Slackrover

I have found depending on the monitor being used SPI will not find it when leaving program. Once the blue led heartbeat is flashing turn your monitor/tv off, wait a sec or two and turn it back on. This works for me even with Retro Arena and an old plasma tv installed on a usb ssd. I run 2 card readers and 2 usb ssd"s plugged in and can boot any of them from SPI.