eSIM QR Code on the Same Phone? Three Ways to Install It

By ElloSim editorial team13 November 20266 min read

Gouache painting of a phone and a laptop on a sunlit hotel desk by a window, a dotted coral arc of light bridging their blank glowing screens beside a room key and a coffee cup.

You open your order email on your phone, ready to set up the travel eSIM, and there it is: a QR code. Your phone asks you to point its camera at it. The camera is on the back. The code is on the front.

That can happen when you buy on the move with no laptop nearby. There are alternatives to pointing a camera at the code.

Short answer

You have three options to try:

Tap to install on a recent iPhone. On iOS 17.4 or later, you can touch and hold a QR code shown in the default email app or browser, then choose Add eSIM. If your order page provides an Install on iPhone button, that is another same-phone shortcut.
Enter the details by hand, on iPhone or Android. If your order page provides manual installation details, copy them into your phone's manual entry screen.
Show the code on a second screen. Use a laptop, a tablet, a printout or a travel companion's phone, then scan it with yours.

Whichever you pick, connect to stable Wi-Fi first, check when your plan starts, and keep the code private. It can only be installed on one device.

Two checks before you begin

Know what starts your plan. Installing a plan and starting its days are not always the same event. Many plans start when the phone first connects in the destination, but some start at installation or at purchase. The plan details tell you which. Our guide to when to activate a travel eSIM covers the timing in more depth.

Use a connection that will not drop. Your phone downloads the eSIM during setup. Apple's eSIM setup troubleshooting page lists a Wi-Fi network or hotspot as a requirement, with an exception for eSIM-only iPhones in some regions. A café connection that keeps asking you to sign in is a poor place to start.

If you have not yet confirmed that your phone supports eSIM and is unlocked, do that first with our compatibility and unlock guide.

Flying to Japan? The Japan preflight guide combines installation checks with arrival preparation.

Route 1: install straight from the screen on iPhone

Apple's Set up eSIM on iPhone guide describes a same-phone option for iOS 17.4 or later. When the QR code appears in the default email app or browser, touch and hold it, then tap Add eSIM. Follow the prompts to add the cellular plan.

If your order page provides an Install on iPhone button, it offers a similar shortcut. Open the order page on the iPhone that will hold the eSIM, and follow the order page's instructions for that button. On ElloSim orders, the email's install button opens the order page and asks you to use Safari.

If the button is missing or nothing happens, you are not stuck. Move on to Route 2, or contact support@ellosim.com with your order ID.

Route 2: type in the details yourself

The QR code and the manual details are two forms of the same installation information. If your order page provides manual installation details, it will show them with the labels to use. On many orders that means an SM-DP+ address and an activation code, often with copy buttons. If you cannot find manual details on your order, contact support with your order ID.

The SM-DP+ address looks a little like a web address, but it is not a website to visit. It is the eSIM server your phone contacts during setup.

On iPhone, go to Settings, then Cellular or Mobile Service, then Add eSIM, then Use QR Code. Apple's iPhone User Guide notes you may need to tap Other Options first, and that you can enter the details manually instead of scanning.

On Android, the menu names vary by phone. ElloSim's installation guide shows the usual paths for Samsung Galaxy and Google Pixel. Look for the manual entry option on the screen that asks for a QR code. Use the fields and format shown in your order’s manual installation instructions; some Android screens use a combined activation string rather than separate boxes.

A few habits make this smoother:

Copy one value at a time, switch to Settings, paste, then go back for the next.
Paste rather than retype. A single wrong character is enough to fail.
Check that no space crept in at the start or end.
Match each value to the field your order instructions name.

Route 3: borrow a second screen

The classic method still works well. Open the order email or order page on a laptop, tablet or printout, then scan it with the phone that will use the eSIM.

A travel companion's phone can act as the screen. Ask them to display the code, not scan it. An ElloSim QR code can only be used by one device, and once an eSIM is installed it cannot be moved to another phone.

Turn the brightness up, keep the whole code in view and tilt away from reflections if the scan hesitates.

Mistakes that turn a quick install into a support ticket

Mistake	Why it causes trouble	Do this instead
Scanning with a friend's phone "just to check"	The code can only be installed on one device	Ask them to display it, never scan it
Deleting and retrying after a setup that seemed to stall	A deleted eSIM is not guaranteed to reinstall	Check whether the line appeared, then contact support
Starting on Wi-Fi that keeps dropping	The download can be interrupted	Move to a stable connection first
Posting the code where others can see it	Exposing the code risks an unauthorized installation	Share it only with the person it is for
Installing early on a plan that starts at installation	Its days may begin before your trip	Read the start rule before you begin

On deleting: Apple advises against erasing an eSIM as a troubleshooting step unless your provider tells you to. That applies here too.

After it installs

Give the new line a name you will recognise, such as "Travel". If you keep your home line active for calls or texts, check your carrier’s roaming charges; selecting travel data does not prevent those charges.

The ElloSim FAQ explains how to check the right eSIM installed. Your order and confirmation email show its ICCID. On iPhone, go to Settings, General, About, and look for a line whose ICCID matches the one in your order. Line names are labels you chose, so the matching ICCID is what counts.

When you land, choose the travel line for mobile data and turn on data roaming for that line, as the installation guide describes. If your phone says the QR code has already been used, email support@ellosim.com with your order ID rather than trying again.

If everything installed but nothing loads at your destination, work through our installed but no internet checklist.

Frequently asked questions

Can I install the eSIM from the QR code on the same phone?

On an iPhone with iOS 17.4 or later, touching and holding the code in the default email app or browser can offer Add eSIM. Otherwise, use the manual details from your order or a second screen.

Can I save the QR code as a picture and install from that?

Use the installation options your device supports. The methods above avoid relying on a saved-image feature, and a saved code should be kept out of shared albums and group chats.

Do I need both the QR code and the activation code?

No. They carry the same installation information. Use one route or the other.

I installed it on the wrong phone. Can I move it?

No. Once installed, an ElloSim eSIM cannot be moved to a different phone. Contact support with your order ID before deleting anything. Our guide to moving a travel eSIM to a new phone explains why.

Will installing now start my days?

That depends on the plan. Check its start rule in the plan details or your order email before you install.

Ready when you are

Pick the route that matches what you have with you: a recent iPhone, the manual details from your order, or a second screen. Then follow ElloSim's step-by-step installation guide for your phone, and keep the order email handy until you have landed and connected.

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