better check n refer back to ur dealer.. glad u found the defect before the warranty ended.. my dealer from buydirect was awesome... always provide me with a technical solution.. really responsible in the product that he sell... maybe buydirect can answer this sort of question... juz try to help u bro...

Should be able to pair and play music. Did you first select MOBILE MEDIA on your APPS > BLUETOOTH > KEYPAD  Most people forgot this important step. Also, don't forget to turn up the volume on your phone.
How many GB is your USB pendrive?  If not mistaken, there is a limitation to it , maybe it is too big, hence it cannot read.