This usually happens if the Registry change in Step 2 wasn't applied correctly or if the Loc folder files don't match your registry locale.
If the game crashes, ensure you have the correct version of the executable. Community guides on PCGamingWiki often recommend using specific game version "fixes" for modified language files.
Navigate to your game installation directory (typically C:\Program Files (x86)\Origin Games\BFH or \SteamLibrary\steamapps\common\Battlefield Hardline ). Go to Data \ Win32 \ Loc .