[Q] Install TWRP on Xperia S

It's as 'simple' as that.

I what to install TWRP so I can Install Android 5.1.1 on my phone.

I have started with a clean install of Android 4.1.2
I did have fw: 6.2.B.1.96 with DooMLoRD Kernel and an old version of CWM and TWRP which came pre-installed in the Kernel.

Firmware: 6.2.B.0.211 (Android 4.1.2)
Boot Loader: unlocked.
Root Access: Yes

I have attempted many different ways to install TWRP

Install TWRP from Google Play.
Installing via adb.
Installing via Android terminal emulator
And the following which is said to install TWRP/CMD on a stock version of JB 4.1.2

The installs of TWRP all complete without errors, but on each reboot there is no blue/pink LED and even tapping the volume up/volume down/ camera button and/or tapping the screen do nothing and the boot just proceeds completion.

C:\TWRP>install

==============================================
= Dual Recovery =
= By Zorbeyd =
==============================================
[ 1. SuperSU ]
[ 2. SuperUser ]
[ 3. Abort ]
Which root app do you use? [1,2,3]?1
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
=============================================
Waiting for Device, connect USB cable now...
=============================================
Device found


=============================================
Step2 : Sending the recovery files.
=============================================
3907 KB/s (3041280 bytes in 0.760s)
4361 KB/s (5314560 bytes in 1.190s)
0 KB/s (801 bytes in 1.000s)
1 KB/s (1732 bytes in 1.000s)
331 KB/s (3397 bytes in 0.010s)
37 KB/s (385 bytes in 0.010s)
4587 KB/s (657704 bytes in 0.140s)

=============================================
Step3 : Setup of dual recovery.
=============================================
Look at your device and grant supersu access
Press any key to continue AFTER granting root access.
-rwxr-xr-x shell shell 657704 2014-01-31 02:52 busybox
Press any key to continue . . .
SUCCESS
Waiting for your device to reconnect.

=============================================
Installation finished. Enjoy the recoveries
=============================================

Press any key to continue . . .

C:\TWRP>

What the fluffy duck am I doing wrong????

Any help would be VERY much appreciated.