Another way to retrieve pictures, sample books and audio files:
Making a HARD RESET of the reader:
https://wiki.mobileread.com/wiki/Sony...nd_Reset_Guide
WARNING: A HARD RESET WILL ERASE ALL CONTENT ON THE READER.
1. Power off the Reader Digital Book.
NOTE: If the Reader Digital Book is active, you can slide and hold the power button until the Device Shutdown screen appears and then tap Yes to power it off.
2. On the bottom edge of the Reader Digital Book, using a thin object such as a paper clip, press the RESET button.
3. Turn on the Reader Digital Book.
4. While the screen displays Opening book... , simultaneously press and hold down the Previous Page Turn button and the Size button until the Reset All screen is displayed.
5. In the Reset All screen, press the OPTIONS button to delete all content, restore all factory settings, and clear the DRM authorization state.
As you can read above, all content will be erased, but some content will be restored (sample pictures, sample books, sample audio).
A.