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, does not require removing 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 an Aviro line for your 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.