The Galaxy A23 5G is a practical travel phone, but eSIM support on this model is not universal. Some regional Galaxy A23 5G versions are physical-SIM-only, while eSIM setup appears only on models and carrier firmware that show Add eSIM inside Samsung’s SIM manager.
This guide uses the current Samsung One UI path: Settings > Connections > SIM manager > Add eSIM. If your Galaxy A23 5G does not show Add eSIM, your exact model, region, carrier lock, or firmware may not support eSIM installation.
You will learn both iRoamly travel eSIM setup methods: scanning the QR code and entering the activation code manually. The QR method is usually fastest, while manual entry is useful if the QR code is on the same phone, the camera cannot scan it, or you are copying the details from your iRoamly account or email.
Preparations Before Setting Up iRomly eSIM
Connect the Galaxy A23 5G to stable Wi-Fi.
Confirm the phone is unlocked and that Settings > Connections > SIM manager shows Add eSIM.
Keep your iRoamly QR code or manual activation details ready.
Do not delete an installed eSIM casually. Many travel eSIMs cannot simply be reinstalled after removal.
Install the eSIM 1-2 days before travel when appropriate, but check the plan rules first.
iRoamly eSIM validity starts from activation. Check your specific iRoamly plan for the exact activation trigger.
iRoamly eSIM plans may not include voice calls or SMS. Voice/SMS support varies by plan, so check the plan details before relying on it.
Shared Setup Steps
Open Settings, then tap Connections. You should see Samsung’s connection settings page.
Tap SIM manager. This opens the page where Samsung lists physical SIMs, eSIMs, and preferred SIM settings.
Tap Add eSIM. If this option is missing, stop here and check the troubleshooting section before buying or installing an eSIM.
Method 1: Install the iRoamly eSIM by Scanning a QR Code
On the Add eSIM screen, tap Scan QR code. The phone will open the eSIM QR scanner.
Point the camera at the iRoamly QR code from your order email or iRoamly account. Keep the code flat and fully inside the scanner frame until the phone detects it.
When the iRoamly travel eSIM profile appears, tap Add. Keep Wi-Fi connected while the eSIM downloads.
Method 2: Install the iRoamly eSIM by Manual Entry
Open Settings, tap Connections, tap SIM manager, then tap Add eSIM. This is the same entry path used for QR setup.
Tap SIM manager, then confirm that the Add eSIM option is available under the eSIM section.
Tap Add eSIM. The phone will show the available eSIM setup options.
Tap Scan QR code, then tap Enter activation code on the QR scanner screen. On Samsung One UI, manual setup commonly uses one complete activation code string rather than separate SM-DP+ Address and Activation Code fields.
Tap the Activation code field and enter the complete iRoamly activation code exactly as provided. If iRoamly gives you SM-DP+ and activation details separately, combine or enter them only in the format shown by your Samsung screen or iRoamly instructions.
Tap Connect. Keep Wi-Fi on while the phone contacts the eSIM server and downloads the iRoamly profile.
How to Confirm the iRoamly eSIM Was Installed
Go to Settings > Connections > SIM manager and check the eSIMs section. The installed line should appear as iRoamly Travel eSIM or a similar travel-profile name, and its switch should be on.
Set Up the iRoamly eSIM for Travel Data
In Settings > Connections > SIM manager, tap Mobile data under Preferred SIMs.
Select iRoamly Travel eSIM for mobile data. This prevents the phone from using your primary SIM for travel data by mistake.
Open the mobile network settings for the iRoamly line and turn on Data roaming if your iRoamly plan or destination requires roaming. Leave your primary SIM’s data roaming off if you want to avoid unexpected charges.
Troubleshooting
If Add eSIM is missing, your Galaxy A23 5G variant may not support eSIM, the phone may be carrier-locked, or the firmware may hide eSIM. Update the phone, check for an EID, and confirm support with Samsung or your carrier.
If the QR code fails, use Enter activation code, keep Wi-Fi connected, increase screen brightness on the device showing the QR code, and make sure the QR code has not already been used.
If the eSIM installs but has no data, select iRoamly Travel eSIM for Mobile data, enable Data roaming when required, restart the phone, and confirm your iRoamly plan covers the destination.
If activation stays pending, wait until you are in the covered destination network if the plan activates on network connection, then restart the phone and try again.
If you deleted the eSIM, do not assume it can be installed again with the same QR code. Contact iRoamly support before attempting another installation.
If calls or SMS do not work, check the iRoamly plan details. Many travel eSIM plans are data-only.
Conclusion
For the Galaxy A23 5G, the most important step is confirming that your exact phone shows Add eSIM in Samsung SIM manager; without that option, this model may not be able to install an iRoamly travel eSIM.
If the option is available, QR setup is the quickest path, while manual entry gives you a reliable backup using Samsung’s complete activation-code field.
After installation, confirm the iRoamly line appears in SIM manager, set it as the phone’s Mobile data SIM, and turn on Data roaming only where your iRoamly plan requires it.