I installed Mer on the Internal memory of my n810, so I don't think problems could be related to a broken sd card. It's also not related to device being plugged in, since it isn't.

Scid is a program I installed from repositories.

I don't know how to install Liqbase.

Good version of Fbreader could probably just be copied from Fbreader site; I just don't know how to do it. As I already said, good version works fine on n800 and n810.