Put phone in download mode (vol down + power)
Download ODIN 3.09:
Download CF-AutoRoot and root the phone here (instructions are in post 2):
Install and run Triangle Away:
Turn phone off.
Boot into download mode again.
Go back to ODIN:
Download office 4.4.2 firmware from (search for m919, first file: M919UVUFNB4M919UVUFNB4):
Put that .tar file in the pda slot and run.
Missing anything? I know running that .tar will update my bootloader but at this point I don't care.