The APN tells a phone how to establish a mobile-data session. Many devices configure it automatically, so a manual change is necessary only when the plan instructions require it or data does not work after the basic line settings are correct.
Changing unrelated fields can create a new problem. Record the existing screen before editing and change only the APN required by NoveSIM.
NoveSIM travel eSIMs are data-only and do not provide conventional calls or SMS.
Quick answer: Select the NoveSIM eSIM for mobile data and enable the roaming setting required by the plan. Where manual APN entry is needed, enter data.esim exactly. Leave username and password blank unless NoveSIM instructions explicitly say otherwise, then save and test with Wi-Fi off.
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On a dual-SIM phone, verify that the Slovakia eSIM is selected for mobile data. Apply the plan’s data-roaming instruction and disable automatic data switching during the test. A correct APN cannot help if traffic is assigned to another SIM.
Enter the NoveSIM APN exactly
Use data.esim in the APN field when manual entry is required. Do not add spaces, quotation marks or punctuation. Leave username and password blank unless the individual instructions provide values.
Save and refresh the connection
Save the APN, reselect the profile if necessary and toggle airplane mode for around 20 seconds. Turn Wi-Fi off and load two unrelated websites. Restart the phone once if the new setting does not take effect.
Do not change APN when data already works
If mobile data is functioning normally, manual APN editing is unnecessary. Slow performance can come from exhausted high-speed data, congestion or weak signal rather than the APN. Use the Slovakia slow-data guide to diagnose those causes.
Preserve the installed eSIM
Do not delete the eSIM while testing APN settings. A QR code may not support another installation. Contact NoveSIM support with the phone model, location and screenshots if the reversible checks fail.
Related Articles
- Activate a Slovakia eSIM
- Install an eSIM for Slovakia
- Slovakia eSIM on iPhone
- Slovakia eSIM on Android
FAQ
What is the NoveSIM APN in Slovakia?
Where manual entry is required, use data.esim exactly.
What should I enter for username and password?
Leave them blank unless the specific NoveSIM instructions explicitly provide values.
Why does data still fail after changing the APN?
Check the active data line, roaming, plan validity and network registration. The APN is only one part of the connection.
Should I delete the eSIM and scan it again?
No. Keep it installed and contact NoveSIM support if the safe checks do not restore service.
Final Recommendation
Change the APN only when needed, enter data.esim exactly and test after confirming the correct data line and roaming setting. Preserve the eSIM profile throughout troubleshooting.