A software update version 8.12.124 has been released for the HD HERO2 camera.  This update adds compatibility for the Wi-Fi premium accessories to the HD HERO2 cameras, and also has a fix to allow you to repair connection with the LCD BacPac, should it have ever failed.  Click here to go to the HD HERO2 Camera Software Update page.  Please take a look at the LCD BacPac Black Screen with HD HERO2 camera article for instructions on how to fix your LCD BacPac.