Nokia C3-01

Find "Ringing tone"

Press Menu.

Find "Ringing tone"

Press Settings.

Find "Ringing tone"

Press Tones.

Find "Ringing tone"

Press Ringing tone.

Select your ring tone

Press Open Gallery.
Go to the required folder.

Select your ring tone

Press the different ring tones to listen to them.

Select your ring tone

Once you've found a ring tone you like, press Use.

Save and exit

Press Save.

Save and exit

Press Disconnect to return to standby mode.