Generally, Virgin Mobile devices are not network locked. But if you encounter issues using a different provider's SIM in your device, here's what you should do;
Some common Network Locked errors are:
Contact our Customer Service team online here or by calling 1300 555 100 with the following details on hand:
The team will provide you with a network unlock code and the steps to enter this code into your device. Once the code is entered, it can take from 15 minutes to 48 hours for your device to completely unlock.
In the rare case that the network unlock code for your device is unavailable, it may take up to 5 business day for your code to be retrieved from the manufacturer.