If you're experiencing issues with the Camera App such as a blank screen, missing switch camera icon, or the App does not open then you can try the following steps to resolve the issue.
Option 1: Reset the Camera App
Resetting the camera app will restore the settings to default but will not remove any images taken.
S62 Pro: Reset an Application or Feature
Option 2: Enable App Permissions
Permissions should be enabled to prevent issues on the Camera app.
S62 Pro: Enable/Disable App Permissions
Option 3: Test the App in Safe Mode
Safe mode disables the use of third party apps, so if interference is being caused then you can identify it this way.
Option 4: Sometimes a defective SD card can create application issues.
If you are using an SD Card formatted as Internal Storage, back up any user data, and remove the card, power cycle the phone, and try again.
If you are using an SD card formatted as Portable Storage, remove the card, power cycle the phone and try using the camera app again.
Option 5: Check for Software Updates
Make sure the Software is up to date as an out of date software can sometimes cause issues on the phone.
S62 Pro: Updating Your Phone's Software
Option 6: Carry out a Factory Reset
Restoring the device to factory settings might show improvement with the Camera App.