Confirm your Google accounts and Samsung Cloud profiles are completely unlinked from the device configuration menu to negate Factory Reset Protection interference. Flashing Instructions for J730F U8 Auto Patch Firmware
Click on each slot button in Odin and select the corresponding file from your extracted firmware folder: j730f u8 auto patch firmware link
Backup all critical personal data as this process wipes the device. Charge the battery to at least 50%. Confirm your Google accounts and Samsung Cloud profiles
You do not need to manually patch the certificate via SuperSU or Magisk. j730f u8 auto patch firmware link
Grab the official Samsung Smart Switch or standalone driver setup. Step-by-Step Installation Guide