How to change APPS login page logo(Oracle Logo) in R12.1.3

Navigate to  $OA_MEDIA top (Ex:- /u01/appl/apps_st/comn/java/classes/oracle/apps/media)

Replace the gif file(FNDSSCORP.gif) with your company logo in $OA_MEDIA folder.

Bounce the Apache
Clear all cookies in client machin
Test the senario.