The update does not kill the player. Really.
A screwed-up update–if you disconnected partway through, or there was a computer glitch–might mess with the player. But in that case you could just go to the update thread here:
http://forums.sandisk.com/t5/Fuze/Sansa-Fuze-Firmware-Update-01-02-31-amp-02-03-33/td-p/139175
and follow the instructions for manual updating–basically download the firmware, unzip the zip file and drag the file that starts with Fuze and ends with .bin (like FuzeA.bin for version 1 players) onto the player’s driveletter. If you don’t know which version your Fuzes are, just try both versions–only one will work. Drag it over, disconnect, let it update.
You can even find older firmware on the SanDisk website if you really think the new one is evil. But it’s not. Try Tapeworm’s reset first.
