I am new here. I have 8120 from ebay purchase. It works fine except my mac does not recongize the 16 bit sandisk. What makes it more complicated is that a PC does recongize it. I worked around it by using a USB reader. In that case the mac does mount the 16 bit chip and I can transfer music file that way. It is hard to figure out why the PC can recongize the chip but the mac can't but the mac can recongize it using a usb reader. I have read about the file:
BB storage Activation new.rar---a bat file that used via the pc to fix the problem with other BB phones in which PC did not
recongize the media card but am a little antsy about trying since the problem is so peculiar. I tested other 8120's at tmobile store and they worked with mac. Any suggestions.