https://www.androidpit.com/how-to-uninstall-knox
if you are on a rooted device :
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Install Terminal Emulator for Android.
Open app, type "Su" then enter.
Then, when a new command line appears, type "pm disable com.sec.knox.seandroid"...and enter.
How to root Samsung Galaxy J5 SM-J500FN Android v6.0.1 Marshmallow
http://www.recovery-mode.com/root/how-to-root-samsung-galaxy-j5-sm-j500fn-android-6-0-1-marshmallow.html
tip : dont forget to activate “OEM Unlock”
https://forum.xda-developers.com/galaxy-j5/help/bricked-sm-j500fn-flashing-trwp-t3578997 https://forum.xda-developers.com/galaxy-j5/development/rom-lineage-os-14-1-samsung-galaxy-j5-t3549552 https://forum.xda-developers.com/galaxy-j5/how-to/guide-want-to-update-to-cm12-1-cm13-t3554058
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