S20 FE Amoled screen is not truly black [issue]

[williamtavares]

I noticed at bedtime that this phone's panel didn't get those deep blacks we come to expect from samsung panels, i remeber in 2012 i had the same issue with my galaxy S2, i can see the black being lit like it was an LCD panel.

black image 0% brightness at 60hz = i can clearly see the display back-light.

black image 0% brightness at 120hz = it behaves like an amoled panel should, i can't see a thing.

The phone is running the latest software, oneui 3.1 + May patch.

Is this a known software bug? I think i'll return this phone because of this.

 

[blackhawk]

There is no backlight in a AMOLED display.
Firmware or hardware issue.
Or your eyes.

 

[williamtavares]

There is no backlight in a AMOLED display.
Firmware or hardware issue.
Or your eyes.

Definitely not my eyes unfortunately.

 

[blackhawk]

Try clearing the system cache
Try a hard reboot
Doesn't it have variable display frequency depending on what you're viewing ie static picture vs scrolling?
Could that be coming into play?
A glitch. You can't clear the graphic driver data but maybe the apk that controls the variable rate if separate from that.
You haven't done any major firmware upgrades, right?
I haven't play with the higher refresh rate displays, pretty much love my 10+/Pie.

Otherwise...
If you're within your return window, do so.

 

[williamtavares]

Try clearing the system cache
Try a hard reboot
Doesn't it have variable display frequency depending on what you're viewing ie static picture vs scrolling?
Could that be coming into play?
A glitch. You can't clear the graphic driver data but maybe the apk that controls the variable rate if separate from that.
You haven't done any major firmware upgrades, right?
I haven't play with the higher refresh rate displays, pretty much love my 10+/Pie.

Otherwise...
If you're within your return window, do so.

phone came already running latest software, i got it 3 days ago.

 

[sivasankarpnair1998]

either you bought some cheap a$$ black market fakes or its some software fu*k up in the brightness department.

 

[williamtavares]

either you bought some cheap a$$ black market fakes or its some software fu*k up in the brightness department.

big retail store.
maybe some calibration issue? however someone tested on his device and had pitch black on both refresh rate so i think thats a faulty panel.

 

[sivasankarpnair1998]

big retail store.
maybe some calibration issue? however someone tested on his device and had pitch black on both refresh rate so i think thats a faulty panel.

I've not personally used an S20 FE , but am a samsung user myself.

it should be pitch black.

are you sure the picture was absolute black and not slightly gray ?

if it was an absolute black image , the screen should not emit no light at all irrespective of what brightness you put it in , since it is black.

 

[williamtavares]

I've not personally used an S20 FE , but am a samsung user myself.

it should be pitch black.

are you sure the picture was absolute black and not slightly gray ?

if it was an absolute black image , the screen should not emit no light at all irrespective of what brightness you put it in , since it is black.

yeah i used different sources for this, including some apps.
i had many amoled display phones before, this was my first samsung phone since the s2 i had in 2012, bummer.

 

[blackhawk]

yeah i used different sources for this, including some apps.
i had many amoled display phones before, this was my first samsung phone since the s2 i had in 2012, bummer.

You're within your return window. Do it tomorrow. It should be black as night.

 

[sonof]

I have the same issue. 120hz is black but 60hz is not.

 

[williamtavares]

I have the same issue. 120hz is black but 60hz is not.

This affects all units, but some users doesn't even know what we are talking about.
Tested in 3 different models, same results.

 

[sonof]

This affects all units, but some users doesn't even know what we are talking about.
Tested in 3 different models, same results.

Thanks. That's what I was thinking about. No need to send for replacement since the same is with all units. Not a big problem for me since I like to use 120hz even if it drains more battery.

 

[ivan290]

I got the same issue. It seems to be a software issue, because it only happens in always on display. If I open a black image the screen comes completely black. Weird bug.

 

[blackhawk]

There is a setting for variable current verses pulse modulation for brightness, I can't recall what they call it. Try using the variable current setting.

 

[froki]

I got the same issue. It seems to be a software issue, because it only happens in always on display. If I open a black image the screen comes completely black. Weird bug.

Try to turn off Auto brightness in AOD settings, that fixed it for me.

 

[ivan290]

Try to turn off Auto brightness in AOD settings, that fixed it for me.

I have auto brightness in AOD disabled (and the normal auto brightness too) but the bug is still there. I configured it to max brightness so I notice it a little less