Quick answer
On iPhone, go to Settings, then Cellular, then Add eSIM, then Use QR Code, and scan the QR from your email. Label the new line “Cambodia”, choose it for Cellular Data, and turn on Data Roaming for that line. Keep roaming off on your home line.
What do I need before installing?
Check these things first. They are the usual reasons an install fails.
- An eSIM-capable iPhone (XS, XR, or newer) that is not locked to your home carrier.
- A stable Wi-Fi connection.
- The QR code on another screen: open the email or your order page on a laptop or tablet, or print it.
- The right timing: plan days start when you install, so install the day before you fly or when you arrive.
How do I install the eSIM on iPhone?
Names can differ slightly between iOS versions and regions. Cellular is called Mobile Service or Mobile Data in some countries.
- 1Open Settings and tap Cellular.
- 2Tap Add eSIM, then Use QR Code.
- 3Scan the QR code from your email or order page.
- 4When asked, label the new line “Cambodia” and keep your home line as Primary.
- 5For Cellular Data choose Cambodia.
- 6Turn off Allow Cellular Data Switching, so data never falls back to your home line.
- 7Go to Cellular, tap the Cambodia line, and turn on Data Roaming.
What if I can’t scan the QR code?
Under Add eSIM, choose Enter Details Manually. The install code below the QR in your email starts with LPA:1$. Enter the part between the two $ signs as the SM-DP+ Address, and the part after the second $ as the Activation Code.
Each QR scans once and stays valid for 30 days, so do not delete the eSIM after installing it.
What do I do when I land in Cambodia?
Turn off airplane mode, go to Settings, then Cellular, and make sure the Cambodia line is on and selected for Cellular Data. Tap the Cambodia line and check that Data Roaming is on. The eSIM connects to Metfone as a roaming line, and there is no extra charge for roaming on it. Keep Data Roaming off on your home line so your carrier does not charge you.
Frequently asked questions
Will I keep my WhatsApp number?
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Yes. WhatsApp is tied to your account, not to the data line. It keeps working with your usual number while the Cambodia eSIM provides the data.
Does the eSIM give me a Cambodian phone number?
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No. It is data only, with no phone number, calls, or SMS. WhatsApp, Telegram, and FaceTime calls work over data, and your home SIM can stay on for SMS and bank codes.
Can I delete the eSIM after the trip?
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Yes, after the plan ends. Go to Settings, then Cellular, tap the Cambodia line, and choose Delete eSIM. Do not delete it during the trip, because the QR only scans once.