Hi Marley,
Thanks for the reply. I have tried to hold the setup button for more than 1 minute but the green light just keeps flashing. So I thought the device might be defective so I returned it and bought another one. However, weirdly enough, the second device has exactly the same issue - the green light keeps flashing even after I hold the setup button.
Any other idea why this might be happening? Could both cameras be defective?
Thanks!