Frequently Asked Questions (FAQs)

eSIM is an electronic SIM built into the phone, no need to install a physical SIM. You just need to scan the QR code to use it immediately. iPhone models from XS and above, many Samsung Galaxy models, Google Pixel... all support eSIM. However, some iPhone and Samsung models purchased in Japan, China, Macao, Hong Kong may not support eSIM.

For eSIM: After payment, you will receive a QR code via email. To set up, make sure your device is connected to Wi-Fi or mobile network, then follow the instructions in the product description to set up. Please note that most eSIM plans will start counting usage time from the moment the eSIM is activated on the device. Therefore, you should set up the eSIM on the day of departure, avoiding early activation which will reduce usage time.

For physical SIM: SIM is delivered to you through popular carriers today. After receiving the SIM, you insert it into SIM slot 1 (if the device has 2 SIM slots), select the SIM using data as the SIM Aviro has just installed and turn on data roaming to use. Some packages will be automatically activated when the SIM is installed and connected to the network for the first time. If additional settings are required, please refer to the detailed instructions sent by Aviro.

If you encounter an error during installation or cannot connect to the network after scanning the QR code, first check if the device is connected to Wi-Fi and make sure to follow the instructions correctly. If it still fails, you can simply contact Aviro via chat or call 0384.909.454 (hotline) for the fastest support. If you are abroad, please find a Wi-Fi point at the airport or hotel to contact us. We are always ready to support you to check and handle it quickly.

Absolutely. You can keep your main SIM to receive domestic calls and messages and at the same time use Aviro's eSIM to access the Internet when abroad. This feature is very convenient, no need to remove the SIM and still ensures continuous connection. Make sure your main SIM is registered for roaming before leaving Vietnam. Do not enable the "allow mobile data switching" function to avoid the phone using the capacity from your main SIM. Using a Roaming SIM from Vietnam can be very expensive and cause signal interference in some cases, so if not really necessary, we recommend turning off the Vietnam SIM line and using only one Aviro line for the phone.

Most eSIM plans from Aviro allow data sharing via Wi-Fi hotspot. However, some plans may be limited depending on the carrier's regulations. Please read the product description for each plan carefully or contact us for specific advice.

The eSIM can only be set up once. If you delete or remove the eSIM from your device, the QR code cannot be used again. In this case, you will need to purchase a new eSIM to continue using it. Therefore, we recommend not removing the eSIM from your device unless specifically instructed by Aviro or when it is no longer needed.

This depends on the LTE band of your device and the LTE band in the country you are visiting. The LTE band of this non-phone device must be the same as the band in the country you are visiting.

LTE networks use different frequency bands:

• North America: mainly 700, 1700, 1900 and 2100 MHz
• Europe: mainly 800, 1800, 2600 MHz
• Asia: 1800, 2600 MHz
• Australia: 1800 MHz
• Taiwan: 700, 900, 1800 MHz

So, a device that works fine in one country may not work in another if it doesn’t support the right frequency band. Therefore, you need to use a device that supports multiple frequency bands to be able to use Aviro eSIM for international travel.

For devices other than mobile phones with a physical SIM slot, whether the device supports eSIM and network roaming, please contact our customer service for advice.

Physical travel SIM cards usually only support Internet access (data only). However, some SIM cards will fully support calling, SMS messaging and Internet functions. When buying a physical SIM card, you should read the product description carefully to make sure the product supports this calling function or not.

If your physical SIM card is lost or damaged while traveling, please contact Aviro immediately for assistance. In some cases, we can reissue, replace or refund if the SIM card is unused and within its validity period.

If your device supports eSIM, Aviro can provide you with a replacement QR code to continue using the service. Alternatively, you can purchase a new SIM locally to ensure you stay connected in the meantime.

The physical SIM supports the Mobile Hotspot sharing function, allowing you to share the Internet connection with other devices such as laptops, tablets or other phones. However, you should carefully check the product information or ask the supplier directly to confirm this feature!

You can check the used capacity on physical SIM and eSIM by following these steps:

For iOS (iPhone):

1. Go to Settings > Select Cellular or Mobile Data
2. Scroll down to the Current TG Roaming section, the number displayed here is the total amount of data you have used.

For Android (Samsung, Vivo..):

1. Go to Settings and select Connections or Mobile Networks .
2. Scroll down to check Data usage

In case you want to see the remaining capacity each specific day, you can contact Aviro customer care for the fastest and most accurate lookup support.

The validity period of a travel SIM depends on the package you choose. At Aviro, SIMs are usually valid until the end of the current year, usually December 31, suitable for long-term, multiple-use needs. Please note that the validity period will start from the moment you insert the SIM into your device and activate it. Therefore, to save data, you should insert the SIM when you arrive in the destination country or just before departure.

Absolutely! Just provide a picture of your SIM card with the information on the SIM tray, Aviro will renew or add a new package for you easily and quickly.

For iOS:

1. Open Settings > Cellular > Add eSIM
2. Select Use QR code > Scan QR directly or Upload photo from photo library
3. You name the eSIM Aviro then complete the installation
4. Select the eSIM you just installed as the main line in the Mobile Data section and tap on the eSIM you just installed to enable Data Roaming

For Android:

1. Open Settings > Connections > SIM Management > Add Mobile Plan
2. Select Scan QR code > Scan QR directly or Upload photo from photo library
3. You name the eSIM Aviro then complete the installation
4. Select the eSIM you just installed as the main line in the Mobile Data section and tap on the eSIM you just installed to enable Data Roaming

Note: Before installing, make sure your device supports eSIM and has received the QR code or necessary information from Aviro.

You can install multiple eSIMs on one device. However, it should be noted that only 1 eSIM and 1 physical SIM can be used at the same time, allowing two different phone numbers to be used on the same device. You can change each eSIM line using the internet in the "Mobile Data" section. You should name the eSIM easily in case you install multiple eSIMs on one phone device.

Most eSIMs allow data sharing via hotspot. However, depending on your provider and phone device, some plans only support internet access for the device with the eSIM installed and do not allow Wi-Fi sharing to other devices. Therefore, you should carefully check the eSIM package information and phone configuration before purchasing to ensure that data sharing is available.

For iOS:

1. Open Settings > Cellular
2. Select the eSIM you want to remove from your device. If eSIM is not enabled, select Enable this line.
3. Scroll to the bottom of the page and select Delete eSIM
   
   

For Android:

1. Open Settings > Connections > SIM Management (Make sure you have eSIM enabled)
2. Select the eSIM you want to remove from your device
3. Select Delete eSIM or Remove and confirm.

Note: eSIM cannot be reinstalled after being deleted from the device. Therefore, you should consider carefully and only delete it when you no longer need to use it.

For iOS:

1. Open Settings > Cellular (Make sure you have eSIM enabled)
2. Select Mobile Data
3. eSIM tick means eSIM is using data

For Android:

1. Open Settings > Connections > SIM Management (Make sure you have eSIM enabled)
2. Scroll down and check the eSIM is using data at Mobile Data

Yes. Aviro offers a variety of eSIM packages that work in many countries, allowing you to connect to the internet in many destinations with great convenience. For example, regional eSIM packages such as 35 European countries, China - Hong Kong - Macao, Singapore - Indonesia - Malaysia - Thailand, ... can work in many countries. You just need to check the list of supported countries in the package description to choose the right one for your needs.

Depending on the package, eSIM can have a validity period of 1, 3, 5, 7, 10, 15, 20 to 30 days . This period is calculated from the time you activate the eSIM, not from the time of purchase. Please note that the QR code is valid for 30 days. If there is a change in flight schedule, please contact Aviro for consideration of support for cancellation and issuance of a new package. With many flexible options such as daily packages and total capacity packages, you can easily choose an eSIM package with a validity period that suits your travel schedule.

Currently, Aviro only offers fixed plans that do not support renewal after the data is used up or expires. If you need more data, you can purchase a new eSIM plan to continue using it. In the future, Aviro may consider adding plans with renewal features if supported by carriers.

Aviro eSIM plans all use the high-speed 4G/5G/LTE network in your destination country (depending on supported carriers and compatible devices). Actual network speeds may vary depending on location, local partner carriers, and coverage.

After successful payment, you will receive detailed installation instructions with a QR code via email. Installation is usually very simple and only takes a few minutes. In addition, Aviro is always available to support you if you have difficulty scanning the code, activating the eSIM or selecting the correct configuration on your phone.

Aviro supports refunds in case the problem occurs due to a technical error on Aviro's part or you have followed the instructions correctly but the product still does not work. The refund policy will not be applicable in some cases. Specifically, please refer here !

With eSIM, you will receive a QR code and setup instructions via email within minutes of successful payment. With physical SIM, your order will be processed and delivered to you within 1 hour – 7 business days , depending on your delivery area and the shipping package you choose.

Currently, Aviro only delivers physical SIMs within Vietnam. For international customers or those living abroad, you can choose eSIM to receive immediately without shipping.

Yes. Once your order has been successfully delivered to the carrier, Aviro will send you a tracking number via email. You can use this number to check the delivery status at any time.

Delivery charges are calculated based on the delivery address and will be clearly displayed before you confirm payment. Aviro offers free standard delivery in some areas, and reasonable charges for express or remote delivery. Aviro also offers discounted or free delivery for orders of 3 or more travel SIMs.

Normally, you will receive your eSIM within a few minutes of payment. If it has been more than 15 minutes and you have not received an email, please:

• Check your spam/junk mail
• Log in to your Aviro account to review your order and eSIM code

If you still don't have it, please contact our customer support via email Sales.VN@avironetwork.com , live chat or hotline 0384 909 454 - we will check and send you the eSIM as soon as possible.