The touchscreen on my LG P970 Optimus spontaneously died & will not work however many times I restart the phone. I was using whatsapp on it as it was running low on power & towards the end it just stopped registering my touch. I initially thought it was out of power but it wouldn't work even after I had it charged. I removed the battery pack & restarted the phone several times to no avail. The volume & power buttons work alright, just not the touchscreen & function buttons lining the base of the screen (menu, home, return & search). Anyone have any ideas as to what may be wrong with it? Much appreciated. Thanks in advance guys!