Screen flickering problem - Xiaomi Mi 8 Questions & Answers

Hi guys, suddenly i'm having this problem with my phone i'll let you the link to the video so you can see what i'm talking about- This is happenig just with the screen off when i missd the fingerprint or when i shut the phone off. I alrady tried other roms (i'm at xiaomi.eu stable) and flash it with miflash to global stable. The problem is always gone for a while after flashing but hours later even a day later it happend again and then never goes. It has to be hardware problem but i don't knoiw what could be, i don't want to replace de screen until i'm sure because once ii's unlocked with the screen on and i'm using it never shows a problem. I hope you can help me
https://www.youtube.com/watch?v=wlXsw-LbKSk

Dang it. I'm experiencing the same issue for the past few days with my Global ver. Mi8.
Any solutions?

Any chance you installed "Dark Mod" or a similar MIUI Theme ?

It's probably a theme problem, had a similar bug when I installed a dark theme. Try restarting your device and then apply the default theme.

Just when I was about to go to the service centre, my phone becomes normal. How about you guys?

Have you try different rom?

Try to install custom kernel to resolve your screen flickering.
Sent from my MI 8 using Tapatalk

I have a similar problem. The screen, sometimes, when i try to turn it on, flashes and turn off again. When trying again it works.

Gustavo Sz said:
I have a similar problem. The screen, sometimes, when i try to turn it on, flashes and turn off again. When trying again it works.
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This is exactly my problem, too. Did you solve it yet? I'm on newest global stable, no root and default theme.

Turn off auto brightness and turn upp brightness until it stop flickering.

You can try the app oled saver.
If the issue persists irregardless of brightness settings it's obviously a theme issue

sdujolo said:
Turn off auto brightness and turn upp brightness until it stop flickering.
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im on screen flickering problem when phone going to sleep/lock
with your guide the flicker gone
thanks

The problem persists even though with oled saver installed. Is it software or hardware problem?

Hi
Can you try this
Go to Settings >> More Tab >> About device.
Find "Build number" and click 6 times fast on it.
You will then get the message saying: "You are now a developer"
Come back to Home Screen, and then go back to Settings >> More Tab >> Now you will see the "Developer Options"
Now go to Developer options >> Drawing Section or Rendering Section >> Find "Turn off hardware overlays" or "disable hardware overlays" >> This will force the phone to always use GPU for screen compositing

Alittleant said:
The problem persists even though with oled saver installed. Is it software or hardware problem?
Click to expand...
Click to collapse
Did you install any custom miui theme?

My girlfriend had the same issue on her Mi 8, and it became so bad that the phone would just flicker and not show anything on the screen, even after restoring factory settings. She brought it to a Xiaomi service center, and after two weeks she got it back with no issues, the receipt they gave her mentioned a firmware update. Unfortunately, the phone came with an older MIUI version, and when it automatically updated to version 10.2.2 the flickering screen came back. We updated to 10.2.3 but the problem it still there. At least now the phone can be unlocked and used normally.

try this one
my mi 8 happened to have the same problem. it flickers every time I unlock and shut down my phone. I was about to repair it, but suddenly the flickers have gone. all I did was turn up the brightness somewhere around 50-70%. hope it helps!

dears, I have a worse variant of this problem: in my case, when the phone does not recognize the fingerprint. the screen blinks and then the phone turn off.
Have someone noticed that?

Here is the problem that i'm facing. Qlmost every time i plug my phone to the charger the screen start flickering, it even continue to flicker when i unplug it. Any advice?
https://youtu.be/cuDBX4mj7VY

shin06 said:
Can you try this
Go to Settings >> More Tab >> About device.
Find "Build number" and click 6 times fast on it.
You will then get the message saying: "You are now a developer"
Come back to Home Screen, and then go back to Settings >> More Tab >> Now you will see the "Developer Options"
Now go to Developer options >> Drawing Section or Rendering Section >> Find "Turn off hardware overlays" or "disable hardware overlays" >> This will force the phone to always use GPU for screen compositing
Click to expand...
Click to collapse
Was this help screen flickering? Please advise..

Related

Screen stays black when i answer calls

hi, i'm having a issue with the proximity sensor. Sometimes when i answer calls, the screen stays black even if i press the lock button, sometimes i can't even answer because i can't turn on the screen. Once it had the problem, if i open an app to test the proxymity sensor it tells me that the screen in always covered. If i reboot the phone everything goes back to normal, until the next time it decides to malfunction. I don't use any screen protector and i had this problem with resurrection remix rom and CM 13 snapshot... Anybody had the same issue? Or knows how to fix it? the thing that is driving me insane is that it does this only sometimes, at random...
There's a fix to this. Go to accessibility settings and tick power button to end call. Then reboot. And then untick it. Itll be solved after it. Had the same in my nexus 6 too.
akholicc said:
There's a fix to this. Go to accessibility settings and tick power button to end call. Then reboot. And then untick it. Itll be solved after it. Had the same in my nexus 6 too.
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Click to collapse
I tried and it seemed to work at first, but today the issue was back...
mirko902 said:
I tried and it seemed to work at first, but today the issue was back...
Click to expand...
Click to collapse
I had same problem on my phone. I discovered Proximity Sensor Reset through another XDA post which fixed the problem for me. Google Play Store, it is simple and has remained effective through reboots and ROM updates. Maybe it will resolve for you and others too.
Sent from my Nexus 6 using XDA-Developers mobile app

Screen freeze, blue box keeps scrolling

Hello everyone, I have experienced this problem quite afew times already. All of the sudden, I would not be able to use the touch screen, and the blue box would appear and keep scrolling to different parts of the screen. I've attached the pictures below. Restarting the phone doesn't solve the problem. I'm not sure how it got back to normal again. Any clues on what is this problem?
I have heard that themes cause some sort of problems, are you using one?
Have you tinkered around with anything in the Development Settings? There is a setting that I'm sure shows you the areas that are being refreshed.
winol said:
I have heard that themes cause some sort of problems, are you using one?
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Click to collapse
Hello, I'm using a theme currently. Using High_contrast_theme_II. I'll change the theme and see how it goes!
Thanks for your input!
English_Gentleman said:
Have you tinkered around with anything in the Development Settings? There is a setting that I'm sure shows you the areas that are being refreshed.
Click to expand...
Click to collapse
That's the funny thing, I didn't tinker in any settings. It just randomly appears and randomly goes away.
Hi,
@xgsh, it looks like Voice Assistant? https://youtu.be/T-QgE4bT0c0?t=91
Take a look in Settings-> Accessibility-> Vision-> Voice Assistant and see if it's enabled, maybe in the other Voice Assistant settings.
Manson79 said:
Hi,
@xgsh, it looks like Voice Assistant? https://youtu.be/T-QgE4bT0c0?t=91
Take a look in Settings-> Accessibility-> Vision-> Voice Assistant and see if it's enabled, maybe in the other Voice Assistant settings.
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Click to collapse
Hello, I think it is something similar. But for my case I am not able to touch anything on the screen at all. It is like a screen freeze, And that blue box keeps scrolling.
Hello everyone, I have found out the issue already. It is under Accessibility > Direct Access. Apparently it is on. So if you have it on, pressing the Vol Up + Power button at the same time causes the issue above to happen.
xgsh said:
Hello everyone, I have found out the issue already. It is under Accessibility > Direct Access. Apparently it is on. So if you have it on, pressing the Vol Up + Power button at the same time causes the issue above to happen.
Click to expand...
Click to collapse
Just for anyone coming in here looking to solve this as well: it might be the above issue, but also you may have Universal Switch turned on. Reboot your device, press the Home button three times (that should temporarily disable that pesky blue box preventing you from clicking stuff, and then go to Settings > Accessibility >> Dexterity and Interaction >Universal switch and disable it. You're good to go again.

screen getting on by itself

I purchased new A71, it's screen gets on by itself after every one or 2 minute. I checked simply whatever possible. Any ideas?
Never had this issue but did you try tweaking AOD settings?
DonAndress said:
Never had this issue but did you try tweaking AOD settings?
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Click to collapse
Already,,, no use.
Now safe mode tried and no screen wakeup.
It means some third party app issue.
I'm trying to figure out which app exactly.
I had this with my wife's phone.... Screen literally cam on everytime the phone was moved.... She has a flip case, which i assumed was the culprit, and i could see the screen pop on even if she moved the phone to one side a little...
I found the answer to our solution in the settings somewhere under advanced features/motion and gestures.... Untick all that lift to wake crap!
Screen stays off now until you press power button or double tap screen...
wastedagen said:
I had this with my wife's phone.... Screen literally cam on everytime the phone was moved.... She has a flip case, which i assumed was the culprit, and i could see the screen pop on even if she moved the phone to one side a little...
I found the answer to our solution in the settings somewhere under advanced features/motion and gestures.... Untick all that lift to wake crap!
Screen stays off now until you press power button or double tap screen...
Click to expand...
Click to collapse
I tried the same already but problem was still there.
Since once I reboot into safe mode, there w no issue. then started apps one by one in normal mode,,,, now not facing issue. I suspect one or two third party apps. Still not finalised which app exactly as these apps got updated meanwhile.
Any way thanks,,,,
my issue already resolved.

screen brightness problem

Hi all, my p30 pro, when the screen is woken up in the bright sun, it goes to max brightness. However after about 30 seconds the screen dials back the brightness to about 75%, and even if it manually move it back to 100%, the screen doesn't get any brighter. I have tried all the setting regarding the display, manual, auto, vivid etc. I have factory reset the phone as well. Any thoughts or ideas please?
nemesis_rb said:
Hi all, my p30 pro, when the screen is woken up in the bright sun, it goes to max brightness. However after about 30 seconds the screen dials back the brightness to about 75%, and even if it manually move it back to 100%, the screen doesn't get any brighter. I have tried all the setting regarding the display, manual, auto, vivid etc. I have factory reset the phone as well. Any thoughts or ideas please?
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Click to collapse
Hi.I am facing the same problem.Did you manage to fix it?
egres said:
Hi.I am facing the same problem.Did you manage to fix it?
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Unfortunately no, I am still using it. But it is almost unusable under sunlight. Was hoping a software update fixed it, but no luck.
I forgot to ask what software version are you on and when the problems started.I have a mic problem too and I already changed the mic but although it's a bit better it's still not usable as before.
I am on emui 12. Can't remember when it started.
any solutions? on the newest version of the software my display doen not adjust automatically to the light outside. I do not even have this option. When I try to restore to the previous version by the hi suite I get a message that I have a problem with my Internet. I dont know if it worked on the previous one . I got it and installed the newest version. Any ideas?

Question Moto display waking up too often

Hello, i found that the moto display shows up too often. For example, my phone is laying on the table playing a song from spotify with the screen turned off. If the volume is quite high it happens that the vibrations from the phone speakers are strong enough to activate the moto display. It's annoying and batter draining i guess... Any solution? Thanks
Yes, I experienced the same. Pick up to wake is too sensitive, so with just a minimal vibration the screen turns on. I switched this option of and only have the option 'tap to wake' activated.
Turn off moving the phone
Bofahad said:
Turn off moving the phone
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I have different options than yours I guess. I have only the option "wake up lifting up the phone". And i have it deactivated already..
market88 said:
I have different options than yours I guess. I have only the option "wake up lifting up the phone". And i have it deactivated already..
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Are you in cn or Global ?
This is the build S3SQ32.16-53-9
Am in S3SQ32.16-72-12
Can you show me how to get to that options step by step. However over the night my phone updated to 72.14
market88 said:
Can you show me how to get to that options step by step. However over the night my phone updated to 72.14
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Click to collapse
Setting -> Gesture shortcuts -> Wake Display
Thanks, unluckily i don't have that menu i guess
market88 said:
Thanks, unluckily i don't have that menu i guess
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You welcome may be it doesn't exist in Global rom .
I have the global and could change, THX
Did you manage to change it? Can you show me how step by step? Thanks

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