Wrt1900acs v2 back to original firmware

hi all you please help me to back to orginal firmware lede to orginal firmware i cant back please help ho to back or change to original fimrware thanks all

please heelp ti back to stock firmware hove to do to back

scp the og firmware to your router. Preferably /tmp
Then just do "# sysupgrade -n -F /tmp/FW...[tab-completion/the name u called it].img"