The Oppo Find X3 keyword can refer to the Find X3 family; this guide uses the Oppo Find X3 Pro / ColorOS 11.2 setup path as the safest documented reference for the family. OPPO lists eSIM support as carrier-dependent, so users should confirm that their exact regional model, software build, and carrier settings show the eSIM menu before starting.
For travelers, an iRoamly travel eSIM lets the Oppo Find X3 use mobile data abroad without swapping a physical SIM. The setup is normally done from Settings > Mobile network > eSIM, with either a QR code or manual activation details from the iRoamly order page or email.
This guide covers both installation methods, how to confirm that the iRoamly eSIM has been added, and how to choose it for mobile data. Menu labels may vary slightly by ColorOS version, region, or carrier firmware, but the tap targets below use the verified OPPO-style Mobile network and eSIM wording.
Before You Set Up Your iRoamly eSIM
Connect the Oppo Find X3 to stable Wi-Fi before installation. The phone needs internet access to download the eSIM profile.
Confirm that the phone is unlocked and that your exact Oppo Find X3 / Find X3 Pro variant supports eSIM with your carrier firmware.
Keep the iRoamly QR code open on another screen, printed copy, or saved in another device. If you choose manual setup, keep the SM-DP+ Address, Activation Code, and optional Confirmation Code ready.
Install the iRoamly eSIM 1-2 days before travel when possible, but check the plan details first. iRoamly plan validity starts from activation, and the exact activation trigger can depend on the specific plan.
Do not delete the iRoamly eSIM after installation unless iRoamly support tells you to. Many travel eSIM profiles cannot simply be reinstalled after removal.
Check the plan page for voice calls and SMS. iRoamly travel eSIM plans may be data-only, and voice/SMS availability varies by plan.
Method 1: Install eSIM by Scanning a QR Code
Open Settings on the Oppo Find X3, then tap Mobile network.
You should see the ColorOS mobile network area where SIM and eSIM settings are managed.

Tap eSIM on the Mobile network screen.
The phone should open the eSIM management area. If eSIM is missing, your regional model, carrier firmware, or software build may not support eSIM.

Tap Add eSIM.
ColorOS should open the setup flow for adding a new eSIM profile.

Choose the QR-code scan option and point the camera at the iRoamly eSIM QR code.
Keep the QR code flat and fully visible. Do not scan a QR code that has already been used on another phone.

Review the iRoamly eSIM profile details, then tap Add or Download.
Wait while the phone downloads the eSIM profile. Keep Wi-Fi connected until the process finishes.

When ColorOS says the eSIM has been added, leave the iRoamly eSIM turned on unless you are waiting to use it at your destination.
The eSIM should now appear in the phone's eSIM or SIM management area.

Method 2: Install eSIM Manually
Open Settings on the Oppo Find X3, then tap Mobile network.
This is the same starting point used for QR-code setup.

Tap eSIM.
The eSIM menu should open. If you do not see it, update ColorOS if available and confirm that your model and carrier support eSIM.

Tap Add eSIM.
ColorOS should open the add-eSIM setup flow.

On the QR-code screen, tap Enter manually or Enter details manually.
Use this option when the QR code cannot be scanned or when iRoamly gives you manual activation details.

Enter the iRoamly SM-DP+ Address, Activation Code, and Confirmation Code if iRoamly provides one, then tap Continue.
Check every character before continuing. Do not add spaces unless the iRoamly instructions include them.

Review the profile details, then tap Add or Download.
Keep the phone connected to Wi-Fi until the eSIM profile finishes downloading.

When the installation finishes, keep the iRoamly eSIM available in the eSIM menu.
The profile should appear as an installed eSIM line, ready for mobile data setup.

How to Confirm Your iRoamly eSIM Is Installed
Go to Settings > Mobile network > eSIM.
Look for an installed line named iRoamly, Travel eSIM, or a similar label from the eSIM profile.

Tap the iRoamly eSIM line and confirm that the eSIM is turned on.
The profile should show as installed or active. If the plan supports only data, do not expect voice calling or SMS controls to work through that line.

When you are in the destination covered by the plan, watch for signal bars or a mobile data indicator after selecting the iRoamly eSIM for data.
If the phone shows no service, wait a few minutes, restart the phone, and check the data roaming setting.

Configure eSIM for Mobile Data
Open Settings > Mobile network, then tap the mobile data or preferred data SIM setting.
This is where ColorOS chooses which SIM or eSIM uses mobile data.

Select the iRoamly eSIM as the preferred SIM for mobile data.
Keep your primary SIM available for calls or messages only if you want to avoid roaming charges from that line.

Turn on Data roaming for the iRoamly eSIM if your iRoamly plan or destination instructions require it.
Travel eSIM data often needs roaming enabled because the plan connects through partner networks in the destination country.

Open a browser or maps app and test mobile data while Wi-Fi is off.
If pages load, the Oppo Find X3 is using the iRoamly travel eSIM for data.
Troubleshooting
Add eSIM is missing: confirm that your exact Oppo Find X3 / Find X3 Pro variant supports eSIM, update ColorOS if available, and check whether your carrier firmware disables the menu.
QR code will not scan: increase brightness on the other screen, clean the camera lens, keep the QR code flat, or switch to manual entry with the SM-DP+ Address and Activation Code.
QR code already used: do not keep retrying on different phones. Contact iRoamly support because many eSIM QR codes are single-use.
Activation fails: confirm Wi-Fi is working, check that the activation details match the iRoamly order exactly, restart the phone, then try again.
The eSIM appears but there is no data: select the iRoamly eSIM for mobile data, enable data roaming if required, turn Wi-Fi off for testing, and confirm that you are in a covered destination.
The eSIM is stuck as pending: wait several minutes, keep the phone online, restart the phone, and avoid deleting the profile unless iRoamly support asks you to.
Calls or SMS do not work: check the iRoamly plan details. Many travel eSIM plans are for mobile data, and voice/SMS support is not guaranteed.
Conclusion
Now that your iRoamly eSIM has been added successfully, your Oppo Find X3 is prepared for your upcoming trip. Once your plan activates according to its terms, you'll be able to connect to supported mobile networks and start using mobile data without additional setup.
From checking maps and booking transportation to browsing the web and sharing travel updates, your travel eSIM helps you stay connected wherever your itinerary takes you while keeping your primary SIM available if needed.