The Cyberpunk 2077 Language Pack v1.5-CODEX is a standalone release designed to complement the v1.5 patch for the game. This pack is specifically for users who need audio files for different regions that were not included in their primary installation.  Key Details and Contents 

Changing the language for the Cyberpunk 2077 v1.5 CODEX version generally requires installing a standalone language pack and manually editing configuration files to ensure the settings stick. 1. Install the Language Pack Obtain the Pack : Ensure you have the Cyberpunk.2077.Language.Pack.v1.5-CODEX Selective Installation

Keywords used: cyberpunk 2077 language pack, v1.5, CODEX exclusive, multilingual audio, Japanese dub, Brazilian Portuguese, crack emulator, offline installation, Night City languages.

[HKEY_CURRENT_USER\Software\CODEX\Cyberpunk 2077]
"Language"="en"
"Locale"="ja-JP"  (change to your preference)

Configuration Files: You may need to manually edit specific configuration files to ensure the game defaults to your preferred language on launch:

Selective Installation: Users can choose to download or install only the specific language files they need to save disk space.  Installation and Usage