Requires root for full function. Some keys can still work without root. No Root s running Jelly Bean (4.1) and newer can also get Button Savior Non Root to get same functions.You will need to upgrade your SuperSU to latest version if you have problem with Home, Back, and Menu keysTop 1 Software key App on Android Market
Top 10 Must have app for root devices
Top 1 Must have app on HTC HD2
Top 1 Software key app with best customization features
Works from 1.5 to 4.0(ICS)If you are afraid of breaking your hardware keys or you have broken keys or you simply just don't have any key on your device, get Button Savior to make your life easier.Button Savior V2.1 is even better. If you have a Kitkat device, you get the ability to turn off statusbar or bottom navigation bar to release more screen area!This app will display a floating software key which can be summoned everywhere anytime. Button Savior 1.1.6 or later now suppports E-INK display with specially made themes provided by XDA member Berlinski.For non root : You can still use power off, Home, Camera, Call , and volume keys or you can get Button Savior non root if you are running Jelly Bean or newer.[Features]
☆ (NEW) Immersive mode and full screen mode to get rid of Android navigation bar completely!
☆ (NEW) PopControl that allows you to add favourite action and use instantly.
☆ (NEW) Hover control ed for automatic Software Button visibility control with mouse or Samsung S-Pen
☆ (NEW) Free floatable trigger icon
☆ (NEW) Swipe to show Button Savior from both sides
☆ Simulates 'Home' 'Back' 'Search' 'Back' 'Recent Task' 'Screen Off' 'Volume', 'Directional Key'
☆ Can set to always open or auto hide based on customizable timer
☆ Two types of trigger action to choose from (Gesture trigger and Click trigger)
☆ Added Camera key and Call key simulation
☆ Customizable trigger position
☆ Also provides themese to e-ink display
☆ Can change it to one click mode for super fast button action in option
☆ Can create shortcut action such as call someone or go to bookmark on Call or Camera keys. (With PRO)
[Not Root?]
☆ Home key is ed
☆ Power key is ed
☆ Volume key is ed
☆ Camera key is ed
☆ Call key is edIF YOU HAVE PROBLEM GRANTING ROOT FOR THIS APP
If your device is rooted and still cannot use keys except home, please update su binary and super apk.IF YOU ARE UNABLE TO UNINSTALL
You need to disable screen off feature first. To disable, go to setting/location secuirty/device to remove Button Savior from the list.Theme contribution list:
(1) Default (XDA member stefen)
(2) Froyo (XDA member hlvl)
(3) Sense UI (XDA member internauta2000)
(4) Honeycomb (XDA member securecrt)
(5) Pen's Ginger (XDA member Pens and DreamS)
(6) Pen's Honeycomb (XDA member Pens and DreamS)
(7) Pen's Sense UI (XDA member Pens and DreamS)
(8) Contrast for E-INK (XDA member OMGWTF_BBQ aka BerlinSki)
(9) Metro for E-INK (XDA member OMGWTF_BBQ aka BerlinSki)
(10) Subtle for E-INK (XDA member OMGWTF_BBQ aka BerlinSki)
(11) K3 ICS (XDA member kam333)
(12) K3 Honeycomb (XDA member kam333)
(13) Rajiv's Windows RT (XDA member rajiv)[This app requires following permission because]
☆ GET TASK: Need to display recent app
☆ VIBRATE: For hepatic
☆ INTERNET: For ads and for shortcut with internet action
☆ ACCESS NETWORK: For ads
☆ MAKE CALL: For direct dial shortcut

// Option A // 5e7015

To Button Savior (Root) mod from happymod.completedownload.net.
You need enable the option "Unknown Sources".
1. Click on the above link to Button Savior (Root) mod APK.
2. Save the file in your device s folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B // 5s5x38

To Button Savior (Root) from HappyMod APP, you can follow this:
1. Open your browser and the HappyMod APK file from happymod.completedownload.net - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android s and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Button Savior (Root) in HappyMod App.