I got it going! It was due to flaky connection on the metal pins inside the white connector plug and the wrong wire order. The correct wire order is black/green/white going from left to right. I'm now able to get into the PogoE02 prompt and was able to reset the environment variables and get farther than I had been. Thanks all for your replies!by slyphoxj - uBoot
I have verified that serial ports settings are 115200 / 8 / N / 1 with no flow control. I am using this cable: EBay listing of the cable I am using I cut off the black connectors on the end and wired the black, white and green wires directly to the little metal connectors inside a white 4 pin plug from a CD-ROM audio cable I had laying around since this plug fits perfectly into the serial coby slyphoxj - uBoot