I have an lg g2 smartphone and i would like to know how to get root privaleges for cms.
You have to root your phone first.
Root privileges are granted with Superuser or SuperSU (whichever is installed on your phone).
Instructions on how to root is beyond the scope of this Forum.
Please visit XDA Forums community for help if needed.
As a reminder, it is not advised to root your phone!
Due to an Android restriction, it is required to have root privileges on your phone for fully functional CMS. But that doesn not mean you should root it.
You should evaluate your need for those additional components/functions and the benefit for rooting your device because rooting is not suggested by any of the device manufacturer and may cause cancellation of your warranty.
Thanks for the advice.