However, bear in mind that applying an earlier build might not always be possible. On the other hand, downgrading the camera’s firmware can recover its functionality in the unlikely event the currently installed version is faulty or the device’s performance dropped after an upgrade. Updating to a newer firmware version than the one already installed on your camera can improve the device’s overall performance and stability, resolve various issues, and add support for newly developed features or enhance existing ones. Optimizes compatibility with select microSD cards by reducing data stream rate to 35Mb/sec while recording in 4K, 2.7K and Protune modes (HERO3: Black Edition only). Fixes forced exposure lock on 0.5 and 1 second time-lapse intervals Corrects HDMI TV preview from low res to high res Enables compatibility with new GoPro App features