[Galaxy S 4 Q&A, Help & Troubleshooting] me:
I have the T-Mobile Galaxy S4, with the newest (kitkat) stock update, 4.4.2 . It is not rooted.

I use the pattern draw security to wake up from lock screen. I think it is important to have some such security, so that if one leaves one's phone somewhere by accident, someone else cannot pick it up and find out all kinds of personal and financial information.

Yet, when driving a car, it can be difficult (and unsafe) to draw the pattern, or even more so a pin or password, if one wants to make a phone call, navigate, etc For driving, it would be good to be able to unlock the screen with voice. (One could set an unusual wake-up command (no, not "Hi Galaxy" ;) ), so that others would not be able to wake it up with voice. )

I would like to be able to open from the lockscreen with either the pattern OR voice, depending on the situation.

There is a post in a forum that shows how to do that: http://forums.androidcentral.com/ve...tooth-security-lock-screen-your-note-3-a.html

However, that post is in a forum for Galaxy Note 3.

I tried it on my S4. I turned off the pattern security, and set it to swipe. I followed all the listed steps. Except--one command I could not find on the S4 [Quote from forum post]: LONG PRESS Voice Wake-up to reveal the hidden command> √ "wake up in Secure Lock".[end quote]

I could not long press anything to get that hidden command "wake up in secure lock".

After following all the other steps, with no security, I could wake from the lock screen by voice command. But only with no security, with lock screen set to swipe (which is no security at all).

Once I re-enabled the pattern security (also tried it with PIN), I could not wake the phone by voice any more.

Does anyone know how to get this to work on the T-Mo Galaxy S4? I think it is important to have some security, but would like to be able to wake the phone up by voice while driving.

If it is not possible from the phone's own setup, is there an app one could install that would add that functionality?

One of the secure lockscreen settings is to unlock with voice and face recognition. I would never set that. For one thing, when driving, one would have to stare at the phone for face recognition, not safe. Also, I would not want to have to unlock the phone with my voice every time. For instance, in a quiet place, I don/'t want to have to talk to my phone to unlock it. (And then everyone would hear what one's unlock command is!)

If totally impossible to do with the current update on the S4, is there a way to give suggestions to Samsung, to ask for that feature on the S4? (Which from that other forum post, certainly looks like it is possible on the Note 3.)

This capability would improve both highway safety and phone security. For people should not have to stare at their phone screen to draw a pattern or enter a PIN while driving. But if they therefore turn off lockscreen security entirely, they are compromising their phone security, inviting identity theft, etc. One should be able to have a secure lockscreen that one can open by drawing a pattern (or PIN or password, whichever one prefers) OR a user-set voice command. (In other words, have the lockscreen set to open either way.)

Thank you in advance for your input.