Traveller configuring a smartphone along Split’s waterfront promenade.

Croatia eSIM on iPhone: Install and Set Up Data

NoveSIM | Last updated on: September 30, 2026 | 8 minute read

A Croatia eSIM can be installed on a compatible unlocked iPhone through Settings → Cellular or Mobile Service → Add eSIM. Scan the QR code, label the plan clearly and wait to use it according to the package’s activation instructions.

After arriving in Croatia, select the travel eSIM for cellular data, turn on data roaming for that line and turn off Allow Cellular Data Switching. The home number can remain available separately, but its conventional calls and SMS still follow the home provider’s roaming charges.

NoveSIM travel eSIMs are data-only. They do not add a Croatian phone number, traditional calls or SMS, while iMessage, FaceTime, WhatsApp, maps and email can use the mobile-data connection.

Quick answer: Check Settings → General → About for an EID and No SIM restrictions beside Carrier Lock. Then open Settings → Cellular/Mobile Service → Add eSIM → Use QR Code to install the Croatia eSIM. In Croatia, turn on the line, choose it under Cellular Data, enable Data Roaming for that eSIM and disable Allow Cellular Data Switching.

Top Croatia eSIMs

Check iPhone Compatibility and Carrier Lock

  1. Open Settings.
  2. Tap General.
  3. Select About.
  4. Look for an EID, which is associated with eSIM capability.
  5. Find Carrier Lock.
  6. Confirm that it says No SIM restrictions.

eSIM availability can vary by iPhone model and sales region. Physical-SIM configuration also differs between markets. Confirm the exact model rather than assuming that every iPhone with the same commercial name has identical SIM support.

If Carrier Lock shows a restriction, only the carrier that locked the iPhone can unlock it. Installing a travel profile does not bypass that restriction.

Prepare before Adding the eSIM

  • Update iOS while reliable WiFi is available.
  • Charge the iPhone sufficiently for setup and testing.
  • Display the QR code on a second screen or keep a clear printed copy.
  • Keep manual installation details available as a backup.
  • Read the plan’s activation and validity instructions.
  • Store the QR code privately because it belongs to the purchased profile.

Do not scan the code with another phone as a test. The eSIM should be installed on the iPhone that will use it, and the QR code may permit only one installation.

Install the Croatia eSIM with a QR Code

  1. Open Settings.
  2. Tap Cellular, Mobile Data or Mobile Service.
  3. Select Add eSIM or Set Up Cellular.
  4. Tap Use QR Code.
  5. Position the code inside the camera frame.
  6. Tap Continue when the cellular plan is detected.
  7. Choose Add Cellular Plan or the equivalent confirmation.
  8. Wait until the profile appears under the iPhone’s SIMs.

Apple also supports opening some QR codes directly from a compatible email or browser version of iOS. Use the method shown by the current phone, but do not share the code or upload it to a public service.

Enter eSIM Details Manually

If scanning is not possible and the NoveSIM order supplies manual details:

  1. Open Settings → Cellular/Mobile Service → Add eSIM.
  2. Choose Use QR Code and then Enter Details Manually when available.
  3. Enter the SM-DP+ address exactly as supplied.
  4. Enter the activation code exactly as supplied.
  5. Add a confirmation code only if one was provided.
  6. Approve the plan download and wait for the profile to appear.

Do not substitute values from another order or carrier. Manual installation details are profile-specific.

Label the Two iPhone Lines Clearly

Use labels such as Home and Croatia Data. Clear labels prevent the wrong line from being selected later for cellular data or roaming.

Open the new profile in the Cellular or Mobile Service menu, tap its label and choose a custom name. The label will appear in line-selection menus, call controls and data settings.

Choose the Cellular Data Line

  1. Open Settings → Cellular/Mobile Service.
  2. Tap Cellular Data or Mobile Data.
  3. Select Croatia Data.
  4. Turn Allow Cellular Data Switching off.

Turning data switching off reduces the risk that iPhone will move data to the home SIM when the travel signal changes. The home line can remain enabled for its number without becoming the mobile-data line.

Choose the Default Voice Line

The NoveSIM profile is data-only, so it should not be expected to provide conventional voice calls. If the home line remains active, keep it as the default voice line only when you understand its Croatia roaming charges.

iPhone can remember which line was used for a contact. Check the displayed line before placing a call. A data-based call through WhatsApp, FaceTime or another internet service uses the selected cellular-data connection instead.

iMessage, FaceTime and the Existing Number

Installing a travel eSIM does not automatically replace the phone number or Apple Account used by iMessage and FaceTime. These services can use mobile data from the Croatia eSIM while retaining their existing account configuration.

Avoid changing Send & Receive settings merely because the data line has changed. If a prompt appears during setup, read which line or account it refers to before accepting.

Activate the eSIM after Arriving in Croatia

  1. Turn off airplane mode.
  2. Open Settings → Cellular/Mobile Service.
  3. Select the Croatia eSIM.
  4. Enable Turn On This Line.
  5. Enable Data Roaming for the travel profile.
  6. Confirm that it remains selected under Cellular Data.
  7. Keep Allow Cellular Data Switching off.
  8. Leave Network Selection automatic.
  9. Wait several minutes for first registration.

The package’s activation event and validity rules can vary. Follow the specific plan instructions rather than enabling the line early for an unnecessary test. The Croatia activation guide explains the distinction between installation and service activation.

Test Mobile Data without WiFi

  1. Switch WiFi off completely.
  2. Check that the Croatia eSIM is selected under Cellular Data.
  3. Open a lightweight webpage.
  4. Refresh a map or send a message through a data app.
  5. Open the cellular usage view and confirm activity on the intended line when available.

A signal icon does not prove which connection carried the test. Disabling WiFi and checking the selected data line prevents airport or hotel WiFi from masking a cellular setup problem.

5G Auto, LTE and Battery Use

If the iPhone and plan support 5G, use 5G Auto as the normal travel setting. Apple states that iPhone can switch to LTE when 5G does not provide a noticeably better experience, helping preserve battery.

A stable LTE or 4G connection is adequate for maps, messages, bookings and many video calls. Do not force 5G On merely to keep a 5G icon in areas with variable coverage. Review the Croatia 5G guide for plan and coverage requirements.

Personal Hotspot on iPhone

Personal Hotspot availability depends on the plan and iPhone settings. Confirm that tethering is supported before relying on it for a laptop or another traveller.

Disconnect unused devices, pause computer updates and monitor consumption. Hotspot use, charging and weak signal can increase battery use and heat, so keep the iPhone ventilated.

APN Settings on iPhone

The NoveSIM APN is data.esim. It is normally configured automatically. Check it only if the eSIM has registered but mobile data does not work.

When visible, the APN menu can appear under Settings → Cellular/Mobile Service → Croatia Data → Cellular Data Network. Some profiles hide manual APN editing. Do not install an unrelated configuration profile or use a Croatian retail operator’s APN.

The Croatia APN guide explains when the setting should remain unchanged.

iPhone Troubleshooting without Removing the eSIM

  1. Turn WiFi off and confirm that the Croatia line is enabled.
  2. Verify that it is selected for Cellular Data.
  3. Check Data Roaming on the travel eSIM.
  4. Confirm Allow Cellular Data Switching is off.
  5. Toggle airplane mode once and wait for registration.
  6. Restart the iPhone once.
  7. Keep Network Selection automatic before testing a supported partner manually.
  8. Check the APN only if data remains unavailable.

Do not reset all network settings as an early step because it removes saved WiFi and other network preferences. Do not delete the installed eSIM unless NoveSIM support specifically instructs you to do so.

If data works but is slow, use the Croatia slow-data troubleshooting guide instead of reinstalling the profile.

Related Articles

FAQ

How do I check whether my iPhone is unlocked for a Croatia eSIM?

Open Settings, General and About. An unlocked iPhone normally shows “No SIM restrictions” beside Carrier Lock.

Should Allow Cellular Data Switching be on in Croatia?

Keep it off when the travel eSIM should provide all mobile data. This reduces the risk that iPhone will use the home SIM when the travel signal changes.

Can iMessage keep my normal number while the eSIM supplies data?

Yes, in many dual-SIM configurations. Changing the cellular-data line does not automatically replace the existing iMessage or FaceTime account settings.

Should I delete a Croatia eSIM that will not connect?

No. Check the active line, roaming, data switching, network registration and APN first. Delete only when NoveSIM support explicitly instructs you to do so.

Final Recommendation

Use a Croatia eSIM on iPhone only after checking the exact model, EID and Carrier Lock status. Install through Add eSIM, label the profile and follow the plan’s activation timing.

In Croatia, select the travel profile for Cellular Data, enable roaming on that line and disable Allow Cellular Data Switching. Keep the home line active only for the services whose roaming cost you understand.

Test with WiFi off, use automatic network selection and preserve the installed eSIM during troubleshooting. These settings keep travel data on the intended line throughout the Croatia trip.

←
Previous Croatia eSIM on Android: Samsung and Pixel Setup
Next Croatia eSIM APN Settings: Use data.esim Correctly
→
Scroll to Top