Something weird just happened to my sansa...

[DukeLuke]

I was playing jewels while listening to an Ogg Vorbis encoded audiobook (~60kbps, no idea if that matters). After a few minutes the display decided to freeze and fade through various colours. The playback wasn't influenced by that, so I kept watching the display going black. When nothing but a vertical line remained I turned it off...
When turning it on again I was taken aback by how loud it suddenly was! If I had pulled the volume all the way up my ears would've taken serious damage. Apart from the massively increased volume the bass range sounded much better (=louder). The only problem that remained was the stereo image jumping around randomly, but apart from that the sound was perfect.

Unfortunately everything went back to normal again when I connected my Sansa with my PC
And since that incident I'm unable to access the player's folder structure via MSC mode (Which sucks hard because now I'm unable to update Rockbox and add new files other than mp3, wma and bmp. I've tried on 4 different systems btw)

I'm afraid this ain't of much help for the audio DAC coders because I can't provide too much information about what happened, but I decided to share anyways.

I sincerely hope that there's someone who can help me with the MSC mode issue

[X86]

put your sansa on recovery mode,follow the steps below:

 1.-turn on hold
 2.-press the rec button on the left of the sansa
 3.-with the rec button pressed connect the sansa
 4.-when the sansa has been detected you should see a 16MB drive
 5.-after that go to http://daniel.haxx.se/sansa/mi4.html
 6.- then select the mi4 file and the BL rom,those files must be in the 16MB   drive,download them to the 16MB drive
 7.-disconnect the sansa and move the hold button to the off position
 8.- as the sansa is recovered,you need to reinstall rockbox from scratch

[Llorean]

You shouldn't put the BL rom there, it should never be necessary with removing Rockbox. It's only necessary if for some reason you've damaged the in-flash bootloader, not something that Rockbox affects.

[X86]

thank's for the advice Llorean,I just wanted to help someone.

[DukeLuke]

Thanks for the help x86
So.. these are the instructions for unbricking my sansa, right? The thing is that the device isn't actually bricked.. everything works fine except the MSC mode...
But if that's the only way to fix it I'll have no choice. I'll try it as soon as my music is backed up.

[X86]

hmmmm...try to use the "rest all" function

[DukeLuke]

SHIT

I followed your steps and Rockbox is gone now.
But the MSC mode still doesn't work, all I get is an empty removable device

EDIT: FIXED!
I just formatted the whole thing