take your.mp file on your computer and change the file extention to.gp , then copy the.gp file to your flash card. 휴대폰에서 .gp 파일을 플래시 카드에서 음악 폴더로 이동하면 작동합니다. this is a work around for the drm required from tmobile to play.mps as ringtones.