I have an S20 5g about 1 yr old but with little use and no visible damage. A vertica pinkish line down the exact center of the screen from top to bottom appered suddenly and is visible in all a screens, even if phone is off and charging. Is this a broken screen, another hardware problem, or is it caused by a software glitch. The phone works perfectly, including all apps.
Sounds like a failed display. The variable refresh rate displays are notorious for all manner of failures. It could be a mobo failure but more likely it's the display.
You can try clearing the system cache from the boot menu as well as a hard reboot.
If it happens in safe mode then it's almost certainly a hardware failure.
Related
Just got my hands on the Epic Touch 4g about two hours ago, and in playing with it I notice the apparent brightness/contrast of the screen changes slightly based on the content currently being displayed.
This is most apparent when scrolling through the home screens-- on the default screen the bottom icons are nice and bright-- but when panning over to the empty calendar (which I'm guessing is supposed to be white, i'm guessing, but looks more grey than anything) the icons at the bottom are dimmer and less contrast-y (yes, I know that's not really a word).
I noticed in the Display settings you can adjust the "Screen Mode"-- but it exhibited this behavior no matter when setting I chose (Dynamic, Standard, and Movie).
The effect almost reminds me of lower end flat Plasma TVs with cheap circuitry that can't handle certain currents when an all-white (or mostly white) screen is being displayed-- it limits the current, so the end result is a light grey screen instead of a bright white display.
Is this considered one of the features of the phone (perhaps to save batter life or screen life)? Anyone else notice similar behavior? Don't want to freak out if this is normal, but at the same time it's a little disconcerting to see something whose major claim to fame is it's "brilliant display" exhibit such behavior.
Go back to the display options, scroll down to "auto adjust screen power" and turn that off and see if that helps...
That was exactly it... thanks.
Nice to know this is a software feature and not something glitchy with the hardware.
OneX EU Version vertical dark line on the middle of screen.
For me, I think it is related to LCD signal quality, maybe panel problem or screen cable problem. Anyway, it should be a HW problem.
The dark line is about 1 or 2 lines. It is okay with white screen, but has problem with light blue, yellow, green and light red pictures. It is not a constant problem. I can get the line removed by changing color with flashlight app. Sometimes, the dark is disappeared when you change screen colors in the app. Then it will come again at sometime.
Reboot, no help.
Anyone encountered such problem?
does sound like hardware, can you take a picture?
Attached pictures, you can see the line on blue screen and yellow screen. But nothing with white screen.
you could try safe mode (i think you have to hold volume down when restarting the device, until you feel it vibrate a few times), and then a factory reset if safe mode doesn't help, if it still persists, i'd go for replacement/repair
does look like hardware, although strange it doesn't show on white screen, but then again a dead pixel wouldn't show on a black screen, so can't rule out hardware
Many thanks for your advice. Since there is no such issue reported on the net, I just shared findings here. Maybe I will try factory reset later when I get backup ready.
lawrence750 said:
you could try safe mode (i think you have to hold volume down when restarting the device, until you feel it vibrate a few times), and then a factory reset if safe mode doesn't help, if it still persists, i'd go for replacement/repair
does look like hardware, although strange it doesn't show on white screen, but then again a dead pixel wouldn't show on a black screen, so can't rule out hardware
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Have tried factory reset, no help.
I also can see this issue even on boot screen. So it is related to HW. But also I can make it fix sometimes with some screen fake out conditions. (by "color flashlight" tool).
Hi
jiazhen said:
Have tried factory reset, no help.
I also can see this issue even on boot screen. So it is related to HW. But also I can make it fix sometimes with some screen fake out conditions. (by "color flashlight" tool).
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Click to collapse
It is faulty, simple as that unfortunately.
Regards
Phil
Yesterday my phone fell from 6 feet. Since then, it's deadly slow.
All CPUs seem to be fine, they are in performance mode, at the right frequency. Temperature is good (below 34°). LCD is intact. Touch layer works perfectly. Absolutely works correctly, but very slowly.
Display refreshes about once per second. With some apps, it slickers.
I can perform Skype video calls with both cameras. But Camera application makes the phone freese.
Some chat apps make screen flicker (blink). If only chat history is shown, the whole screen flickers. If virtual keyboard, only the chat history flickers, and keyboards remains still.
When I type anytthing, letters come on screen very slowly. VERY SLOWLY. After typing 2 lines, I have to wait 10 to 15s for all letters to appear. If I type more than 2 lines of text, some words are dropped (sounds like a 32 bytes buffer).
A few months ago, it did exactly the same (as described above); and then things worked fine again after 3 days.
Today, there is one tiny difference: if I turn screen off (via power button, lock app, or screen timeout), then, pressing power does not wake backlight. Only reboot can give me my screen again. But, apart from backlight, the phone keeps working fine: I can get incoming calls, and redial last phone number using BT earsert, or have video chat.
I presently have that last issue on my HTC Sensation, with yet an other difference: if phone (Sensation) is hot, even a reboot will keep screen off. I have to let my Sensation off for at least half an hour to be able to get screen work nomally. With the M8, any reboot gives me my screen back, immediately, even if phone is hot.
The way my M8 is slow makes me feel like it's missing video acceleration. But since this GPU is SOC, maybe it's an issue on the I2C bus between GPU and LCD ? I have removed and reinserted all ribbons; did not help.
If it was a software overload (what most google answers propose as reason for a slow phone), it would not had fixed itself last time. And it would not happen all of a sudden after a shock.
https://forums.androidcentral.com/htc-one-m7/334823-htc-one-fell-3-ft-became-slow.html
https://forum.xda-developers.com/galaxy-nexus/help/dropping-phone-make-slower-t1444607
I have open the phone, dismounted most parts, disconnected all ribons, removed the two main PCB, and remounted it all ... twice, and now phone works almost perfectly. I have a bad contact in the top speaker; it has always been a known weak point of this phone; the connection is bad, and speakers are poor quality; so, sound is a bit low volume, and distorted when I use the device in hand (headset) mode; and sound is poor quality on this side when viewing a movie in landscape mode; I shall change this speaker again later (changed it already 3 times).
But regarding the bug of the day, after complete disassembly and reassembly of device, it works fine.
Hi everyone.
I have recently had my screen replaced. After playing around, i quickly noticed that my keyboard screws up when i start typing.
The faster i type, the worse the problem is.
I checked touch response times and achieves normal times of about 60ms, however, i turned on touch overlay in developer settings and noticed that if i touch opposite sides of the screen quickly (to simulate typing), it would draw lines between the touches as if i was dragging between the two points.
This is what causes my keyboard to do funky stuff and heavily lag when typing fast.
Please note that this never happened before the screen replacement, and a hard reset didnt fix the problem.
Is there any software fix for this, or do i need another screen?
thanks.
nic_coe said:
Hi everyone.
I have recently had my screen replaced. After playing around, i quickly noticed that my keyboard screws up when i start typing.
The faster i type, the worse the problem is.
I checked touch response times and achieves normal times of about 60ms, however, i turned on touch overlay in developer settings and noticed that if i touch opposite sides of the screen quickly (to simulate typing), it would draw lines between the touches as if i was dragging between the two points.
This is what causes my keyboard to do funky stuff and heavily lag when typing fast.
Please note that this never happened before the screen replacement, and a hard reset didnt fix the problem.
Is there any software fix for this, or do i need another screen?
thanks.
Click to expand...
Click to collapse
I mainly work on iPhones, but it sounds like your digitizer is out of calibration. Don't know if there's a software fix for it, but hopefully this will point you in the right direction. Also I'd take it back to the place you had it repaired and see if they can fix if it's still warrantied.
Hi!
I have received my Red Magic 8 Pro and immediately noticed something. The selfie camera is visible if the background behind it is simple. For example just a simple white or gray background. Depending on movie sometimes it also becomes visible under cartoons like Rick and Morty, however during normal movie I cant see it.
Is this normal for this phone?
Also, the software which handles the pixels in front of the camera sometimes can become bugged and a visible line is displayed. I can reproduce this issue by pulling down the notification bar and holding it at 1 spot.
Does everyone experience these issues ?
That's normal, especially if the screen is on 120Hz, and at low brightness. It's the so-called green tint issue.