[Q] flashing official firmware via odin knox 0x1 topic

hey guys.. i recently upgraded my phone from s3 to s5.. not yet familiar with this knox thing.. so im just gonna ask.. if i tripped my knox to knox 0x1.. will i still be able to flash official firmware thru odin? coz i think i read somewhere that once you are already on knox 0x1 flashing official firmware thru odin will fail.. thanks and sorry for the noob question:p