If the following does not help then consider backing up and factory reset or visit a Samsung Experience Store or Samsung Service Centre for assistance.
Hardware test:
go over to your dial pad and type in *#0*#, this will bring up a number of tests.
Front Camera: Select Front Cam, align your phone and tap to take a photo. Review the quality of the photo and let us know the results. You can then tap the screen to return to the LCD test screen.
Back Camera: Select Mega Cam. Align your phone and tap the ‘capture’ icon to take a photo. Verify that the flash works during this as well.
Review the photo and let us know the results.
Let me know if your cameras focus correctly in this mode.
If they do, then it highlights a software issue, if not, then I'd recommend popping into a Service Location to have your phones looked at by a trusty engineer at a Samsung Experience Store or Samsung Service Centre location"
Clear System Cache.
Try clearing the Apps Cache and Data first by navigating to Settings > Apps > Choose the App and Storage.
If no resolution then consider Turning off the Samsung Phone.
Press and hold the Volume Up key, Home key, and Power key at the same time.
When the phone powers up the Android System Recovery screen appears approx 30 seconds later.
Release all of the keys you had pressed.
Press the Volume down key on the phone to choose the "wipe cache partition." section.
Press the Power key on the phone to select.
Press the Volume down key to highlight “yes” and press thePower key to select.When the wipe cache partition is complete, “Reboot system now” is highlighted.
Press the Power key to restart the device.
Safe Mode.
Turn the device off.
Press and hold the Power key past the model name screen.
When "SAMSUNG" appears on the screen, release the Power key.
Immediately after releasing the Power key, press and hold the Volume down key.
Continue to hold the Volume down key until the device finishes restarting.
Safe mode will display in the bottom left corner of the screen.
Release the Volume down key when you see Safe Mode.
Uninstall apps that are causing a problem.
Turn off safe mode.
Press and hold the Power key.
Tap Restart.
Daily Driver > Samsung Galaxy s²⁴ Ultra 512Gb ~ Titanium Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
