So I recently turned on my S192 (Tegra K1 version) and found I couldn't put in my unlock pattern. It kept saying invalid pattern as soon as I moved my finger. I eventually had to put in the pattern using the right stick, which was a challenge. Once I got in, I found the touch screen wasn't very responsive in some applications. Upon further testing, I realized the central third of the screen doesn't respond to touch. Like if I'm on the home screen I can open the top and bottom row of icons but nothing happens in the middle row. I've never had this problem before and have never changed the firmware from the factory version (unless there was a default upgrade from JXD that I don't remember from when I first got it last year). Has anyone else encountered this problem and happen to know a fix? I'd prefer not to factory reset it, but will if I have to. Completely turning it off and back on doesn't seem to have made a difference and battery power is still high. I'm at a loss for what to do.