How do I update the original firmware without breaking my Sansa or my Rockbox install?
Note: this will temporarily remove the ability to access Rockbox on your Sansa (between steps 2 and 3). None of your Rockbox settings or music will be removed or altered in any way. • Download the latest Sansa Updater from the SanDisk website and follow the directions to update your Sansa (make sure the USB mode is MSC) • When instructed to unplug your Sansa, hold down the previous track (|<) button when you see the SanDisk logo in order to boot into the original firmware so the update can complete. • Follow the instructions in section 2.2.4 of the Rockbox manual to reinstall the Rockbox bootloader.