I have a Samsung Galaxy Tab 2 10.1, Android version 4.2.2. When I attempt a software update, the device is unable to do it ("Failed to update firmware. Try again using computer software (Kies) or visit a Samsung service center"). I tried using Kies, device is recognized, Firmware Upgrade and Initialization starts and goes all the way to 100%. At that point, I hear a sound like my device is disconnected from my laptop (even though the USB is still connected), the pop-up showing update status becomes unresponsive (I have to close it through task manager), and according to my tablet and Kies, nothing updated. What do I need to do??? I can't even add up how much time I have spent on this. It's making me crazy!