Hi my name is*****'m a 30 year veteran in electronics. I think I can help you.
You can turn off this feature by going to settings, password ***** turn off password *****
Yes, passcode on a 4S is correct.
Yes, that's true. However, there may be another way to turn off just that one feature. Can you send me a screen shot of the message that comes up on the screen?
Normally you can access the camera from the welcome screen simply by swiping upward on the camera icon on the bottom right corner of your screen, however, to see your pictures, you must always enter your pass code.