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Original topic:

Advice please

(Topic created on: 20-10-2021 10:46 PM)
ashleigh90
Explorer
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Galaxy S21 Series
Hi. I have a S21 ultra and if I'm in a dull lit room my screen turns off, or if I cover the top of my screen the screen also turns off.
Can this be altered or changed.
Thank you. 
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15 REPLIES 15
Steven9761
Helping Hand
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Galaxy S21 Series
I think you might have ADAPTIVE BRIGHTNESS turned on. Go into SETTINGS/DISPLAY, then scroll down until you can see ADAPTIVE BRIGHTNESS. if that setting is on, switch it off, and see if it has the desired result. 😊
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Glenntech
Voyager
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Galaxy S21 Series
Agree with the other answer.
The top of the phone when it gets covered will turn the screen off when you are on a call etc
This is so when you hold it to your ear, it will turn it off to stop the phone from getting too warm against the ear. Will also help battery life
As far as I'm aware, this setting can't be turned off
ashleigh90
Explorer
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Galaxy S21 Series
Adaptive brightness is already off
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ashleigh90
Explorer
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Galaxy S21 Series
Thank u. I understand that but my screen is turning off when I'm not on a call.
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GoanGeek
Hotshot
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Galaxy S21 Series
Settings > display > screen timeout and can choose upto 10 mins .

Although wouldn't recommend more than a minute as it's a security feature and battery saver the less you keep it.
AndrewL
Moderator
Moderator
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Galaxy S21 Series

@ashleigh90: If you have a case or cover on the phone, try removing it to see if this helps. From what you have described, it sounds like your Proximity Sensor is kicking in, although that should only be functional when making/receiving calls. Follow the steps above by @GoanGeek and if the issue persists, press and hold on the Samsung Members app icon > Diagnostics > Sensors, and check to see if any issues are flagged with the Light Sensor. 

ashleigh90
Explorer
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Galaxy S21 Series
Mines set to 5 mins.
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ashleigh90
Explorer
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Galaxy S21 Series
I have removed my case but it still happens. I thought it was the proximity sensor, as the screen goes blank while on calls as the phone is to my ear. However when I'm in a dim room or cover the top half of the screen, the screen goes blank but displays the date and time as if it were locked, and when I remove my hand or move to a brighter area the screen automatically comes back on. It can be annoying. Especially when I'm laid in bed reading an ebook with just a lamp on and my screen going on and off x
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GoanGeek
Hotshot
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Galaxy S21 Series
Only option maybe while reading ebook place your thumb or finger on screen now and then.
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