Originally Posted by mohabmoka
hello all , i want to know how to assign any app for fb button , im rooted and i had removed facebook and facebook for htc sence
Make a backup from your current rom,
open "system.yaffs2" img by "Yaffey" software,
go to "/usr/keylayout/" directory,
open files with a text editor (Notepad++ is the best),
you should find your solution in these file...