Step-by-Step Guide to Install eSIM on iPhone 16 Pro

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Written by James Peterson
Apr 24, 2026 3-min read

eSIM technology has made mobile connectivity more flexible and efficient by allowing users to activate a cellular plan digitally, without needing a physical SIM card.

On the iPhone 16 Pro, this feature is fully supported and easy to use, making it simple to add and manage multiple plans directly from your device.

In this guide, we’ll walk you through the step-by-step process to install and activate your iRoamly eSIM on iPhone 16 Pro.

Preparations Before Setting Up iRomly eSIM

Before starting, ensure you have the following:

  • A stable internet connection (Wi-Fi or cellular)

  • A valid eSIM QR code or manual activation details (SM-DP+ address and activation code) provided by your carrier

  • Your iPhone 16 Pro powered on and unlocked

  • The device updated to the latest iOS version (recommended for compatibility)

Method 1: Install eSIM via QR Code Scanning

Step 1: Open Cellular Settings

  • Tap Settings

Settings 16 Pro

  • Scroll down and tap Cellular (On some devices, this may appear as Mobile Service or Mobile Data)

Cellular 16 Pro

Step 2: Add eSIM

  • Tap Add eSIM if you already have an existing cellular plan, or tap Set Up Cellular if this is your first plan

Add eSIM 16 Pro

Step 3: Choose QR Code Option

  • Tap Use QR Code

Use QR Code 16 Pro

Step 4: Scan the QR Code

  • The camera will open automatically

  • Position the QR code within the frame

Place the QR Code Here 16 Pro

  • Wait for the system to recognize it

Step 5: Confirm eSIM Activation

  • When prompted, tap Continue

Continue 16 Pro

  • Then tap Add Cellular Plan

Step 6: Label the eSIM (if prompted)

  • Select a label (e.g., Primary, Secondary, Business)

  • Tap Continue

Step 7: Set Default Line Preferences

Select default lines for:

  • Voice calls

  • iMessage & FaceTime

  • Cellular data

Tap Continue after each selection

Method 2: Install eSIM via Manual Input

Step 1: Open Cellular Settings

  • Tap Settings

Settings 16 Pro

  • Scroll down and tap Cellular (On some devices, this may appear as Mobile Service or Mobile Data)

Cellular 16 Pro

Step 2: Add eSIM

  • Tap Add eSIM if you already have an existing cellular plan, or tap Set Up Cellular if this is your first plan

Add eSIM 16 Pro

Step 3: Select Manual Entry Option

  • Tap Use QR Code

Use QR Code 16 Pro

  • On the next screen, tap Enter Details Manually

Enter Details Manually 16 Pro

Step 4: Enter SM-DP+ Address

  • In the SM-DP+ Address field, type the address provided by your carrier

SM-DP Address 16 Pro

  • In the Activation Code field, enter the code exactly as provided

  • Tap Next

Next 16 Pro

Step 5: Confirm Installation

  • Tap Add Cellular Plan when prompted

Step 6: Label the eSIM

  • Select a label (e.g., Primary, Secondary, Business)

  • Tap Continue

Step 7: Configure Default Line Settings

Select default lines for:

  • Voice calls

  • iMessage & FaceTime

  • Cellular data

Tap Continue after each selection

How to Confirm Successful eSIM Installation

After completing either method, verify installation using the following checks:

Check 1: Cellular Plan Appears

  • Go to Settings → Cellular (On some devices, this may appear as Mobile Service or Mobile Data)

Cellular 16 Pro

  • Confirm your new plan is listed under SIMs

Check 2: Signal Indicator

  • Look at the top-right corner of the screen

  • Ensure signal bars appear for the new line

Check 3: Enable the Line

  • Path: Settings → Cellular (On some devices, this may appear as Mobile Service or Mobile Data) → Select the new eSIM

  • Ensure Turn On This Line is enabled (toggle is green)

Check 4: Test Connectivity

  • Open Safari

  • Load a webpage using cellular data (disable Wi-Fi if necessary)

Conclusion

Once the setup is complete, iRoamly eSIM will provide a stable and reliable data connection on your iPhone 16 Pro.

Whether you're browsing the web, using navigation apps, or staying in touch online, you can expect a smooth experience.

If you need to adjust any settings, you can easily manage them directly on your device to ensure your connection continues to meet your needs.