First and foremost you have to download the Indonesian VPN and Openload VPN for Android.
( I recommend to change your facebook language first to Bahasa Indonesia)
After changing your facebook language you have to go to :
(run indonesian vpn then openload vpn for android)
Settings & Privacy in which would be changed into Tetapan & Privasi.
General will be changed into Umum.
Go to Name or Nama.
Nama Depan
Then in the box rewrite your desired name.
Tinjau Perubahan
Input your password.
Then just click Simpan Perubahan and you're done.
you can now change the language of your desired. and bythe way I also recommend to do this in your browser.