To preview pictures taken with the camera in the SL-Touch app for Windows, you can try the following troubleshooting steps:
- Ensure that the app has necessary permissions to access the camera and storage.
- Check if there is an option to enable/disable the preview feature within the app's settings.
- Update the SL-Touch app to its latest version to ensure compatibility with your updated phone.
- Restart your phone and try again.
- If the issue persists, you may consider reaching out to the app's support team for further assistance.