Will Rooting through Kingo Brick the device? 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 ?
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Root

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.


Kingo Root

As per documentation


  Kingo Android Root has already rooted more than 100,000 devices，and we never met a bricking situation.


Refer this link.