[Q] T-Mobile Note 3 Update/Rom problems topic

I just bought myself a galaxy note 3. The first thing I did was allow an update from Samsung which I learned was a huge mistake. Something about Samsung using a new bootloader that blocks custom recoveries and roms from being flashed. I have achieved root and unfortunately tripped Knox. If anyone knows how I can get back to 0x0 unmodified i would really appreciate it. I tried flashing clockwork mod recovery using Odin with no luck. Someone found a version of Team Win Recovery that works but won't mount USB storage to be able to install a custom rom like cm12. Since I'm now banned from official updates due to my device being modified I'd really like a way to flash my own roms. Any help would be appreciated!