Anyone else have this problem? - Galaxy Note GT-N7000 Q&A, Help & Troubleshooting

I notice this particularly when on white screens. But every few seconds the screen tints VERY slightly different colours. It's a very subtle change but basically every 3 seconds or so, the screen goes from having more of a blue tint, to more of a warm tint. I'm wondering if my phone is faulty or if it's some sort of optimisation in the software. I have the screen power optimisation turned off, and auto brightness turned off but it's still doing it. Again, it's only very subtle. Do you think this phone should be returned? It's running Cassies ROM v4. Bought it from Expansys in the UK (but it came from france). Really appreciate any advice on this as I need to decide if it needs to be returned.

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One pixel on when switched off

I have recently noticed that my screen seems to be always using about 40-50% of the battery even when the note is off for long periods of times. I have also noticed that I have 1 pixel that stays on red even when the note is off. I need to be in complete darkness to notice. I keep my screen on min brightness and I dont use the automatic adjustment, and it is in standard mode (not dynamic).
My question: is this pixel keeping the rest of my screen on? is this likely to be a hardware problem? Is it covered by the warantee? any ideas or is anyone having similar problems with excessive screen battery use?
It seems unlikely that that red pixel would keep the rest of your screen on. Your battery problem is most likely due to a rogue app.
To troubleshoot that pixel, get an app called dead pixel detect from the play store. It flashes different colors on your screen so you know if the errant pixel stays red, or changes. I'd also recommend that you reboot the phone and check again, to make sure it's not a software thing. If that pixel is actually a dead pixel, then yes, you can avail the benefits of warranty. The service center person will most likely try to talk you out of it, though.
same here, the pixel stays on for 30 seconds even if i lock the screen.. i can advice an LCD test: type *#0*# tap "green" or "Receiver (White)" and look if you have one pixel black (look very close to screen), if yes you have a dead pixel like mine

Green vertical line when switching off the display

Hello everybody, I have the following "visual effect". It happens roughly 50% of the times the display switches off. It doesn't matter if it is by it self, by the power button or by a software button. In the very moment when the display switches off, a greenish dot in the center of the display flicks for a split second, along with a same color vertical line trough the whole screen. Obviously it is not supposed to be this way Beside this issue, there is no other problems with the display or the phone( for now). What do you think about this? Thanks in advance
Sounds like a screen off CRT effect, check you tube to see if that is your problem
Isn't the CRT effect a horizontal white line ending up in a dot?
I genuinely think the OP's screen may be defective...
Sent from my GT-N7000 using xda app-developers app
do a lcd test and check if all pixels are working ok
Unfortunately it is not a CRT effect, although it looks a bit like it. The difference is, that the line and the dot( little spot) appear simultaneously for a fraction of a second. In a daylight it is hard to see it, even more it happens just 50% of the times, but not every other time. Its somewhat random.
The *#0*# test do not show much. No dead pixels. On blue you cant see anything, on green and red I think I see a little bit darker spot in the center of the screen( where the dot/spot appears), but there are such darker sports and elsewhere on the screen.
BTW, I noticed recently, that when the screens dims a bit shortly before switching off, this dimming happens not so smooth. How should I say it... it happens on a several steps, although the whole thing is done in less then a second, it is not so fluid. Is it supposed to be this way?
Thanks for your help guys
have u tried flashing a different rom stock
I am on the latest German stock 4.0.4, tried several others, including 2.3.6. .Currently with Hydra kernel. No difference whatsoever. I think the auto-brightness doesnt work so good. When set on fixed value it dims more fluidly.
if u on stock rom and not rooted then take it to a service center

Red Tint Issue Solution

After lots of research, I finally found a solution, but its temporary.
Download & Install ScreenDimmer (Dims Notification Too) By Etsang From Play Store.
Keep the auto brightness off, and device brightness @100% (Or Above 50%), install app, give permissions and change brightness from app according to your usage, thats it.
I think red tint is a software bug, not a hardware, because at last the motive is to decrease the brightness (dim the display) without red tint. App is also doing the same. The only difference is it has no red tint.
This works but if advise against using it. It records your inputs.
More to your point of it being a software bug, I agree. I wats always under the impression that they could fix it by adding blue in software based on the light sensor input. I noticed that if you put your phone in grey scale (in notification tray) that the grey for the icons in the tray that are toggled on, are actually grey while the other have a red tint. Normally the toggled on icons are blue when not in grey scale. The fact that it can show grey properly under these conditions as well as the one you described shows software could address the issue.
Sent from my ASUS_I001DC using Tapatalk
Oh wow it works but im gonna wait for asus to fix it.
Yeah, actually the brightness mechanism of oleds and LCDs is different, lcds just have a backlight led that would get brighter or dimmer pretty straightforward, but OLED's case is different, getting brighter or dimmer means showing different frequencies of the same color so our eyes can see that color brighter or dimmer, thats why when you turn the brightness of an oled panel down you still dont feel the way you do with a lcd
Long story short, this tint issue is most probably caused by wrong calibration of different brightness levels but still, i would take my hopes up with asus...they dont have a good history of customer support at least in their mobile phones section
Btw, thanks for the app and thumbs up
happy to hear this is a software issue. I am sure Asus will fix this with an update.
I knew this was a software bug long time ago. Since I noticed even night mode did same problem too. That's who I found out this is software defently.

GALAXY A30 Screen brightness problem

Hi everyone, I bought a Galaxy A30 a few months ago, and I have noticed after playing Call of Duty that when playing the screen lowers automatically its bright from one moment to another. At first I tought it was some game related bug, because when lowering the notificacions panel the screen bright still marks the top level. After a few days I noticed this started to happen in another apps like instagram, suddenly the screen lowers like 30% of it brightness and I try to move the brightness bar to a lower level and go back to full to see it it goes back to normal, but even with the bar at full it stays like that, darker, with a very clear difference from the full bright of five minutes ago. I know there is an option for auto brightening wich was always disabled, and if it was caused by that option, the brightness bar should also lower and not staying at the top as it does now.
The thing is that whenever this happen, I get used slowly to the new amount of bright and cannot tell if it goes back to normal or WHEN it goes back to normal. If it does, its pretty gradually because I dont notice it. There seem to be nothing in common between the cases, this doesn't happen when charging or something like that, happens anytime..
Does anyone knows what can be causing this?

Screen Black and White.

I bought a screen of eBay which said it was OEM but who knows? Anyway I had the screen installed at a phone repair shop and it seemed to work fine until I walked out of the store and turned it on to notice that the screen was black and white. I turned it on and off again and it went back to normal but i went in to tell them anyway when i was walking in I turned the screen in and off a couple times to see if I could get it to go black and white again and sure enough if did. It seems to turn black and white every couple times I turn it on and off. It doesn't flicker back and forth and it doesn't charge when I'm using the phone also i had a custom ROM installed so I got rid of that to see if it would fix it it didn't and I reset the entire device to no avail but I did notice that to this point I haven't had it go black and white while in the boot-loader and i have tried a lot turning it on and off again and again. I also noticed that there are lines bouncing in the background when the screen is black and white which are also visible when the screen is normal but only barely. Apart from that the screen seems to shake when its in black and white and sometimes the touch wont work for a couple seconds its not a big deal because you can just turn the screen on and off to fix it but its a very strange problem i have contacted the seller and I talked to the man who installed it but I was wondering if it was possible that it was some kind of software issue it seems unlikely but the fact that it doesn't flicker on and off its just either on or off and the fact that i cant seem to get it to happen in the boot-loader is making me wonder I also tried recording my screen and the screen was recorded normally when it was black and white to me.

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