Install On screen buttons on Xperia Neo V

I am going to give you a workaround to install On screen buttons on your Xperia Neo V.

Requirements:
1) Phone must be rooted and cwm recovery installed.(bcoz cwm recovery is required to flash zip file to your phone.)- check other posts for rooting and installing cwm recovery on your Xperia phones
2) Install root browser lite from play store
Steps:
1) Take a Nandroid backup of your phone before flashing zip from cwm recovery. If any kind of issue happens, you can restore it easily.
2)Go to http://forum.xda-developers.com/showthread.php? t=1657617 and download both attached files.( framework-res.apk(6.9Mb) and OnScreenKeys_4.1.B.0.431_ICS.zip -6.49 MB)
3)Install root browser lite from play store and navigate to system/framework. Find and copy the file framework-res.apk to any folder in sd card(to restore later if any kind of issue happens)
4)Open root browser lite and navigate to downloaded file framework-res.apk
5)Long press on it and chose permissions
6)Tick the following boxes
[*][*][-]
[*][-][-]
[*][-][-]
7) Now move it to /system/
framework.
8)Reboot phone in CWM recovery mode and select install zip from sd card, then select choose zip from sd card.
9)Select the downloaded file and select yes on next screen.
10)Select Reboot your system now.
11)done! You will see an onscreen buttons like shown in screenshot below.
PS: I'm not responsible if you have not done any backup and damaged your phone. Try to replace the framework-res.apk file with the copied one(step 3). If it dont works, restore phone from CWM recovery.