Samsung start Android 4.1.2 updates for the Galaxy Ch@t. The Android 4.1.2 update is only avaiable in Spain at the moment. You can update your device by using KIES or Samsung's over the air systems. Android 4.1.2 called Jelly Bean gives your Android device a extra boost in perfornance and battery lifetime. The Galaxy Ch@t uses a 3.0′ TFT display a 2 megapixel camera and a 850 MHz processor.
Information about the firmware: