*  Download Magisk APK from github and also MultiDisabler from here.
    *  Move both of them over to a Thumb Drive/sdcard or you can do anything else, we just want to be able to access the Magisk.apk and Multidisabler.zip file in TWRP(because the 
       /data partition is    encrypted, So you can't use that in twrp).
    *  Download the TWRP Tar File from here
    *  Flash it in the AP section of Odin with auto-reboot in options tab disabled.
    *  To boot into twrp Hold Down the Power+VolumeDown button while in DL Mode and as soon as the screen goes blank hold the Power-VolumeUp button and the device should boot into 
       TWRP
    *  After booted into twrp, go to INSTALL tab and Click on SELECT STORAGE and select the USB OTG or MICRO SD CARD depending on which thing you put the MultiDisabler.zip and 
       Magisk.apk on.
    *  Now Locate the MultiDisabler.zip file in your thumbdrive/sdcard and flash it. After that's done also locate Magisk.apk and flash it(while flashing it should show some 
       mounting errors, but don't worry about that).
    *  After the flashing is done, click Reboot to System and after the device is booted Open the Magisk App, Click Next and click on DIRECT INSTALL and click next, After the 
       installation is finished, reboot the device. Now your device should be rooted.