Originally Posted by michaels0007
The normal ringtone setting is Settings menu > Quick settings > Sound > Ringtones
If that doesn't work, then you need to provide a lot more information about your situation.. which you should have done at the outset anyway.
Describe in detail how you have tried to change the ringtone. And the result.
What is your firmware version?
Are you using a custom ROM or custom theme?
Do you have any apps installed that may interfere? e.g. xposed, zedge, etc.
Anything else that seems relevant