China connectivity · Practical guide
China Travel eSIM Installed but No Internet: What to Check
An installed eSIM is not necessarily active or connected. Before departure it may have no service outside its coverage area. After arrival, check the exact plan, allowance and intended data line before changing settings or deleting anything.
chinaway Editorial Team · Guidance reviewed 10/15/2026 · Provider and device instructions take priority.
Three checks for this problem
- Are you currently in a covered destination, with an active plan and remaining allowance?
- With Wi-Fi off, is the travel eSIM enabled and selected for mobile data?
- Does an ordinary website fail too, or is only one app or account affected?
These are preparation questions, not a field test or an assurance that a service will work.
Installed, but no mobile data
- Check you are in a covered destination and your purchased plan is active, unexpired and has remaining data. Turn Wi-Fi off for this check.
- In mobile settings, enable the intended SIM and select it for mobile data. Apply data roaming only as instructed for that line; review home-line charges and automatic data switching.
- Try airplane mode off/on or restart once. Use an APN or manual network selection only if your provider supplies the exact values or instructions.
- If the problem remains, use a known connection to contact the seller. Give the order, location, phone model, time and exact error privately; do not delete the profile while waiting.
When should I install and activate?
- Read your exact plan’s rules before installation. Some plans start at installation or manual activation, while others start on connection to a covered network.
- Install in advance only when the provider’s instructions allow it. Save the instructions and confirm any deadline after purchase.
- Before arrival, lack of service can be expected if the plan only covers the destination. It does not prove failure or success in China.
Installation or QR code failed
- Use a stable internet connection and follow the installation email or official app for your exact order. Confirm your model and unlock status.
- Check whether the QR is already installed on this phone. An installation QR can have reuse or device-transfer restrictions; do not repeatedly scan it on other phones.
- Do not delete an installed profile or reset the phone as a first step. Contact the seller with your order and the exact error. Keep QR codes and account details private.
Data works, but an app or work service does not
- First check another ordinary website on the same mobile-data line. Confirm you did not switch back to hotel Wi-Fi or a different SIM.
- Compare the problem with your provider’s exact app-access claims. Website reachability, app login, account eligibility and location restrictions are separate things.
- For work access, check with your company’s IT team before travel. For other app or account problems, contact that service and the connectivity provider. Keep a workable alternative for essential tasks.