Today suddenly touch stopped working. I am not able to do anything. Anything means anything. All my account are active and I am clueless what to do.
Before giving this phone to support I want to reset everything.
Objective : How to hard reset if your LG P690 touch is not working.

When the phone is fully off mode, press and hold the Home key + Volume down key + Power key. After some time say 5-10 seconds. You will get LG logo that time release the power key.
And when it will show the hard reset screen then release all the other keys.
And then take a deep breath and wait and finally your phone will be in same state when you have bought the same.