teen , can your player still be detected by the MP3 Utilities Upgrade Tool? If so, you will need to try various firmware dumps in the downloads section until you get the right one.
If it can't be detected, you will need to follow the Dead Player Recovery Guide
Here.
About your friend's memory problem, use the MP3 Utilities Disk Tool and select "LOW" level format, then in the Parition & Encrypt tab, slide the slider all the way to the left (min) and click on Format. It should rebuild the memory partition.