We have not! Many are trying. There is a topic started on 4.4 Root trials & tribulations.
KC
NOTE 3 - ROOTED
KC
NOTE 3 - ROOTED
This is the closest I've seen to that and that file can be downloaded here.All, @dandroid7 has reached out to me for help finding a root method. I have successfully found workarounds to root several 4.4 locked bootloader devices and there is a chance I can help. However I need someone to send me the MF1-to-NI2 OTA update.zip if there is one out there. Someone can also try to Odin back to MF1, root, then pull the update and send.
The kernel swap/towelroot method is exactly what I had in mind and I can create the NI2 stock, signed kernel using the MF1 kernel and NI2 OTA but I am missing the MF1-to-NI2 ota.zip (that file you linked to is the MF2 to NI2 ota). I can even work with the MF1 to MF2 ota if someone has that.This is the closest I've seen to that and that file can be downloaded here.
As I've mentioned in that thread, I was able to root an AT&T Galaxy S5 by using Odin to flash a signed version of an older kernel, root with Towelroot, and then restore the original kernel, but I don't think the OTA firmware has what is needed to restore just the kernel to the 4.4.2 version.
Perhaps the patch to the kernel could be applied separately after root is achieved with the previous kernel version but I don't own this model of the Note 8.0 and can't test that.
ramjet73