If you have Knox installed in your Samsung device and you try to root the device using Kingo root app will it brick your device ?
Welcome to AE,
Please ask your questions after searching through the internet.
Rooting wont brick your device unless you did in a wrong away,
- Keep the battery full (greater than 75)
- Install appropriate drivers
- Make sure you use offical USB driver
- Follow the procedure.
As per documentation
Kingo Android Root has already rooted more than 100,000 devices，and we never met a bricking situation.
Refer this link.