Hi Seph,
Which actual box have you been sent?
As far as I'm aware it's only the Stream (Flex) box which doesn't have a hard drive that shows a blue LED.
https://www.virginmedia.com/help/how.../tv-box-lights
What does a blue light on the Stream box mean?
This means the TV box is on standby. Just press the power button on the Virgin TV remote to wake the TV box up and turn it on. After that you’ll see a white light.