firmware update util can not see ssd...

I am trying to update the firmware of a sandisk extreme ssd (240gb) just purchased from a store  I put the drive in an external enclosure, connected it to the laptop via usb.  The computer (win7) detected the drive and said its ready.  I started the sandisk software but it failed to recognize the drive.  Any idea why?

are you talking about the Linux kernal used for FW update tool? if so i do not think it will work in USB enclosures. IIRC it has to be connected internally via SATA.