If your iPhone shows no service or no data, check in this order:

  1. Settings → Cellular → is the Coral eSIM line turned on?
  2. Settings → Cellular → Mobile Data → select Coral eSIM
  3. Coral eSIM line → is Data Roaming on?
  4. Airplane Mode on → wait 5 seconds → off
  5. Restart the phone
  6. Settings → Cellular → Network Selection → turn off Automatic and pick a local carrier manually
  7. Update iOS to the latest version (on Wi-Fi)

If you still see "No Service", confirm your destination is covered by your plan. Still stuck? Contact support. Full guide: eSIM troubleshooting.