[Verizon Samsung Galaxy Note II] mattnmag:
I'm stumped too. It’s odd to me that Odin mode doesn’t show anything about knox since you have Odin flashed 4.4.2 now… I know that Odin does not fully wipe everything on the phone when flashing firmware….so if you didn’t do a factory reset before initially flashing the 4.3 firmware, I’m wondering if there’s something now leftover that’s interfering with letting the phone boot up properly. If you could just get the phone to boot into stock recovery or even boot up into any ROM, then you could try to wipe cache/factory reset to see if that would let you successfully Odin flash the 4.4.2 firmware again.

Here’s a link to an old thread that goes over all kinds of ideas to try to help others with similar issues... but the thread is from a couple of year ago when the phone was on 4.1.1...so I’m not sure how much it will help.

Here's some other random ideas.... but not sure if any of them will help:

- try flashing just the pit file by itself to see if this would work

-If you have Kies installed on the computer-- make sure it's not running when you are using Odin as it can interfere with Odin working properly (look in your Windows Task Manger/ Processes & Services and stop Kies if you notice it running in the background).

-Try different usb ports on the computer / different cables (only use USB 2.0 ports on your computer as USB 3.0 causes problems sometimes).

-if not doing this already... then confirm the md5 checksums of your downloads to make sure you don't have a corrupted download of the firmware and pit files. (The pit file md5 checksum should be: 6e874ba443d59ea114e48c1a57f3dfaa. The 4.4.2 firmware package md5 checksum (before unzipping it) should be: 8bb341a4db92bb016be4476a2916dd92. After extracting the firmware tar file, I had a md5 checksum of: 426d7efe472ebc22621a241bcde10b02. If you don’t have an easy way to check MD5’s, this tool may work for you: http://www.winmd5.com/).

-keep trying different versions of Odin

- Keep trying to get the phone to boot into stock recovery (hold volume up+home+power buttons for at least a couple of minutes before giving up). If you’re noticing that the Samsung Logo is turning purple in color, then you probably need to let go of the power button and just keep holding the volume up+home button after the phone initially flashes the Samsung Logo.

-You might also take out the battery and leave it out for about 10 mins.....and also hold down the power key on the phone for about 10 seconds or so with the battery out to discharge everything fully. Put battery back in after about 10 mins and try to boot into stock recovery again.

-maybe try uninstalling all Samsung/Android related drivers on the computer and then reinstall them to get a fresh start. (you could use a free program like DevManView http://www.nirsoft.net/utils/device_manager_view.html to see all of the Samsung/Android related devices that are/ were installed on the computer-- and can remove all of them to get a fresh install).

-See if you can get the Verizon Repair Assistant or KIES Emergency Firmware Recovery tools to try to fix the phone (you should be able to get the repair assistant when plugging the phone into the computer and trying to boot it up).

-I don’t think it will work, but you could try flashing root66 from Droidstyle's Restore guide to see if it might let you boot up into Stock Recovery or into the ROM—then try to factory reset/wipe cache, try Odin flashing the correct 4.4.2 firmware again.

I'm pretty much out of ideas at this point.... but I'm hoping you can get it fixed. Maybe someone else will also read through this thread and have some other ideas.

Good luck!!