First of all a big thank you to Kartu and everyone else who worked on this. I only now decided to experiment with my 505. I spent several panicky hours where I thought the reader was bricked but in the end prs+ was installed and everything was fine again.
I am slowly reading my way through this huge thread to find answers to my many questions, but I need to ask a few things directly, and hope they have not been answered before.
Strange things I noticed:
-The sony software does not recognize the reader, even though it keeps on launching itself every time I plug it in. (I don't mind that it doesn't work, but I wonder if it has any effect on some other strange stuff, see next)
-Calibre could not see the contents of the reader the first time, but now it can (nothing changed that I know of).
-After installing prs+ all my tags (collections) had disappeared. I reconfigured them in calibre, but now one of the collections, even though it appears, has 0 books in it.
-The first time I browsed the folders from the reader, before updating the tags, one folder did not have its correct contents, but rather displayed a book that actually was in a different place altogether.
-Both times that I noticed, after connecting to the pc, my last page information had disappeared. (Is it a known incompatibility with the sony software or calibre or did i do something else wrong?)
No idea if it's me or prs+ that does the above things. Any comments welcome.
And a question: I read books in greek, but I have to keep their filenames and metadate in english because greek is not displayed correctly in the menus. Is there a way to change the system font to one capable of displaying greek?

and keep up the good work!