Sansa Clip Firmware Update

Hi, may I ask for help with my 4Gb Clip?

It was working ok with the 01.01.35 ?  firmware.

This morning I tried the Rockbox utility, and didn’t succeed.

Now the Clip is connected via USB to this computer, and the screen says “Bootloader USB mode”.

 I’ve not been able to get it working at all, and I can’t get it to reload the original firmware, m300a.bin

Thanks a lot,

Sheldon