I have an OM5577 demoboard and tried to install the demo software for a Raspberry Pi 3, OM5577 Raspberry Pi Linux demo image. I allways get a rainbow screen when the Pi is booting. With an other application the Pi is still running. What can I do to find out what the problem is?
rainbow screen mean that the raspbeery starts and the monitor shows a full screen that has every colors like a rainbow. It's the boot screen for all the time and nothing happen.
