when i connect my pearl 8130 via usb to my pc...it will not recognize the device...not on desktop manager or on the pc...it will charge the device though.
i also have an 8330 and it does recognize that device on desktop manager and through the pc.
im having this issue with my 8530 also (first time attempting to connect via usb), i thought i would have to replace the device, is this my only option?