Didn't find what you want? Click here to try.
      All Destinations
      Explore All Destinations
      All Destinations

      Install iRoamly eSIM on Samsung Galaxy Z Fold4 Guide

      On THIS PAGE Jump to
      Author image
      Written by James Peterson
      Jun 12, 2026 • 5-min read

      One of the best things about eSIM technology is how convenient it makes travel connectivity.

      Instead of searching for a local SIM card after landing, you can prepare your mobile data directly on your Galaxy Z Fold4 before your trip even begins. There’s no need to open the SIM tray, replace cards, or wait for physical delivery.

      Compared to traditional SIM cards, eSIM gives you a faster and more flexible setup experience. You can store multiple eSIM profiles on the same device and switch between plans more easily when traveling between countries or regions.

      As long as you have a stable Wi-Fi connection and your iRoamly activation details ready, the installation process usually only takes a few minutes. This guide will walk you through how to install, activate, and configure your iRoamly eSIM on the Galaxy Z Fold4.

      Preparations Before Setting Up iRomly eSIM

      • Connect the Galaxy Z Fold4 to stable Wi-Fi before downloading the eSIM.

      • Confirm the phone is unlocked and eSIM-capable for your region and carrier firmware. If Add eSIM is missing, check for an EID and update One UI before retrying.

      • Keep your iRoamly QR code or manual activation details ready from your iRoamly order email, success page, or account page.

      • Install 1-2 days before travel only when your plan timing allows it, so you still have Wi-Fi available if setup needs a retry.

      • iRoamly eSIM validity starts from activation. For many iRoamly travel plans, activation happens when the eSIM connects to a supported destination network, but you should check the exact activation policy in the current plan details.

      • Do not delete an installed iRoamly eSIM casually. Most travel eSIM profiles cannot simply be reinstalled from the same QR code after removal.

      • iRoamly eSIM plans may not include voice calls or SMS. Voice/SMS availability varies by plan, so check your specific plan before relying on calls or texts.

      Shared Setup Steps for Both Methods

      1. Unfold the Galaxy Z Fold4, open Settings, and tap Connections in the left Settings pane. The Connections page should appear on the right side of the screen.

      Connections Z Fold4

      1. Tap SIM manager on the Connections page. The Galaxy Z Fold4 should show SIM cards, eSIMs, preferred SIM controls, and more SIM settings.

      SIM Manager Z Fold4

      1. Tap Add eSIM under the eSIMs section. The Add eSIM setup choices should open.

      Add eSIM Z Fold4

      Method 1: Install the iRoamly eSIM by Scanning a QR Code

      1. Tap Scan QR code on the Add eSIM page. The Galaxy Z Fold4 should open Samsung's full-screen QR scanner.

      Scan QR Code Z Fold4

      1. Point the scanner at the iRoamly QR code and keep the whole code inside the corner brackets. The screen should say Scan the QR code you got from your service provider.

      Place the QR Code Z Fold4

      1. Tap Add when the phone shows Add iRoamly travel eSIM? Keep Wi-Fi connected while the eSIM profile downloads.

      Add Z Fold4

      1. Tap Done when the screen confirms that iRoamly travel eSIM was added. Restart only if Samsung or your carrier prompt asks you to restart.

      Done Z Fold4

      Method 2: Install the iRoamly eSIM by Manual Entry

      1. Tap Scan QR code on the Add eSIM page. Samsung places the manual-entry option on the QR scanner screen, so this tap is still required.

      Scan QR Code Z Fold4

      1. Tap Enter activation code near the bottom of the QR scanner page. The manual activation page should open.

      Enter Activation Z Fold4

      1. Paste the complete iRoamly activation string into Activation code, then tap Add or Connect. On Samsung One UI, this manual page uses one full Activation code field, often in an Android format such as LPA:1$SM-DP+ Address$Activation Code, instead of separate SM-DP+ Address and Activation Code fields.

      Activation Code Z Fold4

      1. Tap Add when the phone shows Add iRoamly travel eSIM? Keep the Galaxy Z Fold4 on Wi-Fi until the eSIM profile finishes downloading.

      Add Z Fold4

      1. Tap Done after the phone confirms that iRoamly travel eSIM was added. Restart only if the phone asks for it.

      Done Z Fold4

      How to Confirm the iRoamly eSIM Was Installed

      1. Open Settings > Connections > SIM manager and confirm that iRoamly travel eSIM appears under eSIMs with its switch turned on. This confirms the profile is installed and available on the Galaxy Z Fold4.

      Turn On Z Fold4

      Set Up the iRoamly eSIM for Travel Data

      1. In Settings > Connections > SIM manager, tap Mobile data, choose iRoamly travel eSIM, then tap Done. Leave calls and messages on your primary SIM unless your iRoamly plan specifically includes those services.

      Select Z Fold4

      1. Go to Settings > Connections > Mobile networks, keep Mobile data on, and turn on Data roaming if your iRoamly plan or destination instructions require roaming.

      Data Roaming Z Fold4

      1. Return to Settings > Connections > SIM manager and keep Data switching and backup calling off unless you intentionally want another SIM to take over data. Keeping it off helps prevent unexpected primary-SIM data use while traveling.

      Data Switching Z Fold4

      Troubleshooting

      • No Add eSIM: update One UI, confirm the phone is unlocked, check that the Galaxy Z Fold4 shows an EID, and verify that your regional model and carrier firmware support eSIM.

      • QR code will not scan: clean the camera lens, increase brightness on the screen showing the QR code, keep the full code inside the brackets, or use Enter activation code.

      • QR code already used: check whether the iRoamly eSIM is already installed in SIM manager. Do not delete and retry repeatedly; contact iRoamly support if the profile was removed or the install failed.

      • Manual code does not work: paste the full Samsung activation-code string into the single Activation code field. Do not split the SM-DP+ address and activation code unless iRoamly explicitly gives a Samsung-ready format.

      • Installed but no data: select iRoamly travel eSIM for Mobile data, turn on Data roaming when required, restart the phone, and confirm the plan covers the country or region you are in.

      • Activation stays pending: installation and network activation are not always the same moment. The eSIM may finish activation only after it reaches a supported destination network.

      • Unexpected primary-SIM charges: keep Mobile data assigned to iRoamly, leave data switching off, and consider disabling data on your primary SIM while abroad.

      • Voice or SMS does not work: check the specific iRoamly plan. Many travel eSIM packages are data-only and do not include a normal phone number, voice calls, or SMS.

      • Region or carrier limitations appear: Samsung eSIM behavior can vary by country, carrier firmware, and model variant even when the phone name is the same.

      Conclusion

      Now you know how to install and activate iRoamly eSIM on your Galaxy Z Fold4 using either a QR code or manual setup. Compared to physical SIM cards, eSIM offers a more streamlined experience by letting you download and manage mobile plans digitally without handling extra cards or tools.

      You can also continue using your regular number while using iRoamly eSIM for travel data, which makes staying connected much more convenient during international trips. Once your settings are configured correctly, you’ll be ready to use mobile data more easily and avoid the hassle of swapping SIM cards while traveling.