If you are experiencing a screen flashing issue with the Murphy Drive Rewards app, follow these step-by-step troubleshooting methods to resolve the issue:

1. Force Restart Your Device:
- Press and hold the side button along with the volume up or down button until you see the power off slider.
- Slide to power off, then after your device is completely off, press and hold the side button again until you see the Apple logo.

2. Update the App:
- Open the App Store on your iPhone.
- Tap on your profile icon at the top right.
- Scroll down to the Murphy Drive Rewards app.
- If an update is available, tap "Update".

3. Clear App Cache:
- Since iOS does not offer a direct way to clear app cache, you may need to uninstall and reinstall the app.
- Press and hold the app icon until a menu appears, then select "Remove App" and "Delete App".
- Reinstall it from the App Store.

4. Check for iOS Updates:
- Go to Settings > General > Software Update.
- If an update is available, download and install it.

5. Check Your Internet Connection:
- Ensure you have a stable internet connection, as a weak connection may lead to app malfunction.
- Switch between Wi-Fi and cellular to see if the issue persists.

6. Reinstall the App:
- If the issue continues, fully uninstall the Murphy Drive Rewards app (as mentioned above) and then reinstall it from the App Store.

7. Contact Support:
- If the problem is not resolved after following these steps, consider reaching out to Murphy Drive Rewards support for further assistance.
- Check out this video that discusses common fixes for the Murphy Drive app not working for additional insights - learn more.

By following these steps, you should be able to alleviate the screen flashing issue. If problems persist, it may indicate a bug that needs to be addressed in a future app update.