1. DownloaD Facebook Home AND unzip it u will see 4 file how to install , FB Home, FB, and FB msg .
2. Clear Data and uninstall old FB
3. If ur old fb come with ur Rom u need to Use Root Explorer to Romove it (system/app find fb and delete) only root phone .
4. Install FB home first and 2nd install FB , 3rd install FB msg
5. login ur fb account
6. Click home boton to choose Difualt Home ( Choose FB Home )
7. all done enjoy
Additional File: KhmerUnicode for FB Home