I'm using Samsung Galaxy Ace GT-S5830. More than an hour ago, Samsung-Kies prompted me to install a firmware update. It downloaded the required files and then proceeded to the actual upgrade. Now, since an hour, I'm getting 0% progress on the "Firware update in progress..." screen. It obviously says not to disconnect the phone. The phone shows "Downloading..." It's been like this since an hour. I don't want to brick my phone by pulling the USB cable off. Please suggest something.