Ok thanks for your swift response. How do I change CSC code?I can't be sure for 100%, but I think it will work fine with root. Though, you should check firstly if your device allow to change CSC code to the one which supports built-in call recording to use with system recorder method in Call Recorder. As it's usually much easier to change CSC, rather than getting root on Samsung devices. Also, it doesn't void warranty and doesn't tick knox. So Samsung apps will keep working (Secure Folder, S-Pay, S-Health and others), but after getting root - they are broken forever on this phone. Even after unrooting.