It's simple, just follow the steps below and you're ready.
Go to SETTINGS then MOBILE & SIM then SIM SETTINGS and select INTERNET APN (Access Point Name). Finally enter the information as per below :
- Connection name: Virgin Mobile Data
- Internet APN:
- Access point name: internet1
- Username: optional
- Password: optional
- Proxy address: Ignore
- Proxy port: Ignore
- MMS APN: Ignore