Set the amount of time that elapses before the Samsung Galaxy S9 times out and shuts off the screen with these steps.
Set Screen Timeout
- From the Home screen, select “Settings” > “Display” > “Screen timeout“.
- Choose one of the following:
- 15 seconds
- 30 seconds
- 1 minute
- 2 minutes
- 5 minutes
- 10 minutes
Enable or Disable “Smart Stay”
The Galaxy S9 has a feature that will detect if your eyes are looking at the screen. If your eyes are detected, the screen will not time out. Enable or disable this setting with these steps.
- From Home, select “Settings“.
- Choose “Display“.
- Set “Smart stay” to “On” or “Off” as desired.
Disable Screen Timeout
The Galaxy S9 does not have an option to completely disable the screen from timing out when the phone is not plugged in. You can however set the phone to never disable the screen when it is plugged in using these steps.
- Select “Settings” > “About phone“.
- Tap “Build number” 7 times to unlock developer mode.
- Now under “Settings” you have an option for “Developer options“. Under this menu, there is a “Stay awake” option.
David South says
June 4, 2019 at 1:32 amDownload no screen off from play store
This will disable screen time out,
Mitch Bartlett says
April 22, 2019 at 9:58 amYou may have Adaptive Brightness turned on. You’ll want to turn that off.
Charlie Warren says
April 21, 2019 at 5:35 pmThe Phone is Still Dimming… When I Get a Phone Call, but at Least It’s Not Black.