Hi there! I understand you're having trouble with the Walking Weight Loss app flashing when you try to open it on your iPhone. Let's see if we can resolve this together.

First, we should try a couple of basic troubleshooting steps:

1. Restart Your iPhone: Sometimes, a simple restart can help clear temporary issues. Press and hold the side button until you see the slider, then drag the slider to turn off your iPhone. After it's off, press and hold the side button again until you see the Apple logo.

2. Reinstall the App: If restarting doesn't help, let's try uninstalling and then reinstalling the Walking Weight Loss app. To do this, find the app on your home screen, press and hold it until the icons start wiggling, then tap the "X" to delete it. After that, go to the App Store, search for the Walking Weight Loss app, and reinstall it.

3. Check for iOS Updates: Ensure your device is running the latest version of iOS, as updates can fix various bugs. Go to Settings > General > Software Update and check if any updates are available.

After you've tried these steps, let me know if the issue persists or if you're able to access the app successfully. If the flashing screen continues, we can explore some more advanced troubleshooting options!

I have already tried all 3 possible solutions

Thanks for letting me know you've already tried those solutions. Since the app is still not opening correctly, let’s dive a bit deeper.

1. Check Storage Space: Make sure your iPhone has enough storage space available. If your storage is nearly full, it might cause apps to misbehave. To check your storage, go to Settings > General > iPhone Storage.

2. Check for Compatibility: Confirm that the Walking Weight Loss app is compatible with your version of iOS. You can typically find this information on the app’s page in the App Store.

3. Reset Settings: As a more advanced step, you can reset all settings on your iPhone. This won’t delete your data, but it will reset system settings (like Wi-Fi passwords and wallpapers). To do this, go to Settings > General > Transfer or Reset iPhone > Reset > Reset All Settings.

4. Check for App Permissions: Sometimes, apps require specific permissions to function correctly. Go to Settings > Walking Weight Loss and ensure that all necessary permissions are granted.

5. Contact Support: If you've tried everything and it still doesn't work, it might be a good idea to reach out directly to our support team at [email protected] for specialized assistance. They can provide you with additional support tailored to this specific issue.

Please try these steps and let me know what you find, or if you need any further assistance!