Eyesey stuck at startup

Hey, my Eyesey seems stuck at startup. Can’t get past the rainbow screen after turning on the unit. Any idea of how to get past this?

Is it stuck on the rainbow screen? or does rainbow show up then disappear? It might be a problem with the SD card. First thing to check is that the card is properly inserted, try using a paper clip to press it back into position if it popped out.

It was stuck on the rainbow screen before properly booting. Moved to a different outlet and monitor and now working again. Who knows! Thanks for your reply.