I installed rockbox on my clip but i wanted to go back to the original. I did like it was said on the manual i deleted .rockbox folder and changed firmware with the original one. After ejected it from the computer it opened with rockbox screen and said file not found. I formatted it so i thought it would remove everything so i would install the original firmware(i guess that was stupid?) but still it says file not found even sansa updater doesnt see it (but pc does as a removable disk). It's name is rockbox media player at the safely remove hardware.... menu. I know that was stupid to mess with it before reading rockbox forums but this is about firmware i think this can be reversible.Sorry for my english...
ps: also when its plugged in to pc it says "bootloader USB mode"