This tutorial video will show you step by step how to disable the built-in device security on a Samsung Galaxy with Android 7 and 8.
This tutorial works for all Samsung Galaxy phones with Android 7 (Nougat) and Android 8 (Oreo), such as the Galaxy Note 5, S6, S6 Edge, S7, S7 Edge, S8, S8 Edge, S9, S9+, Note 9, J7 Pro, and all other types.