Please make sure your phone supports eSIM and is unlocked before booking.
Install the eSIM with a stable Wi-Fi connection before your trip.
Each QR code can only be installed once on one device.
The validity period starts when the eSIM first connects to a mobile network in Vietnam.
If the eSIM does not connect, please restart your phone 1–2 times.
OTP or verification SMS from local apps, banks, or online services is not supported.