Joke Collection Website - Blessing messages - How to set the ringtone time of SMS on iphone4, the ringtone that comes with it disappears as soon as it rings, which often leads me to be unaware of SMS. Is there an expert answer?

How to set the ringtone time of SMS on iphone4, the ringtone that comes with it disappears as soon as it rings, which often leads me to be unaware of SMS. Is there an expert answer?

Install an itunes on your computer, import your favorite music, then right-click the video music-> Show Introduction-> option, set the start time and end time to your favorite segment (be careful not to exceed 40 seconds), and then confirm. Right-click the song just now, right-click to create AAC version, find the file in .m4a format on the computer after creation, change the extension to .m4r. Add this m4r file to itunes, and then synchronize your mobile phone. That sounds troublesome. It's actually very simple for you to try, hehe.