One more question to ponder while I am at work please.
I have rebooted after flashing the files and am currently at the part where I copy the file to the USB kindle setting before installing it as a NIC.
The guide is referencing file "mmcblk0p1-kt-5.0.0.img" but of course mine is a K4NT and not a K5.
The only files I have all end in the .bin extention. What file should I be using with the 4.0.0?