Internet and Phone Scenarios

Last checked: 2026-06-05 Scenario library updated 8 concrete scenarios

Mobile data, eSIM, roaming, VPN, SMS, and local-number dependencies.

1. Your eSIM Does Not Connect After LandingA first-hour recovery path when a travel eSIM fails at the airport.
2. Your Phone Does Not Support eSIMHow to build an internet plan when the travel eSIM option is unavailable.
3. Hotel Wi-Fi Does Not Open Your Work AppsWhat to do when hotel Wi-Fi works but foreign work tools or messages do not.
4. Roaming Is Too Slow for Maps After LandingHow to recover when home-carrier roaming connects but cannot support maps or ride-hailing.
5. A Local SIM Counter Asks for Your PassportWhat to prepare when buying a mainland China SIM card as a visitor.
6. An App Requires a Mainland Phone NumberHow to decide what to do when a China app or mini-program rejects your foreign number.
7. Your VPN App Does Not Work on Wi-FiA cautious recovery path when Wi-Fi and VPN access fail during a short China trip.
8. You Cannot Receive Bank SMS in ChinaHow to avoid getting locked out of card approval, payment, or login flows because SMS does not arrive.