Changing the preferred network mode can stop an eSIM from registering when the selected technology is unavailable to the device, plan or local partner network.
Forcing 5G does not create 5G coverage, and forcing an older mode can exclude the network used for travel data. An automatic 4G/5G-capable setting is usually the safest starting point.
Keep the eSIM installed. Network mode is a radio preference, not a reason to reinstall the profile.
Quick answer: Restore the preferred network type to the phone’s automatic or recommended 4G/5G mode, leave operator selection automatic and refresh registration with airplane mode. Then verify the data line, roaming and plan coverage.
Undo the recent network-mode change
- Open the travel eSIM’s mobile-network settings.
- Find Preferred network type or Voice and Data.
- Select the automatic or recommended 4G/5G option.
- Set network operator selection to automatic.
- Toggle airplane mode once and wait for registration.
Exact menu names vary by phone. Do not use hidden testing menus or force unsupported radio bands.
Why 5G-only can fail
5G availability depends on the plan, handset, regional bands, partner network and local coverage. A 5G icon is not guaranteed, even where the destination has a 5G network.
Allowing 4G fallback keeps data available where 5G is weak or not provided to the travel profile.
Check the rest of the connection
Confirm that the eSIM is selected for mobile data and its required roaming setting is enabled. For manual NoveSIM APN entry use data.esim.
If the line shows signal but no internet, follow the data-connection checks. For border or arrival problems, use the roaming troubleshooting sequence.
When manual operator selection helps
Use it only after automatic selection fails and only with partner networks named in the plan instructions. A visible operator may reject the eSIM if it is not an eligible partner.
NoveSIM plans are data-only, so test with a browser rather than a conventional call.
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FAQ
Should I force 5G?
No. Use automatic 4G/5G selection so the phone can fall back where 5G is unavailable.
Can network mode remove an eSIM?
No. It changes radio access preferences, not the installed profile.
Why does manual network selection fail?
The chosen operator may not be a supported partner or may have weak coverage.
Should I reset all network settings?
Not first. Restore automatic mode and registration before a disruptive reset.
Final Recommendation
Return the phone to an automatic supported network mode and let it choose an eligible partner.
Then check data-line, roaming and APN settings without deleting the eSIM.

