So i've been using facebook v1.6.4 without issues until i installed v1.7.2 (which FC's). now i deleted 1.7.2 by deleting the icon on the PB icon grid and reinstalled 1.6.4. But it FC's as well. It seems something was left in the PB from the 1.7.2 installation.
Now my pb is rooted, my question is how do i clean a previous installs? Which folders to look?
found solution. just delete the associated application settings folder in /data/data and it will work again. In my case the folder is com.facebook.katana.
