my iphone 12 esim is not working

Changing your physical SIM card shouldn't directly affect your eSIM functionality on your iPhone 12. Here are some troubleshooting steps you can try to get your eSIM working:

Basic checks:

• Ensure your iPhone is updated: Make sure your iPhone is running the latest version of iOS. Go to Settings > General > Software Update and install any available updates.
• Confirm carrier and plan compatibility: Verify that your carrier supports eSIM functionality and that your cellular plan is compatible with Dual SIM with eSIM.
• Check for network outages: Contact your carrier to confirm there are no service outages in your area that might be affecting your eSIM.

Specific troubleshooting:

• Re-activate your eSIM profile: Go to Settings > Cellular and tap on the eSIM line. Then, tap " Cellular Plan" and choose "Activate eSIM". Follow the on-screen instructions provided by your carrier.
• Reset network settings: This will erase all your saved Wi-Fi passwords, cellular settings, and VPN configurations. Go to Settings > General > Reset > Reset Network Settings.
• Restart your iPhone: Often, a simple restart can resolve temporary glitches.

If none of these steps work:

• Contact your carrier: They can help diagnose the issue further and provide specific instructions based on your plan and network.
• Contact Apple Support: If your carrier cannot resolve the issue, you can contact Apple Support for further assistance.

Here are some additional resources that you might find helpful:

• Apple Support article on troubleshooting eSIM issues: If you can't set up an eSIM on your iPhone - Apple Support
• Apple Support discussion thread on eSIM not working: https://discussions.apple.com/thread/253857257

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