The screen timeout feature on your Galaxy S25 Ultra automatically turns off the display after a set period of inactivity. It helps save battery and prevents accidental touches when you forget to lock your phone. However, if the screen timeout is not working and your display stays on longer than it should, it’s likely caused by a misconfiguration or an app keeping the screen awake.
Here’s how to fix it and make sure your screen timeout behaves normally again.
Why Your Galaxy S25 Ultra Screen Timeout Might Not Be Working
- Screen timeout settings are incorrectly configured.
- Smart Stay or Eye Comfort features are keeping the screen on.
- Developer options or third-party apps prevent sleep mode.
- System glitches or outdated software versions.
- Adaptive brightness or motion-based features interfering.
Check the Screen Timeout Setting.
Your timeout duration might be set to a long period or never timeout. Adjusting it ensures your display turns off after the selected interval.
- Open Settings, and then tap Display.
- Tap Screen timeout, and then choose a shorter time such as 30 seconds or 1 minute.
Once selected, wait to see if the screen now turns off automatically.
Disable Smart Stay.
Smart Stay uses the front camera to detect your face and keep the screen on while you’re looking at it. If it’s active, it can override the timeout setting.
- Open Settings, and then tap Advanced features.
- Tap Motions and gestures, and then turn off Smart Stay.
After turning it off, lock your device and check if the timeout now works properly.
Turn Off Developer Options Keep Screen On.
If you’ve enabled Developer Options, there’s a setting that keeps your screen on while charging. This can make it seem like screen timeout is broken.
- Open Settings, and then tap Developer options.
- Scroll down and turn off the option that says Stay awake.
If you don’t see Developer options, you can skip this step.
Check for Apps Keeping the Screen Awake.
Some apps, like video players, navigation tools, or fitness trackers, are designed to keep your display active. Identifying them can help you isolate the issue.
- Open Settings, and then tap Battery.
- Tap Background usage limits, and then restrict apps that are keeping the screen active unnecessarily.
Restart your phone afterward and observe if the timeout resumes working.
Update Software.
Outdated software can cause system settings like screen timeout to malfunction. Updating ensures you’re running the most stable version of One UI 7.
- Open Settings, and then tap Software update.
- Tap Download and install, and then follow the prompts if an update is available.
After installation, restart your phone and test the timeout behavior again.
Reset All Settings.
If none of the above works, there might be a corrupted configuration interfering with display settings. Resetting all settings restores them to default without deleting your files.
- Open Settings, and then tap General management.
- Tap Reset, and then tap Reset all settings.
Once done, set your preferred screen timeout again and check if it now works.
Screen timeout issues on the Galaxy S25 Ultra are usually caused by small setting conflicts. Adjusting features like Smart Stay or updating the system often solves the problem quickly.
FAQs
Why does my Galaxy S25 Ultra screen stay on even when I’m not using it?
This happens when Smart Stay or similar features detect your face or movement. Disabling them usually restores normal timeout behavior.
Does screen timeout affect battery life?
Yes. Longer timeout durations keep the display on unnecessarily, which consumes more battery power.
Will resetting all settings delete my personal data?
No. It only restores default system preferences like display, network, and notification settings while keeping your apps and files intact.
