[Motorola Droid RAZR] Ohmster:
Oh I see. No. You never want to do that. Even though the Nav Bar is actually duplicating these keys, you never want to disable hard keys and buttons that are built into the phone. Software keys fail, the device is a computer and it can lock up. But hardware keys are for real and they stay. Since you cannot physically remove these keys to extend the screen length (You cannot alter the physical screen itself, length or any other way.), you keep these keys active and working, in the event that the screen goes black and an app is not responding. You can go into Developer Options and enable "Kill app back button" so that if an app hangs with a black screen, you can long press the Back key to kill the app and escape the recalcitrant app so you return to your desktop. This is a good thing and can save your session. Also throughout the Settings, you can assign other functions to long press on these keys to force the device to respond in the event it hangs or to do other things. So use these keys, enable the app kill feature, and assign other features on these keys as they can save you from a down session.

TIP:

Go into /Settings/Buttons/ and assign some long press features to the hard buttons on the front of the phone. Long pressing any of the 4 built in buttons gives you abilities you do not normally have. To kill a recalcitrant app is a "must have". You have 3 other buttons to assign functions to with a long press. Use them. And remember what these other assignments are by using them often. One feature I like that I use in the camera app is to assign the Power button to take a picture. Very useful if you are using the high res camera pointing at yourself. Assign buttons for useful things you do every day like long press Home for Email or TappaTalk, open your Calendar, or anything you want.

So your answer is no, you never disable any built in keys on the phone. :)

BTW; if you guys find any of this stuff helpful, be a good chap and tap my Thanks button please. It goes a long way when you need help in the future to get a speedy reply and promotes good will. Goodnight. ;)

EDIT:

[MENTION=1472623]d.casper.b[/MENTION] this Chrome voice on PC really works quite well. It clearly recognizes the OK Google and can hear the question even with the TV card playing. Then announces the results in a clear, female voice. Good tip! :laugh:

2nd EDIT:

Man, this long press back key app killer is awesome. I use it when apps go awry but it is actually quite useful. Killing an app really does not harm the filesystem like it does when you do it in Windows. Some of these games do not actually have an exit! No matter, stick your finger on the back button and hold it, then BAM! The app is gone with a nice little "app killed" message. Now that, is what I like! :)

This brings us back to the hard buttons and glad you have them. When the screen goes black or an app just will not quit, the Nav Bar back button is, "gone", you cannot use it. But the physical button on the phone is always there and if you hold your finger on it an enable app kill in dev options, that button is like Raid, kills bugs DEAD! Or, in this case, a misbehaving app. Sure beats rebooting the phone or a hard, forced reboot. ;)