Reason: The downloaded song format may be in WMA format. Some mobile phones can only play MP3 format, not all formats are supported.

Solution 1: Go online to download music files in mp3 format. Currently, all mobile phones support the mp3 format.

Solution 2: If you cannot download the file in mp3 format, you can use format conversion software to convert the file to a format supported by your mobile phone so that it can be read.

Extension: The current mainstream mobile phone ringtone formats include: MMF, WAV, AMR, MIDI, MP3, IMY, RTTTL, M3U, AAC, etc. These ringtone formats have their own characteristics and have different advantages and disadvantages. Among them, ringtones in MMF and MIDI formats are currently the most supported formats by mobile phones. AMR and WAV, as supplements to the first two ringtones, also add a lot of color to mobile phones. In the past, most single-tone ringtone mobile phones used IMY and RTTTL formats. MP3 format is becoming the future development trend.