Hi there! I understand you're experiencing a camera blackout when trying to scan with the Cal AI app on your iPhone running iOS 18.7. Let me help you get that sorted out.

To start, could you tell me if the camera blackout happens only with the Cal AI app, or does it affect the iPhone’s camera app too? Also, have you tried any fixes already, such as restarting the phone or checking app permissions?

Meanwhile, here’s a step-by-step guide for us to try:

1. Restart your iPhone: Sometimes a simple reboot clears any temporary glitches. Just power off and turn it back on.

2. Check Camera Permissions:
- Go to Settings > Privacy & Security > Camera.
- Ensure Cal AI has permission enabled. If it’s off, toggle it on.

3. Force Close and Reopen the Cal AI App: Swipe up from the bottom (or double-click home button if available), find the Cal AI app, and swipe it away to close. Then open it again.

4. Update the Cal AI App: Open the App Store, tap your profile icon, and see if there’s an update waiting for Cal AI. Using an outdated app version can cause compatibility issues.

5. Check for iOS Updates: In Settings > General > Software Update, see if your iOS is up to date. Though you mentioned version 18.7, sometimes a minor patch can fix app compatibility issues.

6. Reinstall the Cal AI App: If the above steps don’t help, uninstall the app by pressing and holding its icon then tapping delete, and reinstall it fresh from the App Store.

If after this, the camera is still black when using Cal AI, it might be related to an app bug or conflict. Sometimes certain settings like hardware overlays cause glitches with cameras in apps, but iPhones usually handle this well.

Would you like me to guide you through these steps one by one? Or if you have already done some of these, please let me know which ones.

I’m here to help you get this fixed!