Increasing Channels on Spektrum NX Transmitters

Would you like to enable 14 channels on your Spektrum NX6 or NX7e RC transmitter? Or perhaps go all the way up to 20 channels on a NX8 or NX10? RC Jim shows you how. Note that before doing this he tried methods shown by others that turned out to be out of date, at least when moving from older firmware versions. This method works!