I was instructed to doanload these file in order to fix my Sansa MP3 player but when i try to unzip them and open them get an error in XP pro that the file extension is unregogonized. I  choose to go to the internet to find a program to open these files with but get  messages that no program can be found for them. Any suggestions


Bl_Sd_boardSupportSD.rom
Rom File
385kb

and

PP5022.mi4
MI4File
5721kb


Have a look at the LINK below, normally a .bin file is used by the updater application to update the firmware, so you wouldn't open it directly in Windows.  There's a link on the page below to download a firmware updater, not SURE what model of Sansa you have so if it's on the list, I WOULD try using that.

http://kb.sandisk.com/app/answers/detail/a_id/156/~/sansa-firmware-updater-and-firmware-definedThanks for your help. However, I have tried this but when I try to do an update i get a muessage that says there is no Sansa Device connected and that is because i KEEP getting a message on my my Sansa MP3 player that reads " Load main IMAGE failed: Switch to recovery mode" I switch to recovery mode as suggested but when I try to do the update i get the message that nothing is attached !!!?!?! The Sansa MP3 Player is not being recognized ?!!!???! I see.  I've never owned a Sansa product so I'm afraid I can't be of much further help, other than to suggest perhaps trying a different USB port or a different computer, just to be sure.
Have you tried contacting their support, if available?