I have a bricked sansa c200 - my friend tried to install Windows from it (using Flashboot). It has no reaction on any buttons and turn on only when i plug it to computer and shows only a black screen. lsusb says:
SanDisk Corp. Sansa C200 series in recovery mode
Following
http://www.rockbox.org/wiki/SansaE200Unbrick#Manufacturing_Mode i can get it into recovery mode, put there .mi4 and .rom files. But after reboot i had no changes. Can it ever be unbricked?