eSIM Phone Installation Guide by Device Type
Follow these simple instructions to install and set up your eSIM
⚠️ CRITICAL: WiFi Connection Required
Please ensure you are connected to a stable WiFi connection before installing your eSIM. If the connection is not stable, the eSIM may be installed without going through your phone step by step process. In this case, please recheck your phone mobile service/sim manager page for the eSIM.
Important Notes Before Installation:
- One-time installation: eSIM profiles can only be downloaded once. Do not delete your eSIM after installation - it cannot be restored.
- Device requirements: Your phone must be carrier-unlocked and eSIM-compatible.
- Data roaming is mandatory: You MUST enable data roaming for the eSIM to work, even in the destination country.
- Prevent conflicts: Disable other SIMs/eSIMs when using your travel eSIM.
- APN may be required: Android devices and Japan eSIMs often need manual APN configuration.
3HK eSIM Special Instructions (Click to expand)
📍 Hong Kong & Taiwan Registration Required
This eSIM WILL NOT WORK in Hong Kong and Taiwan unless registered.
For quick auto-registration:
- Open the registration link on your phone while connected with this eSIM
- Scan your passport
- Do not modify any auto-filled information
Registration Links:
Hong Kong: https://www.three.com.hk/prepaid/account/en/rnr-reg
Taiwan only: https://www.three.com.hk/prepaid/account/en/tw-rnr
*Registration is not required outside Hong Kong and Taiwan.
- Fixed APN: mobile.three.com.hk
- One-time download: This eSIM cannot be re-downloaded if deleted
Japan eSIM (IIJ-Docomo) Special Instructions (Click to expand)
- APN Required: Japan IIJ-Docomo eSIMs require manual APN setup
- APN: Check your email for the specific APN details
- Network selection: May need to manually select Docomo network
- iPhone
- Samsung
- Pixel
- OPPO
- HUAWEI
- Xiaomi
- Motorola
iPhone
Learn more about iPhone eSIMImportant: Your phone must be carrier-unlocked to use eSIM. Compatible with(excluding iPhone from China):
- iPhone XR
- iPhone XS
- iPhone XS Max
- iPhone 11
- iPhone 11 Pro
- iPhone 12
- iPhone 12 Mini
- iPhone 12 Pro
- iPhone 12 Pro Max
- iPhone 13
- iPhone 13 Mini
- iPhone 13 Pro
- iPhone 13 Pro Max
- iPhone SE 3 (2022)
- iPhone 14/14 Plus/Pro/Pro Max
- iPhone 15/15 Plus/Pro/Pro Max
- iPhone 16/16 Plus/Pro/Pro Max
How to install an eSIM on iPhone
Before You Start
Please ensure you are connected to a stable WiFi connection before installing your eSIM. If the connection is not stable, the eSIM may be installed without going through your phone step by step process. In this case, please recheck your phone mobile service/sim manager page for the eSIM.
Additionally, ensure your iPhone is:
- Carrier-unlocked
- Running iOS 12.1 or later
- Connected to a stable WiFi network
Installation Method 1: Quick Install (iOS 17.4+)
If you have iOS 17.4 or later, you can use the quick install method:
- Click the "Install eSIM" button in your email on your iPhone
- A popup will appear asking to add the cellular plan
- Tap "Add Cellular Plan"
- Follow the on-screen instructions
Note: This method only works when you open the email on the iPhone where you want to install the eSIM.

Installation Method 2: Scan QR Code
Use this method for any iOS version:
- Open your iPhone Camera app
- Point it at the QR code in your email
- A notification will appear at the top: "Cellular Plan Detected"
- Tap the notification
- Select "Add Cellular Plan"
Alternative: Go to Settings > Cellular > Add Cellular Plan, then scan the QR code.

Label Your eSIM
After adding the plan, you'll be prompted to label your eSIM:
- Choose a custom label or select from the list
- We recommend using: [Country] eSIM (e.g., "Japan eSIM")
- This helps identify the eSIM if you have multiple plans
Important: Remember which device you installed each eSIM on. Each profile can only be installed on one device.

Configure Cellular Settings
Critical Step: You must enable Data Roaming for the eSIM to work:
- Go to Settings > Cellular
- Tap on your eSIM (shown with the label you created)
- Toggle ON "Data Roaming" - This is essential!
- Toggle ON "Turn On This Line" if not already enabled

🔧 Troubleshooting Tips for iPhone
- No data connection?
- Verify the APN is set correctly (most important for Android and Japan eSIMs)
- Check that data roaming is enabled
- Ensure your eSIM is selected as the active data SIM
- Can't find network? Try manually selecting a network operator instead of automatic selection
- Multiple SIMs causing issues? Disable other SIMs/eSIMs temporarily
- Settings not sticking? Restart your device after making APN changes
- eSIM not visible? Check Mobile Services/SIM manager - it may have installed without notifications
- iPhone specific: If quick install doesn't work, try the QR code method or manual entry
Still need help? Contact our support team at [email protected] with your order number and specific issue.
Samsung
Learn more about Samsung eSIMHow to install an eSIM on Samsung
Scan the QR Code

Confirm and Add Mobile Plan

Enable Data Roaming
Critical Step: Data roaming MUST be enabled for your eSIM to work:
- Go to Settings > Connections > Mobile Networks
- Select your eSIM profile
- Toggle ON "Data roaming"
- Make sure "Mobile data" is also ON
Check APN Settings (If Needed)
Check if APN is already configured:
- Go to Settings > Connections > Mobile Networks
- Ensure your eSIM is selected as the mobile data SIM
- Tap "Access Point Names"
- Check if an APN is already listed
If no APN is listed:
- Tap "+" or "Add"
- Enter only the APN field with the APN from your email
- Save and select the new APN
- Restart your device
🔧 Troubleshooting Tips for Samsung
- No data connection?
- Verify the APN is set correctly (most important for Android and Japan eSIMs)
- Check that data roaming is enabled
- Ensure your eSIM is selected as the active data SIM
- Can't find network? Try manually selecting a network operator instead of automatic selection
- Multiple SIMs causing issues? Disable other SIMs/eSIMs temporarily
- Settings not sticking? Restart your device after making APN changes
- eSIM not visible? Check Mobile Services/SIM manager - it may have installed without notifications
Still need help? Contact our support team at [email protected] with your order number and specific issue.
How to install an eSIM on Pixel
Access Network Settings
- Go to Settings
- Tap "Network & Internet"
- Tap "Mobile network" or "+"
- Tap "Add more"

Download and Scan QR Code
- Tap "Download your eSIM"
- Tap "Next"
- Scan the QR code from your order email

Enable Mobile Data and Roaming
Critical Step: Both mobile data and roaming MUST be enabled:
- Turn ON "Mobile data"
- Turn ON "Roaming"
- Ensure your eSIM is selected as the active mobile data SIM
Configure APN Settings
Check if your eSIM already has APN configured:
- Go to Settings > Network & Internet > Mobile network
- Make sure your eSIM is selected
- Tap "Advanced" > "Access Point Names"
- Check if an APN is already active
If no APN appears:
- Tap "+" to add new APN
- Enter only the APN field with the APN from your email
- Save and select the new APN
- Restart your device
🔧 Troubleshooting Tips for Pixel
- No data connection?
- Verify the APN is set correctly (most important for Android and Japan eSIMs)
- Check that data roaming is enabled
- Ensure your eSIM is selected as the active data SIM
- Can't find network? Try manually selecting a network operator instead of automatic selection
- Multiple SIMs causing issues? Disable other SIMs/eSIMs temporarily
- Settings not sticking? Restart your device after making APN changes
- eSIM not visible? Check Mobile Services/SIM manager - it may have installed without notifications
Still need help? Contact our support team at [email protected] with your order number and specific issue.
How to install an eSIM on OPPO
Access SIM Settings

Select eSIM Option
- Select "eSIM"
- Accept the terms and continue
- Select "Add eSIM"

Scan QR Code
- When prompted, scan the QR code from your order email
- Wait for the installation to complete
Enable Data Roaming and Configure Settings
Enable your eSIM for data connectivity:
- Enable your eSIM profile
- Turn ON "Data roaming" for your eSIM profile
- Ensure "Mobile data" is also enabled
- Disable other SIMs/eSIMs to prevent conflicts
Configure APN Settings
Check if APN is already configured:
- Go to Settings > SIM Card & Mobile Data
- Select your eSIM
- Tap "Access Point Names" or "APN"
- Check if an APN is already listed
If no APN exists:
- Tap "+" or "Add"
- Enter only the APN field with the APN from your email
- Save and select as active
- Restart device
🔧 Troubleshooting Tips for OPPO
- No data connection?
- Verify the APN is set correctly (most important for Android and Japan eSIMs)
- Check that data roaming is enabled
- Ensure your eSIM is selected as the active data SIM
- Can't find network? Try manually selecting a network operator instead of automatic selection
- Multiple SIMs causing issues? Disable other SIMs/eSIMs temporarily
- Settings not sticking? Restart your device after making APN changes
- eSIM not visible? Check Mobile Services/SIM manager - it may have installed without notifications
Still need help? Contact our support team at [email protected] with your order number and specific issue.
HUAWEI
Learn more about HUAWEI eSIMHow to install an eSIM on HUAWEI
Access SIM Management
Note: Even if your device only supports one physical SIM card, SIM 1 and SIM 2 options are displayed. The eSIM card is installed in the SIM 2 slot by default.

Add eSIM
- Go to SIM 2
- Select "Add eSIM"
- Scan the QR code received from your order email

Enable Data Roaming
- Enable your eSIM profile
- Enable data roaming for your eSIM (essential for connectivity)
- Disable other SIMs/eSIMs to prevent conflicts
Important: Your eSIM won't work without roaming enabled, even if you're in the correct country.
Check APN Settings (If Needed)
Check if your eSIM already has APN configured:
- Go to Settings > Mobile network > SIM management
- Select your eSIM (SIM 2)
- Tap "Access Point Names" or "Mobile data"
- Check if an APN is already active
If no APN exists:
- Tap "+" or "New APN"
- Enter only the APN field with the APN from your email
- Save and select the new APN
- Restart device
🔧 Troubleshooting Tips for HUAWEI
- No data connection?
- Verify the APN is set correctly (most important for Android and Japan eSIMs)
- Check that data roaming is enabled
- Ensure your eSIM is selected as the active data SIM
- Can't find network? Try manually selecting a network operator instead of automatic selection
- Multiple SIMs causing issues? Disable other SIMs/eSIMs temporarily
- Settings not sticking? Restart your device after making APN changes
- eSIM not visible? Check Mobile Services/SIM manager - it may have installed without notifications
Still need help? Contact our support team at [email protected] with your order number and specific issue.
Xiaomi
Learn more about Xiaomi eSIMHow to install an eSIM on Xiaomi
Access SIM Settings

Manage eSIM
- Scroll down until you see the option "Manage eSIM" and click on it
- Tap "Add mobile plan"

Scan QR Code
- When prompted, scan the QR code from your order email
- Wait for the installation to complete
Enable Data Roaming and Configure Settings
Configure your eSIM for data connectivity:
- Enable your eSIM profile
- Enable "Data roaming" for your eSIM (essential for connectivity)
- Make sure "Mobile data" is enabled
- Set your eSIM as the preferred data SIM
- Disable other SIMs/eSIMs to prevent conflicts
Check APN Settings (If Needed)
Check if APN is already configured:
- Go to Settings > SIM cards & mobile networks
- Select your eSIM
- Tap "Access Point Names"
- Check if an APN is already listed and active
If no APN exists:
- Tap "+" or "Add"
- Enter only the APN field with the APN from your email
- Save and make it active
- Restart device
🔧 Troubleshooting Tips for Xiaomi
- No data connection?
- Verify the APN is set correctly (most important for Android and Japan eSIMs)
- Check that data roaming is enabled
- Ensure your eSIM is selected as the active data SIM
- Can't find network? Try manually selecting a network operator instead of automatic selection
- Multiple SIMs causing issues? Disable other SIMs/eSIMs temporarily
- Settings not sticking? Restart your device after making APN changes
- eSIM not visible? Check Mobile Services/SIM manager - it may have installed without notifications
Still need help? Contact our support team at [email protected] with your order number and specific issue.
Motorola
Learn more about Motorola eSIMHow to install an eSIM on Motorola
Access Network Settings
- Go into Settings
- Click on "Network & Internet"

Access Mobile Network and Carrier Settings
- Click on "Mobile Network"
- Click the drop-down menu named "Advanced"
- Click on "Carrier"

Add Carrier and Scan QR Code
- Tap "Add carrier" and go next
- Scan the QR code from your order email
- Wait for the installation to complete

Enable Data Roaming and Configure Settings
Activate your eSIM for data use:
- Enable your eSIM profile
- Enable "Data roaming" for your eSIM (required for connectivity)
- Ensure "Mobile data" is turned on
- Set your eSIM as the data SIM if you have multiple SIMs
- Disable other SIMs/eSIMs to prevent conflicts
Check APN Settings (If Needed)
Check if your eSIM already has APN configured:
- Go to Settings > Network & Internet > Mobile network
- Make sure your eSIM is selected
- Tap "Advanced" > "Access Point Names"
- Check if an APN is already active
If no APN exists:
- Tap "+" or "Add"
- Enter only the APN field with the APN from your email
- Save and select the new APN
- Restart device
🔧 Troubleshooting Tips for Motorola
- No data connection?
- Verify the APN is set correctly (most important for Android and Japan eSIMs)
- Check that data roaming is enabled
- Ensure your eSIM is selected as the active data SIM
- Can't find network? Try manually selecting a network operator instead of automatic selection
- Multiple SIMs causing issues? Disable other SIMs/eSIMs temporarily
- Settings not sticking? Restart your device after making APN changes
- eSIM not visible? Check Mobile Services/SIM manager - it may have installed without notifications
Still need help? Contact our support team at [email protected] with your order number and specific issue.
📋 Quick Setup Checklist
Follow these steps regardless of your device type:
- ✓ Connect to WiFi before installation
- ✓ Go to device settings under Mobile Services or SIM manager
- ✓ Find option to add eSIM, then scan QR code or enter details manually
- ✓ Follow onscreen instructions and label your eSIM for easy identification
- ✓ Enable your eSIM profile when you want to use it
- ✓ Enable roaming for the eSIM profile (mandatory!)
- ✓ Configure APN if required (especially for Android and Japan eSIMs)
- ✓ Disable other SIMs to prevent conflicts
- ✓ Restart device after setup for best results