Having downloaded SamFirm, folow the instruction given of the following page to download the firmware:

https://www.droidviews.com/download-latest-samsung-firmwares-directly-using-samfirm/


Download Latest Official Odin

https://www.droidviews.com/download-odin-tool-for-samsung-galaxy-devices-all-versions/

Install Samsung Firmware

https://www.droidviews.com/install-stock-firmware-on-samsung-galaxy-devices-using-odin/

Thanks!