How to Fix Galaxy S23 Display Not Waking from Sleep

Having your Galaxy S23’s display remains black and unresponsive when you try to wake it can be annoying. You likely expect to simply press the power or home button to turn the screen back on, but instead are met with a sleeping, inactive display. Don’t worry too much yet – this is usually caused by incorrectly configured settings or battery optimization.

Galaxy S23 Display Not Waking Up from Sleep

With a few targeted tweaks and troubleshooting steps, you can adjust your S23 to wake properly from sleep. This guide will outline the most common reasons for the display not waking up and practical solutions to test. With the right fixes, your Galaxy S23’s screen will reliably turn on each time you need it.

Common Causes

Some of the most frequent causes for a Galaxy S23 display not waking up include but are not limited to the following:

  • Extreme battery optimization – Ultra battery saving modes disable waking when not needed to conserve power. Disable these modes.
  • Power button unresponsive – Hardware issues with the power button itself can prevent waking the display.
  • Proximity sensor engaged – The sensor thinks the phone is in a pocket or face down, disabling the screen. Clean the sensor.
  • App power management – Specific apps may have optimized battery settings preventing waking up. Adjust settings.
  • Glitchy power manager – Software bugs in the power management can freeze waking from sleep. Restart your phone.
  • Stuck power state – A glitched power state can freeze the phone. Forcing a reboot resolves this.
  • Faulty hardware – Bad OLED panels, digitizers, or ribbon cables will require professional repair.

Troubleshooting Procedures

If your Galaxy S23 display won’t wake up from sleep, you can try these subsequent tweaks:

Disable Battery Optimization Modes

The issue of the display not waking up can often be caused by the Ultra power saving and App power management features. 

These features are designed to conserve battery life by automatically disabling certain functions when the battery is low. However, they can sometimes be too aggressive and cause more harm than good. 

To solve the issue, you should turn off both of these features. This will ensure that the display wakes up promptly and functions properly. 

Here’s how to disable battery optimization modes on Galaxy S23:

  1. Go to Settings.
  2. Tap on Battery and device care.
  3. Tap on Battery.
  4. Tap on Battery optimization.
  5. Toggle off the switch next to the apps that you want to disable battery optimization for.

Update Software

When your phone goes into sleep mode, it essentially shuts down certain components of the system to conserve power. However, sometimes issues can occur when trying to wake it up from sleep. 

To address this problem, it’s a good idea to check for and install any available software updates. 

These updates often include fixes for power management bugs that could be causing the issue.

Here are the steps on how to update the software on Galaxy S23:

  1. Go to Settings.
  2. Tap on Software update.
  3. If there is an update available, it will be listed under Available Updates.
  4. To install the update, tap on Download and Install.

The update will be downloaded and installed automatically.

Check Power and Home Buttons

If your device is not waking up properly, it could be due to physical damage or disabled buttons. Please check that both the physical power and home buttons are functioning properly. 

If either of them is damaged or disabled, it may be preventing the device from waking up properly.

Clean Proximity Sensor

Sometimes, dust or debris can accumulate on the sensor and prevent it from waking when it’s not covered. Using compressed air to blow out any obstructions can help clear the sensor and resolve the issue. 

You can try using a can of compressed air to gently blow air onto the sensor and see if that helps. Just be careful not to get too close or use too much force, as that could damage the sensor.

Restart Your S23

Restarting your phone completely means turning it off and then turning it back on. This can help fix issues such as frozen screens, slow performance, and other glitches. Restarting your phone entirely can likewise clear any processes that are stuck in a sleep state. It’s a simple and effective solution to try before seeking professional help.

The Galaxy S23 can be restarted in two ways — using the Power button and through Settings.

A. Using the power button:

  1. Press and hold the Power button for about 7 seconds.
  2. You will see a message asking if you want to restart your phone.
  3. Tap on Restart.

B. Using the Settings app:

  1. Go to Settings.
  2. Tap on Advanced features.
  3. Tap on Restart.
  4. Tap on Restart now.

Force Reboot Phone

If you’re experiencing issues with your device, such as it is unresponsive or frozen, you can do a forced reboot/restart.

Here are the steps on how to force restart a Galaxy S23:

  1. Press and hold the Power button and the Volume down button at the same time for about 7 seconds.
  2. You will see the Samsung logo appear on the screen.
  3. Your phone will restart.
Long-press Power and Volume Down buttons

This will reset any frozen sleep states that may be causing the issue and should get your device back up and running smoothly.

Factory Reset

For persistent issues not resolved with troubleshooting, a factory reset can be considered as the last resort.

A factory reset is a process that erases all the data and settings on your device and restores it to its original factory settings. This can be a useful step in troubleshooting persistent issues that may be affecting the sleep-wake function.

However, it is important to note that a factory reset will completely wipe all data from your device, so it should only be used as a last resort when all other troubleshooting methods have failed.

Before performing a factory reset, it is recommended to back up all important data to ensure that it is not lost.

Here are the steps on how to factory reset a Galaxy S23:

  1. Go to Settings.
  2. Tap on General management.
  3. Tap on Reset.
  4. Tap on Factory data reset.
  5. Tap on Reset device.
  6. Enter your PIN or password if prompted.
  7. Tap on Erase everything.

Your Galaxy S23 will be reset to its factory settings. This means that all of your data, including apps, photos, videos, and settings, will be erased.

Contact Samsung Support

If display waking issues continue, contact Samsung support to diagnose potential hardware defects and arrange professional repair or replacement.

By methodically verifying correct settings and ruling out software glitches, you should be able to make your Galaxy S23 display reliably wake again as expected when you need it.


  1. What are some of the most common reasons a Galaxy S23 screen stays black when trying to wake it?

    Common causes include extreme battery saving modes that disable waking the screen, faulty power or home buttons, proximity sensor thinking the phone is covered, apps with battery optimizations turned on preventing waking, bugs in the power management software, the phone stuck in a sleep state, and hardware defects like bad OLED panels requiring repair.

  2. Why does my Galaxy S23 display sometimes turn on but other times stay black when trying to wake it?

    Intermittent black screen issues when waking are often caused by bugs in power management software. Restarting your S23, updating software, removing battery optimizations, and force rebooting can help resolve glitchy behavior where waking only sometimes works.

  3. How can I troubleshoot and determine the cause of my Galaxy S23 display not waking up?

    Start by disabling battery saving modes, checking physical buttons, cleaning the proximity sensor, adjusting app settings, restarting your phone, and force rebooting it if stuck in a sleep state. Try waking the display after each step. If issues continue, a factory reset can clear any deep software problems. Persistent issues likely indicate a hardware failure.

  4. What steps should I take if my Galaxy S23 screen stays black and unresponsive after troubleshooting?

    If your S23 still fails to wake after toggling settings, rebooting, factory resetting, and troubleshooting, contact Samsung support. They can help properly diagnose hardware defects like bad OLED screens, digitizers, or cabling that require professional repair to get the display waking again.

  5. How can I prevent issues with my Galaxy S23 display not waking from sleep?

    Avoid using extreme battery-saving modes that overly disable screen waking. Keep your phone software updated. Use a minimal number of apps with battery optimizations turned on. Schedule occasional restarts to clear any glitches. Avoid exposing the phone to moisture or drops that could damage display hardware.

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