The paperclip button is just a restart, not a reset. If there are any signs of life at all, have you tried a manual factory reset?
https://help.kobo.com/hc/en-us/artic...our-Kobo-Touch
Since it's a Touch, though, it could just be that the battery has finally given out. (I'm a bit amazed that any are still alive.) Enjoy your Libra 2!