How get root access for Android (custom rom)

Do you know? The Android Marshmallow and NOUGAT (CM ROM) it was already rooted. And you just need to open the access to Grant root only.

   And now I'm going to show you how to get the root access. follow the steps...

1. Open settings 
2. Go to About phone
3. Click on Build number about 5 times
4. Go back to Settings
5. Open Developer
6. Scroll up and click on root access
7. Select the apps and ADB
8. Done

Watch the video tutorial