I entered the recovery menu on my i9195 with volum up + home + power, and there is no sign of knox.
I have the following displayed:
Android system recovery (3e) Volume up/down to move highlight: power button to select. reboot system now apply update from ADB apply update from external storage wipe data/factory reset wipe cache partition apply update from cache
" MANUAL MODE " -- Appling Multi-CSC... Applied the CSC-code : VIP Successfully applied multi-CSC.