To convert a Vi SIM to an eSIM online, you can follow these steps:
Send an SMS to 199 in the format eSIM
You will receive a confirmation SMS
Reply with ESIMY to confirm your request
You will receive a call from Vi to confirm your request
You will receive a final SMS with a QR code sent to your registered email address
Go to Network & Internet in your device settings
Select Mobile Network and click on Download a SIM instead
Scan the QR code received via email
Follow the prompts and complete the eSIM activation