I just updated the firmware of my m240 (to 2.5.5A).
Now ALL MY MUSIC IS GONE!!!
After the update it rebooted, then said “rebuilding library” then “no files found”. Maybe I missed something, but I don’t recall seeing a message/note/banner/popup saying “This will delete everything”. Is there any way to recover the files? I’m kinda in a bind. I’m currently out of the States using my laptop and all my “original” music files are on my desktop at home.
I don’t know the m200 series in particular but, from what I’ve read about other Sansas, I doubt that updating the firmware will, barring some hardware problem, delete your music files.
One possibility is that the files are there, but they don’t show up in the database because they don’t have ID3 tags.
Have you tried connecting the Sansa to your laptop in both MSC and MTP modes to see what’s there? Also, if the firmware includes a System Info option, as it probably does, what does it tell you about the amount of memory used?
As you are facing the similar issue, it seems that the firmware update probably erased the music database, not the actual files. Try using a data recovery software in MSC mode to see if anything can be recovered. Don’t format the player yet.
If recovery doesn’t work, you’ll need to reload the music. Firmware files are hard to find now, but some forums or archives might still have them.