August 21st, 2013, 12:55 PM
Join Date: Jan 2010
Location: Winston-Salem, NC
Device(s): Samsung Galaxy S4
Thanked 114 Times in 92 Posts
I believe there is some confusion about your question. When you said "shut down," are you referring to actually powering the unit off or just putting it to sleep (or stand-by?)
If you are talking about starting the phone from a "power off" state (no power, no service, etc...,) then you would have to press and hold the power button until you get a vibration and then it takes a minute (or so) for the phone to get up and running.
If you are talking about "waking" the phone from its stand-by state, a single click of the power button or the home button will wake the phone up.
As for heating up, I use my phone somewhere between heavy and medium and my phone never gets hot. If yours does under just texting use, I would suggest returning it to the carrier and getting it replaced. Before doing so, you may want to do a Factory Data Reset from the recovery menu to see if that helps. When I first got my phone, I was very unimpressed (to the point of returning it for something else.) I decided to do a FDR before taking it back and it made all the difference in the world. After the FDR, everything worked properly, my batter life was much better and the issues I was experiencing all went away.