While there are a rumor about the leaked ROM for Galaxy Grand and Grand DUOS has been circulating recently, is now the Android 4.2.2 ROM is already available on the Internet.
Revealed by SamMobile, the ROM is called as the official test ROM Android 4.2.2 for Galaxy Grand DUOS GT-I9082. The update brings new features such as the transparent notification bar, Smart Stay, Light Effect when unlocked, Page Buddy and Day Dream.
With this new ROM, the Galaxy Grand DUOS can be running more faster than the current ROM (Android OS 4.1.2). In addition it also mentioned the battery endurance also gets increased. But, there is no additional features on the camera. Here are some screenshots and a video pf Galaxy Grand Duos running Android 4.2.2.