[Q] Cant Root Help Needed Please

[uiu iuo]

i cant root my xperia play, i tried to root with ZergRush, flashtool and also superoneclick. All not working. i followed the instructions in http://forum.xda-developers.com/show....php?t=1649368 but still could not root. When i use zergRush superuser is not installed. My bootloader is locked and i am using R800i, version 2.3.4 ,kernel version 2.6.32.9-perf SEMCUSer@SEMCHost#1,build number 4.0.2.A.0.58. Help please i tried alot of ways and still look at youtube videos for help but still could'nt root.