I love my Diamond, but it has one big problem - I wasn't able to hear it in noisy environments. I realized, that poor sound is somehow related with AudioPara3.csv file in Windows directory. I made some tests with this file and whoaaa... my phone is quite louder now. Now I wish to share it with you. Unzip the file, overwrite the old file with the new one in the Windows folder (make backup before) and soft reset the device. You must hear the difference..