Anyone here have this issue or know how to solve it?
Have you checked the battery contacts? Mine were not that tight when I got it. A cheeky bend inward fixed it.
Did you have the same problem?
Is there something on the display or is it completely blank?
Already checked the batteries? In some sync modes (sync slave) the POs don’t go to sleep while there’s a cable plugged into the left input jack. The batteries might be drained.