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Get help with your Vietnam eSIM. We're here to assist you!

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eSIM Installation

Step-by-step guides for iPhone and Android devices

Coverage Issues

Troubleshoot connectivity problems

General Questions

Billing, refunds, and other inquiries

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Frequently Asked Questions

  1. Go to Settings > Cellular > Add Cellular Plan
  2. Scan the QR code from your email or the "My eSIM" page
  3. Follow the on-screen instructions
  4. Label your new plan (e.g., "Vietnam Data")
  5. Enable Data Roaming for the eSIM line

Note: You can install the eSIM before your trip. It will activate when you connect to a network in Vietnam.

  1. Go to Settings > Network & Internet > SIMs > Add eSIM
  2. Select "Scan QR code" or "Download from network"
  3. Scan the QR code from your email
  4. Wait for the download to complete
  5. Enable the eSIM and set it as your data line

Note: Menu names may vary by phone model. Samsung users: Go to Settings > Connections > SIM Manager.

Yes, Data Roaming must be enabled for the eSIM to work. This is because eSIM uses international roaming networks to provide connectivity.

Don't worry about extra charges - all data usage is included in your purchased plan. You won't be charged any additional roaming fees.

How to enable:
  • iPhone: Settings > Cellular > [Your eSIM line] > Turn on Data Roaming
  • Android: Settings > Network > SIMs > [Your eSIM] > Turn on Roaming

Try these troubleshooting steps:

  1. Enable Data Roaming (Most Common Issue!): Go to Settings > Cellular > [Your eSIM] > Turn on Data Roaming. This is required for the eSIM to work.
  2. Restart your phone: A simple restart often fixes connectivity issues
  3. Check network mode: Make sure your phone is set to 4G/LTE or Auto
  4. Reset network settings: Settings > General > Reset > Reset Network Settings
  5. Manual network selection: Try selecting a network manually (Viettel, Mobifone, or Vinaphone)

Still having issues? Contact us with your ICCID number (found in your eSIM details).

Your data plan validity period begins when you first connect to a mobile network in Vietnam, not when you install the eSIM. This means you can install your eSIM before your trip and it won't start counting down until you arrive and connect.

Our eSIM provides data only. It does not include voice calls or SMS. However, you can use internet-based apps like WhatsApp, LINE, Telegram, or Skype for voice and video calls, as well as messaging. These work perfectly with your data plan.

Visit the My eSIM page and log in with your email. You'll see your data usage and remaining balance. Note that usage updates may be delayed by 30 minutes to a few hours depending on the carrier.

Refunds are available in these situations:

  • If you haven't installed/activated the eSIM yet
  • If the eSIM fails to work due to a technical issue on our end

Contact us with your order reference number and we'll process your refund within 5-7 business days.

If your plan supports top-ups (marked as "Refillable"), go to the My eSIM page, select your eSIM, and click "Top Up Data". You'll see available top-up packages. After purchase, the additional data is added to your existing eSIM automatically.

eSIM Installation Guides

iPhone

Compatible with iPhone XS, XR, 11, 12, 13, 14, 15, SE (2nd/3rd gen) and later

  1. Settings > Cellular > Add Cellular Plan
  2. Scan QR code or enter details manually
  3. Label your plan (e.g., "Vietnam Data")
  4. Set as primary data line
  5. Enable Data Roaming

Android

Compatible with Samsung S20+, Pixel 3+, and other eSIM-capable devices

  1. Settings > Network > SIMs > Add eSIM
  2. Select "Scan QR code"
  3. Point camera at QR code
  4. Wait for download to complete
  5. Enable eSIM and set as data line
Important - Data Roaming Required: You must enable Data Roaming for the eSIM to work. Go to Settings > Cellular > [Your eSIM] > Turn on Data Roaming. Don't worry - you won't be charged extra fees as all data is included in your plan.
Device Compatibility: Make sure your device is eSIM-compatible and not locked to a carrier. You can check by going to Settings > Cellular > Add Cellular Plan. If this option exists, your phone supports eSIM.