I have the same model you do, and the available update should be 001031. That is the update that finally fixed my netflix probelms.
First I went to the samsung smart tv homepage
2.I clicked on source
3.I clicked on "TV" in the source section
4.then I clicked menu
5.I scrolled down to software update
6.clicked update
7.waited a few minutes while the update ran it's course
8.changed from "TV" source back to my original source (for me it is HDMI2)
9.netflix worked
I do agree samsung has been pretty bothersome and I had to live chat and call them twice before I finally reached the conclusion to all this choas!
