If that same
flickering presents while no video cabling is connected to the projector and
after the power cable has been left disconnected for a couple of minutes, then
we would recommend contacting
our support team with a short video of what is presenting with this
projector and the serial number of that projector for their review.
If it is not, then try
using a different VGA cable to make a direct connection between the computer
and any of the VGA ports on the projector, as well as using a different
computer with the cabling and projector in place.