Double-click PATCH_DGS.bat (it may be displayed as PATCH_DGS on your computer) to generate DGS_Episode2_Update.cia Transfer DGS_Episode2_Update.cia to your SD card and install it with FBI Run The Great Ace Attorney on your console - sorry, the Banner can not be translated via a Game Update, but the eManual is (partially) in English :)
Full Answer
Translated up to and including Episode 4, preview of Episode 5 is included.
Translated up to and including Episode 4, preview of Episode 5 is included.
Translated up to and including Episode 4, preview of Episode 5 is included.