Sansa Fuse+ crashes Undefined Instruction at E00@FFEC

[lombrozo]

I am new to this. I have installed rockbox several times on this player, best I can get is that it starts OK, but when I try to navigate it crashes with undefined instruction. It sometimes crashes during initial attempt to play a song, if it makes it that far before crashing.
Now I seem to have bricked it and it does not respond to USB cable insertion or power button! Please help!