How to Install (Activate) eSIM in Vietnam

How to activate eSIM on iPhone, Samsung, and Google Pixel phones is easy. Everything starts with an eSIM QR Code, a compatible device, and a Wi-Fi connection, and then 2-3 minutes of setup. Let's figure it out with us now.

What to Prepare Before You Start

After placing an order for an eSIM, you will receive a QR Code, SM-DP+ Address & Activation Code. The thing you need to do now is to set it up on your device and activate it for usage.

Don't know how to start? 👉 We are here to help.

  • ✓ eSIM QR Code or SM-DP+ Address & Activation Code
  • ✓ A compatible device (iPhone, Samsung, Google Pixel, etc.)
  • ✓ Wi-Fi connection for setup

How to Set Up and Activate Your eSIM

In this post, we will guide you through steps to set up and activate a data eSIM (including the eSIM for Vietnam provided by vietnamesim.vn) on your device.

  • 1 Open Settings on your device
  • 2 Navigate to Cellular or Mobile Data settings
  • 3 Scan the QR Code or enter the activation code manually
  • 4 Follow the on-screen instructions to complete activation

Ready to Get Started?

Get your Vietnam eSIM now and enjoy seamless connectivity throughout your trip.

Get Your Vietnam eSIM

Good to know

  • Basically, an eSIM can be installed automatically by scanning the QR Code or manually. Although we guide you through both, the former is highly recommended.
  • For a travel eSIM, you should install the eSIM on your device before departure and activate it upon landing in your destination.
  • The setup will take you around 2 or 3 minutes only.
  • If you are using a data eSIM for Vietnam, and you use a 5G smartphone, please disable 5G on the eSIM and switch to 4G / LTE.
  • Turn off your Cellular Data Switch to avoid the roaming fee.

1. What to prepare before starting eSIM installation and activation?

To get started with the eSIM installation on your device, please make sure that the following items are ready:

An eSIM-compatible and carrier-unlocked device

A stable Wi-Fi connection (not mobile data of another phone)

An eSIM QR code for scanning

Tips for installation esim

  • Print your QR code, or borrow someone’s device to keep your eSIM QR code if you have no second device (another phone, desktop, laptop, etc.) to keep it).
  • Take note of your SM-DP + Address & Activation code somewhere on your device for easy manual setup by copying and pasting if you cannot print your QR code or have no second device to keep it, or just in case your scanning fails and you need to set up your eSIM manually.

2. How to activate eSIM in Vietnam

Every data eSIM will go through 2 steps to be ready in your device and data usage. In this section, we will guide you through how to activate eSIM on iPhone, Samsung phone, and Google phone.

The wording may be slightly different depending on your device. So, in case you have difficulty installing your eSIM, please contact your eSIM provider.

How to activate eSIM on iPhone

Check the eSIM iPhone compatibility list and follow the step-by-step instructions to install your eSIM profile on your iPhone device.

How to activate eSIM on Samsung

Samsung devices support eSIM technology. Follow our guide to scan the QR code and activate your eSIM on Samsung phones.

How to activate eSIM on Google

Google Pixel phones are eSIM compatible. Learn how to download and activate your eSIM profile on Google devices.

Note: If you are using an iPhone, check the eSIM iPhone list to make sure you can use the eSIM on it, and follow the instructions below for its use.

How can I check if my phone supports eSIM?

iPhone

Settings → Cellular → Add eSIM

If you see an eSIM option, your phone is compatible.

Android

Settings → Network & Internet → SIMs

If you see an eSIM option, your phone is compatible.

Why my iPhone get locked?

The latest iPhones such as the iPhone 15, 16, or 17 series, using an eSIM is one of the most convenient and cost-effective ways to enjoy fast internet in Thailand or any other country. However, not every iPhone will work with eSIM. If you bought your iPhone under an installment plan or monthly contract from carriers such as T-Mobile, AT&T, Verizon, Vodafone, or similar, your phone might be network-locked, as carriers often lock phones until they are fully paid off to prevent fraud and promote customer loyalty. To check if your iPhone is locked, go to Settings >> General >> About and look for Carrier Lock;

  • If it says "SIM locked", you will need to request an unlock from your carrier.
  • If it says "No Sim Restriction", your iphone is compatible with eSIM

How to Install eSIM on iPhone

Follow these simple steps to activate your eSIM on iOS

Method 1: Install via QR Code

1

Get QR Code & Connect to Wi-Fi

Receive the QR code from your carrier (email or print) and connect your iPhone to Wi-Fi.

QR code received via email on iPhone screen
2

Open eSIM Settings

Go to Settings → Cellular / Mobile Data → Add eSIM.

iPhone Settings screen showing Cellular menu with Add eSIM option
3

Scan QR Code

Tap to Scan QR Code.

iPhone camera scanning eSIM QR code
4

Activate eSIM

Tap Continue and follow on-screen instructions to finish activation.

iPhone screen showing eSIM activation confirmation with Continue button

Method 2: Manual Installation

1

Enter Details Manually

Tap Add eSIM → Enter Details Manually.

iPhone screen showing Enter Details Manually option for eSIM setup
2

Enter Activation Details

Enter the SM-DP+ address and Activation Code provided by your carrier.

iPhone screen with SM-DP+ address and activation code input fields

After Installation

  • Rename eSIM: Settings → Cellular → select eSIM → label (e.g. Travel eSIM).
  • Set Default Line: Choose eSIM for Cellular Data if needed.
  • Enable Data Roaming: Turn on Data Roaming for travel eSIMs.

Set default lines: mobile data, iMessage, Facetime

If your phone has two lines (either one physical SIM and one eSIM, or 2 eSIMs), you can set up which one is for calls/texts and which one is for mobile data 3G/4G/5G:

  • Go to Settings > Cellular > Cellular data
  • Select the line you want to use for mobile data
  • Back to Settings > Cellular > select the line you want to use for iMessage or Facetime > Continue

Now you have successfully installed the eSIM on iPhone.

2.2 How to install eSIM on Samsung

Install your eSIM the day before you leave for travel and activate it during your flight or when you arrive at your destination.

Steps to take:

  • 1 Install your eSIM the day before you leave for travel and activate it during your flight or when you arrive at your destination.
  • 2 Select the type of device on which you are going to install an eSIM on (iPhone, Samsung, Google Pixel)
  • 3 Follow the QR code installation if you have the code on another device to scan
  • 4 Follow the Manual Installation if you are unable to scan the QR code.

Installation with QR code

Scan the QR code with your Samsung device camera to quickly install your eSIM.

Manual Installation

Enter the activation details manually if you cannot scan the QR code.

Need to know before installation and activation:

  • Ensure your device is eSIM-compatible and carrier-unlocked. Check out if your phone works with eSIM or not.
  • You must have the QR Code on another screen or device or printed paper to scan it with your phone camera.
  • Ensure that your internet connection remains stable throughout the entire process
  • The QR code or manual installation can only be done once.
  • DO NOT remove the eSIM from your device because it cannot be used again.

How to Install eSIM on Samsung (Android)

Follow the steps below to install your eSIM

1

Connect to Wi-Fi

Ensure a stable Wi-Fi connection before starting the installation process.

Connect to Wi-Fi on Samsung device

Enable Wi-Fi in your device settings

2

Open Settings

Go to Settings → Connections → SIM Manager.

Navigate to SIM Manager in Samsung Settings

Access SIM Manager from Connections menu

3

Add eSIM

Tap "Add mobile plan" or "Add eSIM" to begin the installation.

Add mobile plan option in SIM Manager

Select Add mobile plan or Add eSIM

4

Select Scan QR Code

Choose the "Scan QR code" option from the installation methods.

Select Scan QR code installation method

Choose Scan QR code option

5

Scan Your QR Code

Scan the QR code from your provider's eSIM (received via email or printed).

Note: Make sure the QR code is clearly visible and well-lit for successful scanning.

Scanning eSIM QR code with Samsung camera

Align QR code within the scanner frame

6

Confirm & Activate

Select "Add" and follow the prompts. Wait for the download to complete.

Confirm eSIM installation on Samsung

Tap Add to confirm installation

7

Set as Mobile Data (Optional)

In SIM Manager, select the new eSIM as your Mobile data source if needed.

Set eSIM as mobile data on Samsung

Choose eSIM for mobile data usage

1

Connect to Wi-Fi

Ensure a stable Wi-Fi connection before starting the installation process.

Connect to Wi-Fi on Samsung device

Enable Wi-Fi in your device settings

2

Open Settings

Go to Settings → Connections → SIM Manager.

Navigate to SIM Manager in Samsung Settings

Access SIM Manager from Connections menu

3

Add eSIM

Tap "Add mobile plan" or "Add eSIM" to begin the installation.

Add mobile plan option in SIM Manager

Select Add mobile plan or Add eSIM

4

Enter Activation Code

Tap "Enter activation code" to manually input your eSIM details.

Select Enter activation code option

Choose Enter activation code option

5

Input Activation Code

Enter the activation code provided by your eSIM carrier. The code format looks like:

LPA:1$operator.com$ABCDE-12345

Or:

https://operator-sm-dp.com

Important: Copy and paste the code carefully to avoid errors. Check for any extra spaces.

Enter eSIM activation code manually

Type or paste activation code

6

Confirm & Activate

Select "Add" and follow the prompts. Wait for the download to complete.

Confirm eSIM installation on Samsung

Tap Add to confirm installation

7

Set as Mobile Data (Optional)

In SIM Manager, select the new eSIM as your Mobile data source if needed.

Set eSIM as mobile data on Samsung

Choose eSIM for mobile data usage

2.3 How to Install eSIM on Google Pixel?

Once you have purchased your virtual SIM card with a local or international provider you can start with the configuration. We recommend you to do it through a QR code, which when scanned will automatically perform the configuration of your eSIM in the phone.

How to Activate eSIM on Google Pixel

1
Google Pixel Settings app icon on home screen

Connect to WiFi then open Settings on your Google Pixel phone

Tap the Settings icon to begin eSIM installation

2
Network & internet menu showing SIMs option on Google Pixel

Go to Network & internet → SIMs (or + Add SIM)

Navigate to the SIMs section in Network settings

3
Download eSIM button on Google Pixel SIM settings screen

Tap Download eSIM / Download a SIM instead?

Select the option to download a new eSIM

4
QR code scanner screen for eSIM activation on Google Pixel

Scan QR Code or enter code manually if required

Scan your eSIM QR code or enter the activation code manually

5
Download button to confirm eSIM installation on Google Pixel

Tap Download to install

Confirm the download to begin installing your eSIM

6
eSIM label input screen on Google Pixel showing custom name field

Label your eSIM (e.g. Travel eSIM)

Give your eSIM a recognizable name for easy identification

1
Toggle switch to enable eSIM on Google Pixel SIM settings

Turn ON the new eSIM in SIMs

Enable your newly installed eSIM by toggling it on

2
Mobile data settings showing eSIM selected as default on Google Pixel

Set it as Default for Mobile data

Choose your eSIM as the default mobile data connection

3
Data roaming toggle enabled for eSIM on Google Pixel

Enable Data Roaming for the eSIM

Turn on data roaming to use your eSIM while traveling

4
Power menu showing restart option on Google Pixel

Restart the phone (optional)

Restart your device to ensure eSIM activation is complete

How to Install eSIM in Vietnam - Complete Guide

Everything you need to know about using eSIM in Vietnam

No, Vietnam does not prohibit the use of eSIMs. If you are currently using an eSIM or eSIM-compatible phone, you will still be able to use your device in Vietnam without any legal issues. eSIM technology is fully supported and legal for travelers and residents.

Getting a Vietnamese eSIM is simple:

  1. Check Compatibility: Verify your device supports eSIM technology
  2. Buy your eSIM: Choose an eSIM plan that fits your travel needs and get it delivered instantly via email
  3. Scan & Activate: Scan the QR code in your email and turn on Data Roaming to activate your eSIM. Start using it right away!

Yes, absolutely! You can keep your WhatsApp number and all your contacts and conversations. You can use WhatsApp like normal during your trip in Vietnam. Your eSIM provides the data connection needed for messaging, calls, and video chats on WhatsApp.

We recommend buying your eSIM the day before your departure date or upon arrival at your destination. To install it, your device must be connected to WiFi or a mobile data network. Installing before you travel ensures you have connectivity as soon as you land in Vietnam.

No, the eSIM is data-only and does not come with a local phone number. It only allows the use of mobile data, so you cannot receive or send traditional calls or SMS. However, you can use internet-based calling and messaging apps like WhatsApp, Telegram, or Skype.

For iOS devices:

  1. Go to Settings, then choose Mobile Data
  2. You'll see your eSIM listed under SIMs
  3. Tap on your eSIM and check that Turn On This Line is enabled
  4. You're all set! Note: You might see "Unable to activate eSIM" during setup, but this is normal if you've followed the steps correctly

For Android devices:

  1. Go to Settings, then pick SIM cards & mobile networks
  2. Scroll down and choose Manage eSIM
  3. Here you'll find your activated eSIM

Most modern smartphones support eSIM technology, including iPhone XS and newer models, Samsung Galaxy S20 and newer, Google Pixel 3 and newer, and many other flagship devices. Check your device specifications or contact your manufacturer to confirm eSIM compatibility.

eSIM activation is typically instant once you scan the QR code and follow the setup instructions. You'll receive your eSIM QR code via email immediately after purchase. The actual installation process takes just a few minutes.

No, each eSIM is designed for use on a single device only. Once installed on a device, it cannot be transferred to another device. If you need connectivity for multiple devices, you'll need to purchase separate eSIM plans for each device.

If you run out of data before your plan expires, you can purchase a top-up or a new eSIM plan. Most providers offer flexible data packages that you can add to your existing eSIM. Monitor your data usage regularly to avoid running out unexpectedly.

No, you don't need to remove your physical SIM card. Most eSIM-compatible devices support dual SIM functionality, allowing you to use both your physical SIM and eSIM simultaneously. You can choose which SIM to use for data, calls, and messages in your device settings.

Vietnam has excellent mobile network coverage, especially in major cities like Hanoi, Ho Chi Minh City, and Da Nang. You can expect 4G LTE coverage in most urban and tourist areas. Rural and mountainous regions may have limited coverage, but major tourist destinations are well-served.

Since most Vietnam eSIMs are data-only, you cannot make traditional phone calls or send SMS. However, you can use internet-based calling services like WhatsApp, Skype, FaceTime, Telegram, or Viber to make voice and video calls over your data connection.

You can check your data usage in your device settings. On iOS, go to Settings > Mobile Data. On Android, go to Settings > Network & Internet > Mobile Network > App data usage. Some eSIM providers also offer apps or online portals to monitor your data consumption.

Yes, eSIM technology is very secure. eSIMs use the same security standards as physical SIM cards and are embedded directly into your device's hardware, making them difficult to remove or tamper with. Your data connection is encrypted, providing safe and secure internet access.

Be careful when deleting your eSIM profile. Once deleted, most eSIMs cannot be reinstalled using the same QR code. If you accidentally delete your eSIM, contact your provider for assistance. They may be able to issue a new QR code, though policies vary by provider.

Most Vietnam eSIMs provide 4G LTE speeds, which are sufficient for browsing, streaming, video calls, and social media. Actual speeds depend on network congestion, your location, and the local infrastructure. In major cities, you can expect fast and reliable connections.

Yes, you need to enable data roaming for your eSIM to work. Don't worry about roaming charges - your eSIM plan includes data, so there are no additional roaming fees. Make sure data roaming is turned on specifically for your eSIM line in your device settings.

Yes, if your device supports personal hotspot functionality, you can share your eSIM data connection with other devices like laptops, tablets, or other phones. Simply enable the personal hotspot feature in your device settings and connect your other devices via WiFi.

If your eSIM isn't working, try these steps: restart your device, ensure data roaming is enabled, check that your eSIM line is turned on, verify you're in an area with network coverage, and make sure your plan hasn't expired. If issues persist, contact your eSIM provider's customer support.

eSIM validity periods vary by plan. Common options include 7 days, 15 days, or 30 days from the date of activation. Your eSIM will stop working once the validity period expires or when you've used all your data, whichever comes first. Check your specific plan details for exact validity information.

Yes, most eSIM plans support tethering and personal hotspot features. You can share your mobile data connection with other devices. However, be mindful of your data allowance as tethering can consume data quickly, especially when connecting laptops or streaming on multiple devices.

Coverage in rural and remote areas of Vietnam may be limited or unavailable. Major tourist destinations like Sapa, Ha Long Bay, and Phu Quoc generally have good coverage, but very remote mountainous regions might have spotty or no service. Check coverage maps for specific areas you plan to visit.

Yes, you need an internet connection to install your eSIM. This can be WiFi or mobile data from your existing SIM card. Once installed, you can activate your eSIM when you arrive in Vietnam. We recommend installing your eSIM before departure while connected to your home WiFi.

Extension options depend on your eSIM provider. Some providers allow you to purchase top-up data or extend your validity period, while others may require you to purchase a new eSIM plan. Contact your provider before your plan expires to explore available options for extending your service.

If you lose your QR code email, check your email spam or trash folders first. If you still can't find it, contact your eSIM provider's customer support with your order details. They can resend your QR code. We recommend saving your QR code email or taking a screenshot for backup.

No, there is no performance difference between eSIM and physical SIM cards. Both provide the same network speeds, coverage, and data quality. The main difference is that eSIM is digital and embedded in your device, while a physical SIM is a removable card. Network performance depends on the carrier and location, not the SIM type.

Refund policies vary by provider. Many providers offer refunds if the eSIM hasn't been installed or activated yet. Once you've scanned the QR code and installed the eSIM, refunds are typically not available. Always check your provider's refund policy before purchasing.