How to Fix Galaxy S25 Ultra Screen Mirroring Not Working

Screen mirroring lets you project your Galaxy S25 Ultra display onto a TV, monitor, or smart device. It is perfect for sharing videos, photos, or presentations on a larger screen. However, if it suddenly stops working, it can be due to simple connection issues or network restrictions.

Here’s how to fix it and get your screen mirroring working smoothly again.

Why Your Galaxy S25 Ultra Screen Mirroring Might Not Be Working

Smart View or screen mirroring feature is turned off.
TV or external display is not on the same Wi-Fi network.
Outdated device firmware or incompatible TV model.
Bluetooth or location settings interfering with Smart View.
Temporary software glitches or corrupted cache.

Ensure Both Devices Are on the Same Wi-Fi Network.

Screen mirroring only works when your Galaxy S25 Ultra and the receiving device are connected to the same Wi-Fi network. If one of them is on a different network or using mobile data, the phone will not detect it.

Open Settings, and then tap Connections.
Tap Wi-Fi, and make sure both your phone and TV are connected to the same network.

If the TV is using Ethernet, check that it is connected to the same router as your Galaxy S25 Ultra.

Turn On Smart View.

Smart View is the built-in feature that handles screen mirroring on Samsung devices. If it is disabled, your phone will not detect nearby screens.

Swipe down from the top-right corner to open the Quick Settings panel.
Tap Smart View, and then select the TV or display you want to connect to.

If prompted, confirm the connection on your TV.

Restart Both Devices.

Minor software bugs can prevent your phone from detecting nearby devices. Restarting both the Galaxy S25 Ultra and your TV clears temporary glitches and resets the network connection.

Turn off your TV, wait 10 seconds, then power it back on. Next, restart your Galaxy S25 Ultra and try connecting again.

Allow Permissions for Smart View.

Smart View may need specific permissions to function properly, especially after a software update. If permissions were denied, mirroring may fail.

Open Settings, and then tap Apps.
Tap Smart View, and then tap Permissions. Ensure Nearby devices and Location are allowed.

After granting permissions, try connecting again using Smart View.

Clear Smart View Cache and Data.

Corrupted app cache can cause pairing or connection issues. Clearing the cache resets Smart View without removing important data.

Open Settings, and then tap Apps.
Tap Smart View, and then tap Storage. Tap Clear cache, and then tap Clear data.

Once done, restart your phone and test screen mirroring again.

Update Your TV’s Firmware.

Older smart TVs may fail to connect if their software is outdated. Updating the TV’s firmware ensures better compatibility with newer Galaxy phones.

On most smart TVs, open Settings, tap Support or System, then tap Software update. Choose Update now if an update is available.

After updating, restart the TV and try reconnecting through Smart View.

Reset Network Settings.

If all else fails, your phone’s network configurations might be corrupted. Resetting them can fix Wi-Fi or Bluetooth issues affecting screen mirroring.

Open Settings, and then tap General management.
Tap Reset, and then tap Reset network settings. Confirm the reset, and then reconnect to your Wi-Fi network.

Once the reset is done, try using Smart View again.

Screen mirroring on the Galaxy S25 Ultra usually works seamlessly once both devices share the same network and Smart View is configured correctly. With these fixes, you should be able to cast your screen in no time.