Some versions of the Eclipse AVN669HD firmware will prompt you to select a language after a full factory reset.
If your unit has no built-in English option, you cannot change the language through standard menus. You may need to look for third-party . These services provide a custom SD boot card that overrides the Japanese software with an English interface. Eclipse Avn669hd Change Language
We do not recommend the service menu unless you are an advanced user. Some versions of the Eclipse AVN669HD firmware will
: Use the app to translate the physical buttons around the screen, such as (Current Location/Map) or メニュー Method 3: Professional English Conversion prevent future mishaps:
Once you set the language correctly, prevent future mishaps: