant. It's a white streak on the left of the screen for me and only happens every so often. So what's the prognosis? A software fault? Hopefully fixed in a subsequent firmware update? Or a hardware fault worth repairing?

[Q] Green Screen Galaxy

I just picked up my S3 and the whole screen had a hazy green tint on the lock screen and was the same when I unlocked, and I wasn't gonna mess about so rebooted quick and back to normal now, and I read another thread about it but isn't clear why it happens, but I checked the battery graph and there's just a huge gap as if no power was getting through at all, so has anyone else had this happen on S3 and what's causing it?
Michael_P said:
I just picked up my S3 and the whole screen had a hazy green tint on the lock screen and was the same when I unlocked, and I wasn't gonna mess about so rebooted quick and back to normal now, and I read another thread about it but isn't clear why it happens, but I checked the battery graph and there's just a huge gap as if no power was getting through at all, so has anyone else had this happen on S3 and what's causing it?
Click to expand...
Click to collapse
Just had this, I put my phone into my shoulder bag, cycled for 10 minutes, picked up the phone and the entire screen was green as if the red and blue pins from a monitor cable had disconnected.
I'm also having charging difficulties, although that may be the cables.
I'm on CM9, literally just updated to the newest nightly now to see if that sorts any issues. There's something just not quite right about this phone of mine. A quick reset was all it took to sort the screen out but it was scary to think such an issue could occur.
All I know is it's something to do with a sudden dip in power and I read about other phones doing it too very occasionally, and after it happened there was a gap on the battery chart as if the phone was getting no power at all.
Sounds like the OS or at least an important process crashed or got stuck (deadlock, livelock, ...).
Green color has something to do with the rendering process and/or screen calibration. All Galaxy S1 with Voodoo patches for the display color values show a green screen for a very short instant after screen-on.
That also explains the gap in the battery stats since a non-functional OS cannot collect any informations.
Did you run any particular apps which might be causing it?
Without any details I can only recommend the standard package: flash your OS again, factory-reset it.
Maybe wiping the cache is enough. Maybe it's a hardware fault, hard to say...
I just rebooted and I've already upgraded since then, and I wasn't doing anything really at the time except I think that was around the time I used G L to SD and it broke the Play Store, but when it Hulked on me I hadn't touched phone for 40 minutes and that's what I saw when I woke it up. but most people say it's a once in a lifetime thing so not really worried.

[Q] Touchscreen unresponsive stripe - digitizer problem?

My Atrix's screen has become unresponsive in a vertical column (if the phone is in portrait mode) that lines up about with the W, E, and S keys. Restarting fixed the problem for maybe 20 seconds or so after the phone became usable, but doesn't seem to have made a difference after about the third time or so. I also removed the battery and held down the power button for ~45 seconds and then put everything back together, which also seemed to have helped for a minute or less before the stripe became unresponsive again. I also restored to yesterday's backup a couple different times (CM 7.2 stable), which also temporarily helped.
So after a brief search, it seems that the digitizer may be the issue. Is there any way to tell for sure? At first it seemed like a software problem, but it could also just be the digitizer acting erratically because it's going out, so I'm not really sure, and I'd rather not attempt a repair that may not be necessary.
ErrorCode680 said:
My Atrix's screen has become unresponsive in a vertical column (if the phone is in portrait mode) that lines up about with the W, E, and S keys. Restarting fixed the problem for maybe 20 seconds or so after the phone became usable, but doesn't seem to have made a difference after about the third time or so. I also removed the battery and held down the power button for ~45 seconds and then put everything back together, which also seemed to have helped for a minute or less before the stripe became unresponsive again. I also restored to yesterday's backup a couple different times (CM 7.2 stable), which also temporarily helped.
So after a brief search, it seems that the digitizer may be the issue. Is there any way to tell for sure? At first it seemed like a software problem, but it could also just be the digitizer acting erratically because it's going out, so I'm not really sure, and I'd rather not attempt a repair that may not be necessary.
Click to expand...
Click to collapse
there are some screen tester apps on Play which you could use to see if, in fact, your digitizer is a problem.
barry_ said:
there are some screen tester apps on Play which you could use to see if, in fact, your digitizer is a problem.
Click to expand...
Click to collapse
Do you have any specific recommendations? I downloaded the touch test app from here (http://www.freewarelovers.com/android/app/touch-test) to see how much of the screen was misbehaving and discovered that it was a perfect stripe the whole way down, but because I'm not terribly knowledgeable about troubleshooting phone hardware, I don't know if that's telling me it's the digitizer or something else. I attached a screenshot that shows where the stripe is.
ErrorCode680 said:
Do you have any specific recommendations? I downloaded the touch test app from here (http://www.freewarelovers.com/android/app/touch-test) to see how much of the screen was misbehaving and discovered that it was a perfect stripe the whole way down, but because I'm not terribly knowledgeable about troubleshooting phone hardware, I don't know if that's telling me it's the digitizer or something else. I attached a screenshot that shows where the stripe is.
Click to expand...
Click to collapse
#
From what I've seen on here it does look like your digitizer is at fault. I have never had to change mine but there are plenty of posters on here who have and you can look at their experiences to assist you. Also, here's a video I found so you can see what you'll have to do. Good Luck!
http://www.youtube.com/watch?v=grqz-3LdIEk
barry_ said:
#
From what I've seen on here it does look like your digitizer is at fault. I have never had to change mine but there are plenty of posters on here who have and you can look at their experiences to assist you. Also, here's a video I found so you can see what you'll have to do. Good Luck!
http://www.youtube.com/watch?v=grqz-3LdIEk
Click to expand...
Click to collapse
That's unfortunate, but at least I know that's what's wrong. Thanks for your help!

[Q] Rolling screen, please help!

Hi all
Sorry for a newbie question.
I have a Sony Z Ultra which I really like, but recently the screen sometimes just starts rolling for no reason. I cannot read anything, and it often does not stop. I turn the screen off, then on, and it often doesn't show anything but then it does it is still rolling. I have to hard reset, and even then have to do that a few times before it starts up normally. It seems to be happening more frequently. Any ideas on what I can do?
Thanks so much
Craig
csumm said:
Hi all
Sorry for a newbie question.
I have a Sony Z Ultra which I really like, but recently the screen sometimes just starts rolling for no reason. I cannot read anything, and it often does not stop. I turn the screen off, then on, and it often doesn't show anything but then it does it is still rolling. I have to hard reset, and even then have to do that a few times before it starts up normally. It seems to be happening more frequently. Any ideas on what I can do?
Thanks so much
Craig
Click to expand...
Click to collapse
Rolling back? Screenshot
?
RealityFails said:
Rolling back? Screenshot
?
Click to expand...
Click to collapse
It is more like rolling upwards, like an old tv that is not tuned to the channel properly (I am showing my age here because I still remember that)
I cannot take a screenshot because everything on the screen rolls, so cannot access the screenshot function or anything else for that matter.
I have found that when it happens I bend the phone backwards a little and it stops. This makes me think that perhaps the case may be slightly bent from a drop or from having it in my pocket which is somehow causing the problem.
It is not doing it now; I hope it won't return
csumm said:
It is more like rolling upwards, like an old tv that is not tuned to the channel properly (I am showing my age here because Is till remember that)
I cannot take a screenshot because everything on the screen rolls, so cannot access the screenshot function or anything else for that matter.
I have found that when it happens I bend the phone backwards a little and it stops. This makes me think that perhaps the case may be slightly bent from a drop or from having it in my pocket which is somehow causing the problem.
It is not doing it bow; I hope it won't return
Click to expand...
Click to collapse
From what you describe it sounds like your flex cable is causing the issue.
If that's the case, I could be wrong you can take it apart or return it to Sony. I'd just buy a new one. Sounds like a flex cable issue to me
A final development in the story of my phone. The rolling came back, got worse, and then I had times where I would push the power button to light up the screen out of power-saving screen off mode, and nothing would happen. The back-light would light up, but just a blank, black screen...
I sent it to the repair center and the quote came back. It would need a whole new screen.
The cost was going to be pretty high, so I looked online and bought a whole new phone for only 60 cents more than the repair quote!
I just hope my new phone lasts longer than the old one

Flashing/flickering/artifacting screen?

(UPDATE: Here is a link to a short video of my issue: https://youtu.be/YqKW3tU4Fhw)
So I cant seem to find ANY info relating to this issue aside from results for the LG G4, but the solutions for said phone are all over the place. Some are bad screen, some are related to sim tray, some are related to water damage and battery etc. So basically, about a month after buying this phone (KIW-L24 US version), the screen started to artifact and flash in and out randomly. There is nothing that seems to trigger it. I have set the phone down on a table while on the homescreen and watched the lightshow. It is basically a mixture of the problems seen in these videos (Feat. LG G4).
https://youtu.be/gAUkXLR7eQI And https://youtu.be/QstOH66pfiU.
Symptoms:
Screen will randomly start to flicker and fade in and out. I will also get crazy artifacting lines. (Think de-gaussing an old CRT monitor or simillar to what is seen in the second video)
If i see the problems happening, locking the phone and unlocking again will sometimes fix it temporarily. Other times the problem continues after i turn the screen back on.
Sometimes the screen will refuse to come back on. The backlight turns on, and the digitizer responds, but the screen is still black. Making sure the screen really is off, I can come back to the phone a few minutes later and it will turn on. Other times ill have to hard reset the phone (hold power button 10 sec) and it usually brings the screen back to life.
Background:
I bought the phone "used - Like New" from amazon. It came with all the original accessories and even still had the film protector on the back of the phone. I may have noticed these problems after I received the phone, but they really only started to show about a month after purchase.
At first I though it could be software related as I was running CM13 and something could have been corrupted, so i did not just a factory restore, but a full reflash. This didn't solve the issue. Restarting my phone and the reflash did help, but the problem returned. The inability to turn the screen on persists through a reset and I have to wait till the phone boots again to get the screen back. Sometimes takes more than one reboot. This pretty much confirms a hardware issue right? If i put the phone on a black screen, i can see three small fuzzy "dots" in a triangle shape in the top left quadrant. Could the screen have been damaged by whoever owned it before returning it? They are not dead pixels per se, but seems more like areas where the backlight is showing through ever so slightly more. Not visible unless you are on a black screen in a dark room. Ill upload a video showing some of the issues. Any help is appreciated!
im afraid you need a new display brodar...
Seems to be hardware issue. You can visit the nearest service center to get it fixed for few bucks if you don't have warranty.
Yeah that's what i figured, i just needed conformation. I was able to get amazon to take the return even though I was out of the return period. So at least ill be able to get a refund. Ill just pay the extra for a new one this time haha.
One question : Do u have over heat problem with ur phone ?? If u feel ur phone is more than work from the back dont replace . U'll damage the new screen also . Some ppl erported over heat cpu issue with honor ! ;.
KobaltPanther said:
(UPDATE: Here is a link to a short video of my issue:
)
So I cant seem to find ANY info relating to this issue aside from results for the LG G4, but the solutions for said phone are all over the place. Some are bad screen, some are related to sim tray, some are related to water damage and battery etc. So basically, about a month after buying this phone (KIW-L24 US version), the screen started to artifact and flash in and out randomly. There is nothing that seems to trigger it. I have set the phone down on a table while on the homescreen and watched the lightshow. It is basically a mixture of the problems seen in these videos (Feat. LG G4).
And
.
Symptoms:
Screen will randomly start to flicker and fade in and out. I will also get crazy artifacting lines. (Think de-gaussing an old CRT monitor or simillar to what is seen in the second video)
If i see the problems happening, locking the phone and unlocking again will sometimes fix it temporarily. Other times the problem continues after i turn the screen back on.
Sometimes the screen will refuse to come back on. The backlight turns on, and the digitizer responds, but the screen is still black. Making sure the screen really is off, I can come back to the phone a few minutes later and it will turn on. Other times ill have to hard reset the phone (hold power button 10 sec) and it usually brings the screen back to life.
Background:
I bought the phone "used - Like New" from amazon. It came with all the original accessories and even still had the film protector on the back of the phone. I may have noticed these problems after I received the phone, but they really only started to show about a month after purchase.
At first I though it could be software related as I was running CM13 and something could have been corrupted, so i did not just a factory restore, but a full reflash. This didn't solve the issue. Restarting my phone and the reflash did help, but the problem returned. The inability to turn the screen on persists through a reset and I have to wait till the phone boots again to get the screen back. Sometimes takes more than one reboot. This pretty much confirms a hardware issue right? If i put the phone on a black screen, i can see three small fuzzy "dots" in a triangle shape in the top left quadrant. Could the screen have been damaged by whoever owned it before returning it? They are not dead pixels per se, but seems more like areas where the backlight is showing through ever so slightly more. Not visible unless you are on a black screen in a dark room. Ill upload a video showing some of the issues. Any help is appreciated!
Click to expand...
Click to collapse
Try moving to stock once , if it fixed stick to it for few days . 99% of possible cases for hardware issue .
So better request for a replacement from huawei . but don't mention them that u bought it used . tell them u bought it new

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