Yes I'm on 4.4 bootloader. I flashed the tmobile 4.4 nb4 tar. via odin. Flashed CF auto root n9005 version via Odin, and then flashed the TWRP .tar that @bigbiff posted via odin as well. Then in TWRP flashed the latest Philz recovery zip that works with 4.4 bootloader (thats my preference, I like PhilZ.) Then just downloaded and installed Echoe. By the way I had no idea International 4.4 Roms were sooo much faster than ours...its quite noticeable. WIFI and everything works out of box. no need to flash any kernels or anything.