Traveller configuring Hungary eSIM APN settings in Budapest

Hungary eSIM APN Settings for iPhone and Android

NoveSIM | Last updated on: September 26, 2026 | 7 minute read

The NoveSIM APN for a Hungary travel eSIM is data.esim when manual entry is required. Leave the username and password blank unless NoveSIM support gives different instructions. Many phones configure the APN automatically, so do not replace a working profile merely because the field is hidden.

An APN tells the phone how to open a mobile-data session. It does not control the plan’s validity, allowance or local signal. If the phone shows no network at all, check activation and network registration before treating the APN as the cause.

NoveSIM travel eSIMs are data-only. We do not provide a Hungarian number, conventional calls or SMS. A blank phone-number field is therefore not an APN error.

Quick answer: Select the Hungary eSIM for mobile data, enable data roaming on that line, and enter data.esim in the APN field only if it is empty or the setup instructions require manual configuration. Save the change, toggle aeroplane mode and test with WiFi off. Do not delete the eSIM if the menu is missing or data still fails.

Top Hungary eSIMs

Correct NoveSIM APN values

Field Value
Name NoveSIM or Hungary data
APN data.esim
Username Leave blank
Password Leave blank
Authentication Leave at the default unless support instructs otherwise
APN type Leave at the default unless support instructs otherwise

Type the APN exactly in lower case without spaces. Do not use an APN copied from Magyar Telekom, Yettel or One Hungary: a travel eSIM may use a local partner network while still requiring the travel provider’s own APN.

Before editing the APN

  1. Turn off WiFi so you can test cellular data.
  2. Confirm that the eSIM plan is active and still has data.
  3. Enable the Hungary eSIM line.
  4. Select it as the cellular-data SIM.
  5. Enable data roaming on that eSIM if required.
  6. Disable automatic data switching to the home SIM.

If data already works, leave the APN alone. Changing a functioning configuration can create a new problem without improving speed.

How to enter the APN on iPhone

  1. Open Settings.
  2. Select Cellular or Mobile Service.
  3. Tap the Hungary eSIM.
  4. Open Cellular Data Network or Mobile Data Network if the option appears.
  5. Enter data.esim in the Cellular Data APN field.
  6. Leave username and password blank.
  7. Return to the previous screen to save.
  8. Toggle aeroplane mode, then test a webpage with WiFi off.

Apple may hide the APN menu when settings are supplied automatically by the carrier profile or restricted by device management. A hidden menu does not prove that the APN is absent. Do not reset the phone or delete the eSIM just to make the field appear.

How to enter the APN on Samsung Galaxy

  1. Open Settings.
  2. Tap Connections.
  3. Select Mobile networks.
  4. Open Access Point Names.
  5. Choose the Hungary eSIM if the phone asks for a SIM.
  6. Tap Add.
  7. Use a recognisable name and enter data.esim as the APN.
  8. Save the profile and select it.
  9. Toggle aeroplane mode and test cellular data.

Menu wording varies by One UI version and device model. Make sure you edit the travel eSIM, not the home operator’s APN.

How to enter the APN on Google Pixel and other Android phones

  1. Open Settings.
  2. Select Network & Internet or the manufacturer’s equivalent.
  3. Tap SIMs and choose the Hungary eSIM.
  4. Open Access Point Names.
  5. Create a new APN.
  6. Enter data.esim and leave credentials blank.
  7. Save, select the new APN and reconnect.

Xiaomi, Motorola, Honor and other Android brands use different labels, but the principle is the same: edit the access point attached to the active travel eSIM.

Why is the APN menu missing or locked?

The carrier bundle may provision it automatically, the phone may hide editing for the selected profile or a work-management policy may block changes. First check whether data works without manual entry.

If it does not, capture a screenshot of the SIM settings and contact support over WiFi. Do not remove management profiles from a work phone without authorisation, and do not delete the eSIM to force a new menu.

APN is correct but there is still no data

The correct APN cannot overcome an inactive plan, wrong data line, disabled roaming or unsupported network. Check these in order:

  • plan status and remaining allowance;
  • Hungary eSIM enabled and selected for data;
  • data roaming enabled on the travel line;
  • automatic network selection;
  • usable signal in the current location;
  • VPN or filtering app temporarily disabled for testing.

Continue with the Hungary eSIM troubleshooting sequence rather than changing the APN repeatedly.

Can an incorrect APN cause slow data?

An incorrect APN commonly prevents a data session instead of merely reducing speed. If pages load but performance is poor, the cause is more likely weak signal, congestion, a high-speed allowance, network mode, VPN overhead or hotspot load.

Use the slow Hungary eSIM guide for a speed-specific diagnosis.

Do you need different APNs for Budapest and rural Hungary?

No. The NoveSIM APN does not change between Budapest, Lake Balaton and other Hungarian destinations. Local performance changes because of coverage and congestion, not because the city requires another APN.

If service works in Budapest but stops elsewhere, inspect coverage and the connected network. The Hungary eSIM coverage guide explains these variations.

Resetting network settings: use with care

A network-settings reset can remove saved WiFi passwords, VPN configurations and other network preferences. It should not be the first response to an APN issue. Record important settings and follow support guidance before using it.

Resetting network settings is not the same as deleting the eSIM, but device behaviour varies. Preserve the activation information and ask support if the consequences are unclear.

Safe final test

  1. Save the APN.
  2. Confirm the travel eSIM is the data line.
  3. Enable its required roaming setting.
  4. Set network selection to automatic.
  5. Toggle aeroplane mode for about 20 seconds.
  6. Disable WiFi and open a new webpage.
  7. Test outdoors if indoor signal is weak.

If the test fails, keep the profile installed and send the plan status, phone model, current network and screenshots to NoveSIM support.

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FAQ

What is the NoveSIM APN for Hungary?

The APN is data.esim when manual configuration is required. Leave username and password blank unless NoveSIM support provides different instructions.

Why can I not see the APN menu?

The phone may have received the settings automatically, the carrier profile may hide editing or device management may restrict it. Check whether data works before attempting a reset.

Should I use a Telekom, Yettel or One APN?

No, not for a NoveSIM profile unless NoveSIM support explicitly instructs you to do so. A partner network does not automatically mean its retail APN is correct.

Should I delete the eSIM if the APN does not work?

No. Keep the eSIM installed and contact support. Deleting a profile can make reinstallation difficult when the activation code is single-use.

Final Recommendation

Use data.esim only when the NoveSIM Hungary profile requires manual APN entry. Leave credentials and advanced fields at their defaults unless support says otherwise.

Select the correct data line, enable the required roaming and reconnect before deciding that the APN failed.

If data still does not work, preserve the eSIM and diagnose plan status, network registration and coverage. Do not delete a valid profile during routine troubleshooting.

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