This whole thing is pretty strange. I'm not sure reliable communication is taking place.
The manual says: Troubleshooting
If the Reader does not function as expected, try the
following steps to resolve the issue.
1 Reset the Reader by pressing the RESET hole
with a small pin or clip slide the power
switch to restart the Reader.
The content and settings stored on the Reader are
not affected by resetting.
Notes
The bookmarks, highlights, handwritten memos, or the
setting information may be deleted by resetting.
The screen will not change after pressing the RESET
hole. Slide the power switch to restart the Reader.
Do not push the RESET hole with a breakable point,
such as the graphite of a mechanical pencil. It causes
the RESET hole to be blocked.
http://docs.sony.com/release/PRS650.pdf
It also mentions the "Charging Stopped"
...