Hi there! I understand the Norton Password Manager app on your iPhone 12 is just showing a spinning circle and not opening, while it works fine on your laptop. Let’s work through this together to get it resolved.

First, can you tell me if the app has recently updated or if this issue started suddenly without any changes? Also, have you tried restarting your iPhone or force closing and reopening the app yet?

Meanwhile, here are some steps to try:

1. Restart your iPhone: Sometimes a simple reboot clears up temporary glitches that cause apps to hang.

2. Force close and reopen the app: On iPhone, swipe up from the bottom and pause to open the app switcher. Find Norton Password Manager and swipe it up to close it. Then open it again.

3. Check for app updates: Open the App Store, go to your profile, and see if there’s an update available for Norton Password Manager. Installing the latest version often fixes bugs.

4. Clear app cache or reinstall the app: If the problem persists, uninstall Norton Password Manager from your iPhone, restart the device, then reinstall it from the App Store. This can fix any corrupted data causing the app to freeze3.

5. Verify your account login: Make sure you are logged into the same Norton account on both your laptop and iPhone. Any mismatch could cause syncing issues2.

Try these out, and let me know if the app still doesn't open or if you get any errors. That way, I can guide you further or check if there are other underlying issues.

Are you satisfied with these initial steps I provided?