Enter the following code: *#8999*28346# Then Follow this Procedure: 1.Slopgain>ASLOPGAIN_14>MP3(LOUDSPEAKER)>LEVEL 14>511 2.aNALOGGAIN_14>LEVEL 14>7 3.ANALOGGAIN_7>MP3RINTONE>LEVEL7>7 4.MAXIN9877 OUT GAIN>MP3 RINTONE(LOUDSPEAKER)>LEVEL7>31 A menu wiil pop with these options: * VOICE VOLUME * SLOPGAIN * VCFGR * APVMXGAIN * ANALOGGAIN * MICROPHONEGAIN * MAXIN9877 IN GAIN * MAXIN9877 OUT GAIN * SYSPARM TUNE * ETC * Viewer Got To: APVMXGAIN Here you will find some extensions like mp3,aac,etc. Now,I m increasing sound of mp3 so i changed the value of mp3. original value:7168 .i changed it to 27168. now save the setting and play the mp3. Now,ur Phone is will Rock.... I HAVE TRIED AND CHANGED IT TO 999999 YA 6 9'S.ITS WORKING. NOTE: DONOT INCREASE BEYOND CERTAIN LIMIT,MAY DAMAGE SPEAKERS.!! I M NOT RESPONSIBLE FOR THINGS YOU HAVE DONE.