An APN tells the phone how to open a mobile-data session. Most travel eSIMs configure it automatically, so do not edit the field simply because the phone has just arrived in China. First confirm that the eSIM is on, selected for mobile data and allowed to use roaming.
For a NoveSIM travel eSIM, the APN is data.esim when manual entry is required. Leave username and password blank unless NoveSIM Support gives plan-specific instructions.
NoveSIM plans are data-only, without a Chinese number or traditional calls and SMS. Internet calling and messaging depend on the apps and services available on the connection.
Quick answer: If a China eSIM shows signal but has no data, verify the data line and Data Roaming first. Then open the APN settings and enter data.esim for a NoveSIM plan only when the field is empty or support instructions require it. Save the APN, select it and restart the mobile-data session. Do not delete the eSIM.
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When should you change the APN?
Change it only when the provider supplies a manual value, the field is blank or troubleshooting confirms an APN problem. An incorrect APN can leave the phone registered on a network while preventing internet access.
Before editing, check the broader sequence in China eSIM troubleshooting. If the profile is not installed, use the China eSIM activation guide instead.
China eSIM APN settings for NoveSIM
| Field | Value |
|---|---|
| APN | data.esim |
| Username | Leave blank |
| Password | Leave blank |
| Authentication type | Leave at default |
Do not copy a domestic Chinese operator’s APN into a travel eSIM. The required value belongs to the eSIM provider and plan, not merely to the country you are visiting.
Enter the APN on iPhone
- Open Settings and select Cellular or Mobile Service.
- Choose the China travel eSIM.
- Open Cellular Data Network when the menu is available.
- Enter data.esim in the Cellular Data APN field.
- Leave username and password blank, return to the previous screen and restart the data session.
Some carrier profiles hide this menu. If it is unavailable, do not reset unrelated phone settings; contact support with screenshots of the eSIM and mobile-data screens.
Enter the APN on Android
- Open Settings and choose Connections or Network & Internet.
- Open Mobile Networks, select the travel eSIM and choose Access Point Names.
- Create a new APN or edit the travel eSIM’s APN.
- Enter data.esim, leave unsupported fields at their defaults and save.
- Select the saved APN, toggle flight mode and test with Wi-Fi off.
What to check if the APN is correct
- The China eSIM is selected for mobile data.
- Data Roaming is enabled on the travel line.
- Automatic mobile-data switching is disabled.
- The plan has remaining data and is within its validity period.
- Network Selection is Automatic unless support directs otherwise.
Coverage and 4G or 5G access depend on the plan, device, region and partner network. The China mobile-network guide provides the wider context.
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FAQ
What is the NoveSIM APN for a China eSIM?
Use data.esim when the NoveSIM plan requires manual APN entry.
Should the username and password be filled in?
No. Leave them blank unless NoveSIM Support provides different plan-specific values.
Why is the APN menu missing on iPhone?
A carrier profile can manage or hide the setting. Contact support rather than changing unrelated network settings.
Should I delete the eSIM if changing the APN does not work?
No. Keep it installed, collect screenshots and continue troubleshooting or contact support.
Final Recommendation
Check the selected data line and roaming before editing the China eSIM APN.
For NoveSIM, use data.esim only where manual entry is needed, then save and select the APN before retesting.
If mobile data still fails, verify the allowance and network session and seek support without deleting the installed profile.