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Travel SIM/eSIM user guide

From checking your device, installation and turning on data roaming to troubleshooting — every step you need to get online the moment you land.

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What is a travel eSIM/SIM?

An international travel SIM keeps you online abroad at a low cost, with no roaming charges to worry about. Just insert the SIM or scan the eSIM QR code to connect to 4G/5G in more than 200 countries and territories.

1. What is a travel eSIM?

A travel eSIM is a digital SIM built into eSIM-compatible phones. Simply scan the QR code to activate it and use the network in your destination country — no physical SIM swapping needed.

How to check whether your device supports eSIM

To confirm your device can use an eSIM, dial *#06# on the keypad and press call:

EID is shown: your device supports eSIM
No EID is shown: your device does not support eSIM
iPhone (iOS)
Checking the EID on iPhone
Android
Checking the EID on Android

2. Travel physical SIM

A travel physical SIM is a removable SIM card designed for travellers, letting you use mobile networks in many countries without buying a local SIM. It goes straight into your phone's SIM slot and comes in all 3 sizes — nano, micro and mini — to fit most phones today.

eSIM vs physical SIM

eSIMPhysical SIM
Installation
Scan a QR code, no need to remove your original SIMInsert the physical SIM
Delivery time
QR code sent by email right after payment1–4 days shipping (depending on area)
Changing carrier/number
Easy, no swapping needed — especially on devices that run 2 SIMs at once (eSIM and physical)Remove the SIM and insert a new one
Safety and durability
Cannot be dropped or physically damagedEasy to lose, break or develop contact faults
Compatibility
Works on eSIM-supported devicesWorks on any phone

Install and activate your eSIM

Note: Make sure your device has a stable 4G/Wi-Fi connection while installing the eSIM. Please install the eSIM / insert the SIM 2–3 hours before your trip.

1. Your eSIM email and QR code

  • Check your email for the QR code, SM-DP+ address and activation code from the provider.
  • The code can be printed, screenshotted or scanned from another device.
eSIM details in the email: ICCID, QR code, SM-DP+ address, activation code

Note: The SIM must be activated within 30 days of a successful order.

2. Installing on iOS

iPhone (iOS)

Install from the device that will use the eSIM

  1. Step 1Take a screenshot of the eSIM QR code
  2. Step 2Go to Settings > scroll down to Camera > turn on “Scan QR Codes”
  3. Step 3Open the Camera app > open the QR code screenshot > tap the QR scan icon at the bottom right > tap the QR code > choose Add eSIM > tap “Allow” and finish the setup.
Installing the eSIM from a QR screenshot on iPhone

Note: Scanning an eSIM QR code from a photo on iPhone requires iOS 17 or later.

Install by scanning the QR code shown on another device

  1. Step 1Go to Settings > Cellular > Add eSIM (or Add Cellular Plan) > Use QR Code.
  2. Step 2Scan the QR code opened on another device or printed out
  3. Step 3On the Activate eSIM screen, tap Continue.
  4. Step 4On the Cellular Setup Complete screen, tap Done.
Installing the eSIM with a QR code on another device

Install by entering the details manually

  1. Step 1Connect to stable 4G/Wi-Fi > go to Settings > Cellular > Add eSIM (or Set Up Cellular if Add eSIM is not shown) > choose Enter Details Manually.
  2. Step 2Enter the SM-DP+ address and Activation code (included in the eSIM email)
  3. Step 3On the Activate eSIM screen, tap Continue.
  4. Step 4Finish on the Cellular Setup Complete screen.
Entering eSIM details manually on iPhone

3. Installing on Android

Android

Install with the eSIM QR code

  1. Step 1Connect to stable 4G/Wi-Fi > open Settings > Connections > SIM Manager
  2. Step 2Choose Add eSIM > Scan QR code
  3. Step 3Fit the QR code inside the scan frame, tap Add and wait a few minutes for the eSIM to be added.
Installing the eSIM with a QR code on Android

Note: Uploading a QR code image is only available on Samsung Galaxy S20, newer Samsung models and some other Android phones.

Install by entering the code manually

  1. Step 1Open Settings > Connections > SIM Manager
  2. Step 2Choose Add eSIM > Scan QR code
  3. Step 3On the scan screen, choose Enter activation code
  4. Step 4Enter the eSIM details sent by the provider > tap Done.
  5. Step 5When asked to Add eSIM > tap Add and wait a few minutes while the phone adds the eSIM.
Entering the eSIM activation code manually on Android

Using your eSIM/SIM

1. Select/turn on the eSIM/SIM and data roaming on iOS

iPhone (iOS)
  1. Step 1After arriving, go to Settings > Cellular.
  2. Step 2Select the eSIM/SIM > turn on Turn On This Line and Data Roaming.
  3. Step 3Go back to Cellular, tap Cellular Data > choose the travel eSIM/SIM as your main mobile data line.
Turning on data roaming on iPhone

2. Select/turn on the eSIM/SIM and data roaming on Android

Android
  1. Step 1After arriving, go to Settings > Connections > SIM Manager > turn on the eSIM/SIM > under Mobile Data, choose the eSIM/SIM as your main data SIM.
  2. Step 2Go back to Connections > Mobile networks > turn on Data Roaming to finish.
Turning on data roaming on Android

Select a network manually when there is no or weak signal

Note: How to select a network manually if you have no signal or a weak signal

iPhone (iOS)

Go to Settings – Cellular – select the travel eSIM/SIM – Network Selection – turn off Automatic, then tick each listed carrier in turn to find the best signal.

Manual network selection on iPhone
Android

Go to Settings – Connections – Mobile networks – Network operators – turn off Automatic, then tick each listed carrier in turn to find the best signal.

Manual network selection on Android

3. Setting up the APN

iPhone (iOS)
  1. Step 1Go to Settings > Cellular
  2. Step 2Select the travel eSIM/SIM > tap “Cellular Data Network”
  3. Step 3Check that the APN fields match the information on the product page (Username/Password if any)
  4. Step 4If the APN shows a different value (e.g. m-wap), change it to infigate. If the product has a Username/Password, fill them in > exit, restart the phone and turn on “Cellular Data”.
APN settings on iPhone
Android
  1. Step 1Go to Settings > Mobile networks (or Connections).
  2. Step 2Tap “Access Point Names” > select the travel eSIM/SIM > tap + or Add at the top right.
  3. Step 3Enter the APN details from the product page, tap Save > select the APN you just created
  4. Step 4Restart the device and use it again

4. Removing an eSIM

iPhone (iOS)

Go to Settings > Cellular > select the travel eSIM plan to remove > tap Remove Cellular Plan, then confirm.

Android

Go to Settings > Connections > SIM Manager > select the travel eSIM to remove > switch it OFF > tap Remove and confirm.

Note: Each eSIM can only be activated once. Please do not delete the eSIM from your phone — contact Customer Care for help instead.

Checking your data usage

On iOS

iPhone (iOS)
  1. Step 1Go to Settings > Cellular > Cellular Data > choose the eSIM/physical SIM as your data SIM
  2. Step 2Go back to the Cellular screen > see the data used under Current Period Roaming.

Common issues

1. Do I need to register my details (eKYC) to use it?

No. Just insert the SIM (physical SIM) or scan the activation QR code (eSIM) and turn on Data Roaming. Please insert the SIM/add the eSIM 2–3 hours before boarding.

2. I didn't receive the email with my eSIM code

The email with your eSIM details (including the QR code and plan details) is sent within 5–10 minutes of successful payment.

Please check your inbox and Spam/Junk folder so you don't miss it.

If you still haven't received it after that time, please contact customer support so we can check and reissue the QR code promptly.

Hotline+84 888 018 880Call customer careEmailcskh@simtel.vnReply by emailWhatsApp / Viber+84 888 018 880Message us while abroad
Zalo OASimtelSearch “Simtel” on Zalo

3. I can't scan the eSIM QR code

There are several reasons a QR code scan may fail:

No Internet connectionYou need an Internet connection (Wi-Fi or mobile data) to scan the eSIM QR code. Please keep a good connection during installation.
Phone not eSIM-compatibleCheck Settings to make sure your phone supports eSIM.
Not scanning from the eSIM settingsAn eSIM can only be installed by scanning the QR code in the eSIM settings — not with the Camera app or any other app.
QR code expiredIn some cases the QR code has already been used, which also prevents scanning.
QR code not fully inside the frameHold the phone so the whole QR code sits inside the scan frame before scanning.

4. The eSIM is installed but there's no signal

Please make sure you are in your destination country — the eSIM only works there.

Option 1: Check that Data Roaming is on and the travel eSIM/SIM is set as the main line for mobile data.

iPhone (iOS)
Checking data roaming on iPhone
Android
Checking data roaming on Android

Option 2: Restart your phone or wait about 5–10 minutes, as some networks take a little longer to activate.

If the issue persists, please contact us as soon as possible through one of these channels:

Hotline+84 888 018 880Call customer careEmailcskh@simtel.vnReply by emailWhatsApp / Viber+84 888 018 880Message us while abroad
Zalo OASimtelSearch “Simtel” on Zalo

5. How do I use a physical SIM?

Simply insert the physical SIM into your phone and turn on Data Roaming to start using the service.

If you still can't get online, restart the device or contact support for guidance.

Contact us

We're always ready to listen and help with any question. Leave your contact details and our team will get back to you as soon as possible.