Pogo V3 installation problem (2 replies)

I followed the steps following...
"4. Create uImage with embedded DTB for booting with stock u-boot."
updating for the October 2017 release...Without any luck.

I have a Pogo-P21 without an internal wifi antenna. So I concatenated with "pogoplug-classic".
Did the resulting uImage contain all components necessary to boot the fresh ext3 stick?

Am I missing something obvious...I hope so...

I could use a little help...thanks