Can This Clip+ Be Fixed?

Ok, I replaced m300a.bin with clppa.bin.  But nothing has changed.  When I remove the clip+ from the PC I see nothing on the display except “Plug USB cable”.  Then after turning it off and on again, I see:

"Loading firmware

File not found"

and then again, “Plug USB cable”.

I know that the owner had loaded Rockbox on this and then botched an attempt to remove it.  I hope that might help someone suggest a solution.