QUOTE(JJKTP @ Nov 29 2015, 09:38 PM)
Btw, on windows phone (in my case Lumia 430), how do I turn off the screen by just touching screen? Currently im using an apps to do just that.
That's your only option.
And by apps, I take that you meant; you pin a live tile supplied by that app to your start screen and pressing it would lock/sleep the phone? If yes, then yeah that your only option.
QUOTE(JJKTP @ Nov 29 2015, 09:38 PM)
One more thing. I can see that this phone has a double tap feature to turn on the screen. Ia there any way for me to turn on the screen using volume button like in most Android phone?
Nope you can't neither, power button and double tap are your only option.
QUOTE(dgboy @ Nov 29 2015, 10:06 PM)
Look for this last setting under Lock Screen
That's only for phone with on-screen navigation bar which his phone (Lumia 430) does not have.