Updating sansa firmwear
The computer treats it as another hard drive, and you can drag and drop files into the San Disk player (or copy and paste). Highlight it (by clicking on it), and press the "Properties" button.
This makes it compatible with any standard operating system, including Windows, Mac or Linux. c.) Now, there should be two tabs; one that says "Synchronize" and another that says "Quality".
While both the European and the American models of these players (for either c140 or c150) feature exactly the same hardware, the wireless, some recording functions and extra high volume settings are sadly disabled in the euro-firmware.
In order to enable this functionality you may download and install the American firmware (see the links section, use at your own risk). In practice, this means you need to have installed the relevant software (Windows Media Player 10).
The c100 series can be used as a USB mass storage device.To use it in this mode, it should be set to MSC, under Settings This is okay, since the only reason we were doing this was to get your playlist to appear in WMP's list of playlists. And sometimes, WMP will say that it cannot transfer a given file because the file is not supported, even if you know for a fact that you are transferring a file that you know is just an mp3. Click the "Quality" tab, and uncheck the box that says "Convert files as required by the device (recommended)". A window will appear that says "Synchronization Settings" at the top.The following steps (a-d) are optional steps you might wish to take before continuing to step 6: I've noticed that WMP tries to convert some files on its own as it transfers them. So..get around this, after completing step 5: a.) In the top of the Windows Media Player window, there is a bar that says "Windows Media Player" with the Windows logo to the left of it. A warning will appear asking you if you are sure you want to uncheck the box and you "wish to continue". d.) Then click on the "OK" button on the "Sansa c140 Properties" window, and "OK" on the "Options" window. Check the box that says "Synchronize device automatically".In that partition, at offset 0x80200, the mi4 file seems to be located.With a more recent Sansa firmware San Disk changed the TEA encryption key (and named their firmware file " The Rhapsody version of the Sansa e200 series uses yet another key that was successfully extracted on February 23, 2007. They name the firmware file pp5022.mi4 (note the lower case).