How do I transfer mp3 onto my Sony ericsson K750i?
a k750 will only play music that is in mp3 format so you need to convert all your music first if you have itunes you can do this just left click on a song and an option should come up to convert to mp3 then when you download it onto the phone it should work fine this is what i have to do and now my phone works fine if you dont have itunes then you can download music converters from the net