Unhappy [Q] Root xperia t(lt30p) android jellybean 4.3,fw 9.2.A.1.205 with locked bootloader

Sir,
I want to root my Sony xperia t(lt30p) but I failed using many tricks &rooting softwares.
I have tried many ways to root it but everytime I failed.
I have tried doomlord rooting,bin4ry,mobogenie rooting,kingo android root,unlock root pro &root master andoid app

I m not able to root it
Somebody pls help I will be very obliged for your help.

My phone is:
Xperia lt30p
Android:jellybean 4.3
Fw 9.2.A.1.205
Bootloader unlock allowed:No

Pls pls pls pls pls pls some body help me!!!