how to change ringtone in samsung m20?
['Firstly, open the list of all Applications.', 'Secondly, go to Settings.', 'Thirdly, pick Sounds and vibration.', 'Then, choose Ringtone tab.', 'Select SIM Card which you want to change the ringtone for.', 'Finally, simply choose the one that you like most and click on it to apply the changes.']