hey guys
for a long time i am having this issue with my screen.
it flickers sometimes, no pattern of times. but it does flickers almost all the time when i put it on automatic backlight, or if i set the brightness to lowest level, or 1-2 level more than lowest.
at first i thought the battery may be going bad, because i did have battery issues. but now that i have bought a new battery, it still happens.
i read that it might occur because of the s-view covers. but i have s-view covers for almost a year, and it only happens for about 3-4 months.
though i did buy a new s-view cover on august. could this be related? i think i did have flickering problems even earlier than august.
either way, i had removed the s-view cover from my phone, it does seem to flicker less. and weird thing, sometimes it just enters the s-view mode where all screen goes black except the window part... maybe the phone misses the cover
any way. what could be the problem? how can i solve it? maybe i should format the phone and install another rom? i have the latest Omega rom version right now.
thanks everybody.
anybody help?
no one?
I think I've found the best solution out there for most annoying screen flickering issues... Done a substential amount of digging and finally discovered the app "Twillight" works like a charm by enabling backlight control...Just try it out with similar issues and post your review and thank me...Cheers...
So My S5 worked great for 2 months or so but then the screen started flickering at very low brightness. As time passed the flickers increased and now whenever the brightness goes below half, the screen shows yellow flickers. That's not even the biggest problem, when i lock my phone and then press the lock/home button to turn on the screen, it shows a flash on the screen and goes dark again. This takes around 15-20 tries everytime almost (sometimes even A LOT more) to turn back on.
There was no water or fall damage.
I've tried factory/hard resetting, disabling hardware acceleration, disabling google chrome (worked for some people on the internet) still not solved.
I don't have warranty, and i'm willing to pay for some repairs but can someone help me out here and tell me where exactly is the problem? Cause i really don't want to pay for a new LCD. It's kinda costly. Thank You
ApexPredator01 said:
So My S5
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I have the exact same problem but only at the bottom of the screen...I am sure is not a software problem because I tried everything (from reinstaling soft with odin from4.4 to 5, with kies, to CM12/13). If you find which is the hardware please let me know.
Thank you. I also don't have warranty and i got this flicker from November.
oia12344321 said:
I have the exact same problem but only at the bottom of the screen...I am sure is not a software problem because I tried everything (from reinstaling soft with odin from4.4 to 5, with kies, to CM12/13). If you find which is the hardware please let me know.
Thank you. I also don't have warranty and i got this flicker from November.
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I also have this problem. I did bring my S5 for repair under warranty (but have knox tripped) and they REFUSED to repair it,because they think the problem is caused by ME. I did go to a lawyer, and I am gonna sue them. Will update you if I have new info. I am sure it is NOT a Software problem caused by the user,I also tried changing OS,reinstalling Stock,nothing solved my problem.
any update dear as i have the same problem but for me it happened when there was low light means in darkness so when i un tick the auto brightness it will be okay no more flickering issue
Same here. Flickers, stays black. Tho I can fiddle around and it will pick up touches, and have gotten it to reboot.
It will work fine charging. Batt icon works. It only seems to be an issue while its running.
Happens on stock and cyanogen 14.
I have noticed it seems to happen more when cold.
Same problem here on cyanogen 13.0, tried factory reset to no avail. I'm about to try flashing another ROM, just need to figure ou what.
Just done wiping and reinstalling new ROM, bumped up to 7.1 and the problem is still the same.
- Screen has difficulty turning and flickers when the brightness setting is low.
I guess it must be a hardware issue.
My fix for the moment is to disable automatic brightness and never set the brightness too low, so as to avoid have trouble turning on the screen.
Same here. It's a typical problem.
Same...
Sent from my SM-A520F using Tapatalk
I have a feeling that the problem is caused by overheating when charging. I fell asleep and woke up with the phone underneath me, it was blazing hot. It has been doing what the rest of you describe since then.
I am not 100% sure, but I've heard that it's due to the low voltage (brightness) being applied to the screen which is causing the flickering. Unsure why it's only the bottom half (Also happens on mine).
A work around for this is to install a screen-dimmer such as Darker, set the brightness on your phone to be above the flickering amount, then use Darker (or whatever app you use) to lower the brightness down.
Because Darker (or whatever app you use), is a filter, it won't change the voltage, thus no flickering.
do any of you have the always on feature enabled on the screen?
This problem is soooooooo often. Internet full of it.
Is AMOLED designed only to work for 2 years???
Anyone any information about that?
try downgrade firmware back to Android 4.0
Edit: nevermind, this didn't work
Perhaps AMOLED life time is short.
I will buy a LCD display next.
Same here only below the screen. It happened last month
BarrettBear said:
I am not 100% sure, but I've heard that it's due to the low voltage (brightness) being applied to the screen which is causing the flickering. Unsure why it's only the bottom half (Also happens on mine).
A work around for this is to install a screen-dimmer such as Darker, set the brightness on your phone to be above the flickering amount, then use Darker (or whatever app you use) to lower the brightness down.
Because Darker (or whatever app you use), is a filter, it won't change the voltage, thus no flickering.
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How can we up to low brightness voltage? Is this possible?
It happens only at low temperatures. When you make your phone warmer, the flickering at low brightness stops.
Has anyone tried to check if some kind of cleaning the flex connector helps? I'm thinking about buying LCD sticker and give it a try.
I have the exact same problem and its related to temperature, I never face this problem in the summer.
ApexPredator01 said:
This takes around 15-20 tries everytime almost (sometimes even A LOT more) to turn back on.
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Maybe your power button is broken?
So I posted a while back for this issue and have finally found the name of the problem, I couldn't describe it better previously. I have got a burn in issue or maybe ghosting on my S6 edge plus. It seems to be of the download mode screen and I have researched about it. I have tried apps like "Screen burn-in tool" it seems to improve a little but it will decrease the life expectancy of screen by burning all the pixels even so don't want to go down that road.
I read somewhere that putting an inverted image of the screen that caused the burn in could solve the problem but wouldn't that also be burning all the pixels evenly?
Help me out with this by suggestion which solution should I try and what worked for you if you ever had a burn-in problem. AMOLED isn't so great after all I guess.
Had the same problem, wait some days and its gone!
Hello,
So my S7 edge got a replacement display due to being broken like 2 months ago. Today purple smudges started to appear, when I used the device for quite some time heavily and it got quite hot. They disappear when I change display mode or when brightness changes. But sometimes reappear. Is this a defective Display, should I get it replaced via warranty again?
Mine does the same thing, but it has never been repaired or suffered any kind of serious damage. It's not that annoying either.
Could it be some kind of factory defect?
When googling I found it clearly is a hardware display fault. As I had my display swapped by a third party mobile repair shop, they would be the ones to make accountable.
It only occurs at certain brightness settings, and not in all apps/states of display - mostly in those which are really bright like chrome browser without tab open, or dict.cc dictionary app.
I'll keep an eye on the issue and just demand warranty, as this display isn't even 2 months old now. They give 6 months of warranty on exchanged parts. So if it does not go away, I'll just get it replaced again.
It just occured today out of the blue, after flashing custom rom / flashing some stuff and constantly playing on the phone, and it became a bit hot.
It occurred exactly the same to me, after flashing a custom Rom. Now I can't remember which one, but it changed the screen's aspect ratio to simulate the S8's.
After that I flashed stock and the problem kept happening
But I don't think this can be caused by a custom rom... it's a hardware fault.
I hope so because I really wanna install a custom rom ;(
Google the issue - it happened a lot apparently and there is literally no connection to custom Roms - it's a defective Display. I did not have the issue anymore BTW.
I have to get back at this again. I recognized that I can Only see these smudges under certain conditions. I can not see them when I am inside. Only outside, and Only from specific angles - also dependant on screen brightness. When I cover the screen with my hand they disappear.
At first I thought it could also be some fault with the transparent protection skin I also applied one day before first noticing this purple screen problems. But the thing is - they move when scrolling, Only in a small portion of the screen but they go up and down.
The fact I can Only see them in daylight makes me wonder if it's got anything to do with the surrounding brightness sensor that does the automatic brightness and display mode for you.
I find it very strange that I can not provoke the issue indoors, also not if I set up brightness to max.
Hi people,
Im sure most are aware of the flicker in j7 2015 model. I have both j7 2015 and j7 2016.
It was last year when j7 2015 got marshmallow update. Within few hours, the backlit went crazy. It was impossible to dim the screen without seeing all disco pink lines.
There were claims that it was fixed but i still have this issue. Samsung service centre said no display available and warranty period got over this way.
Now just a few minutes earlier, i faced the same isssue in my j7 2016 model. The screen became dim all of a sudden. On closer inspection i found every alternate pixel line was missing vertically. It tried to turn off and on the screen a few times. Then the issue became severe and i was seeing all pink screen. I could barely see the text on the screen.
I had ampere installed and saw that the phone was using over 970 ma of current. So i switched it off and tried after 5 minutes and nothing changed. Twrp, offline charging and holding power button with battery out didnt work either.
I kept on increasing and decreasing the brightness to max and min. Some times the flicker stopped briefly and i could see perfectly. After about 30 minutes of struggling the screen became normal automatically.
I started typing this story when the screen got back normal and it hasn't done wierd flicker till now.
If you face any issue like this, please share over here.
Im also sharing this with samsung so they may or may not try to investigate. They are leading manufacturer of oled display and although the display is fine, im sure their driver circuit have some flaw.
Screenshots , the white one is for low brightness. It goes reddish when brightness is high
I managed to fix the screen by replacing the capacitor array used in the screen.
I did some research and found the 20khz PWM singal used for the screen was out of sync. There is a clock pulse that is controlled by small capacitors to keep it a square wave instead of sinusoidal.
Wont talk more about what and how that works, its there on the internet, just google pwm brightness control circuit.
The capacitor used are either cheap or not within specification or maybe even completely of wrong values.
PS. I know how to handle hardware and soldering, make sure you know what you are against.
Before and after screens. Although i got some scratches on the touch panel, i saved a few bucks in my wallet
Used root dim tool along with team viewer to handle this.
Since i dont have a technical specification for this circuit, ill be doing some more research to fix it properly.
Wow!!!
Sent from my SM-J700F using Tapatalk
dodo2244 said:
Wow!!!
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I need some help with this. I need a broken lcd from j7 2016 model to grab the capacitors. If anyone could help me, that would be great