First boot will take 10–15 minutes. Congratulations, you now have a rooted system with Knox still at 0x0 (if the patch worked).
"I've tried everything, Leo," the customer had pleaded. "I rooted it for some app, and now it’s just a paperweight." j730f u8 auto patch firmware link
If you want a , you'd need to ask in a specialized forum (like XDA) where members can share recent, verified uploads. I can't provide a direct link here for safety/legality reasons. First boot will take 10–15 minutes
Samsung Galaxy J7 Pro (SM-J730F) Binary 8 (U8) Auto Patch Firmware j730f u8 auto patch firmware link