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Display discoloration with flickering

(Topic created: 04-09-2020 07:38 AM)
WTC
Cosmic Ray
Options
Galaxy S20

On my Galaxy S20 Ultra I believe ever since the March security patch my screen resolution drops with faded color on the display so when I restart the phone it turns normal but very shortly the issue happens. When I use the drop down to Power options it flickers really bad so I did the screen recording to capture the flickering but when viewing on the video it doesn't flicker. Does anyone else having same issues? I heard this became an issue for Note 9 users and there's no fix for it yet.

1 Solution


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Solution
SamsungLarry
Community Manager
Community Manager
Options
Galaxy S20

I believe testing your device in safe mode will give you the fix for this. Also, try clearing the cache partition.

 

The system cache partition stores temporary system data. It's supposed to allow the system to access apps more quickly and efficiently, but sometimes things get cluttered and outdated, so a periodic cache clearing can help make the system run more smoothly. 
Follow these steps: 
- Turn off the device.
- Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
- When the Android logo displays, release all three keys.
- An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
- Press the Volume down key several times to highlight wipe cache partition.
- Press Power key to select.
- Press the Volume down key to highlight yes, them and press the Power key to select.
- When the wipe cache partition is complete, Reboot system now is highlighted.
- Press the Power key to restart the device.
Your phone will take a little time booting up after the cache partition is wiped off of its contents as it will rebuild or recreate those caches. Don’t be alarmed if the phone gets stuck on the logo for a minute or two after this just don’t turn it off so that what was deleted will be replaced successfully. So, wait for your phone to become active. Don’t worry, this procedure is very easy and safe to do. You won’t damage your phone just by wiping the cache partition.
 







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8 Replies
Solution
SamsungLarry
Community Manager
Community Manager
Options
Galaxy S20

I believe testing your device in safe mode will give you the fix for this. Also, try clearing the cache partition.

 

The system cache partition stores temporary system data. It's supposed to allow the system to access apps more quickly and efficiently, but sometimes things get cluttered and outdated, so a periodic cache clearing can help make the system run more smoothly. 
Follow these steps: 
- Turn off the device.
- Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
- When the Android logo displays, release all three keys.
- An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
- Press the Volume down key several times to highlight wipe cache partition.
- Press Power key to select.
- Press the Volume down key to highlight yes, them and press the Power key to select.
- When the wipe cache partition is complete, Reboot system now is highlighted.
- Press the Power key to restart the device.
Your phone will take a little time booting up after the cache partition is wiped off of its contents as it will rebuild or recreate those caches. Don’t be alarmed if the phone gets stuck on the logo for a minute or two after this just don’t turn it off so that what was deleted will be replaced successfully. So, wait for your phone to become active. Don’t worry, this procedure is very easy and safe to do. You won’t damage your phone just by wiping the cache partition.
 







Be sure to click " ✓ Accept as Solution" when you find an answer that works for you.





Please note, notification emails are a DO NOT REPLY address, you must log-in on the community page in order to respond.

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SainathChigare
Astronaut
Options
Galaxy S20

The Below solution did not resolve the issue this needs to be checked by Samsung as these premium phones giving these issues is not good as Samsung's repitution.


@SamsungLarry wrote:

I believe testing your device in safe mode will give you the fix for this. Also, try clearing the cache partition.

 

The system cache partition stores temporary system data. It's supposed to allow the system to access apps more quickly and efficiently, but sometimes things get cluttered and outdated, so a periodic cache clearing can help make the system run more smoothly. 
Follow these steps: 
- Turn off the device.
- Press and hold the Volume Up key and the Bixby key, then press and hold the Power key.
- When the Android logo displays, release all three keys.
- An ‘Installing system update’ message will show for 30 – 60 seconds before the Android system recovery menu options appear.
- Press the Volume down key several times to highlight wipe cache partition.
- Press Power key to select.
- Press the Volume down key to highlight yes, them and press the Power key to select.
- When the wipe cache partition is complete, Reboot system now is highlighted.
- Press the Power key to restart the device.
Your phone will take a little time booting up after the cache partition is wiped off of its contents as it will rebuild or recreate those caches. Don’t be alarmed if the phone gets stuck on the logo for a minute or two after this just don’t turn it off so that what was deleted will be replaced successfully. So, wait for your phone to become active. Don’t worry, this procedure is very easy and safe to do. You won’t damage your phone just by wiping the cache partition.
 


 

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Ydania
Product Expert
Options
Galaxy S20

@WTC 

     This sounds like a hardware issue to me especially since the screen recording didn't capture the issue. Flickering screen like this is typically due to shock. I would call 1800-SAMSUNG to arrange a repair either through mail in or an instore authorized repair location. 

WTC
Cosmic Ray
Options
Galaxy S20

Thanks for the input, I did record the flickering with iPhone but this forum doesn't let me upload a video. I'll try to clear the cache partition and see if this happens again.

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WTC
Cosmic Ray
Options
Galaxy S20

I just did wipe cache partition it won't only took me about little over 1 minute and I'm back up. I just gotta wait and see.

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Zephroth
Asteroid
Options
Galaxy S20

If it happens again turn on always on display and see if the greenish yellow tint dissapears on the always on display part.  I beleive this to be a software patch issue.

MsBrianaRenee92
Astronaut
Options
Galaxy S20
I have also been experiencing the same problem with my galaxy note 9.
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Vasanth
Astronaut
Options
Galaxy S20
same here
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