Share your experience!
I wanna root my device. Now i am on Build Number: 6.1.1.B.1.10. I have some Question about rooting?
1) Do i need to unlock Bootloader for rooting my device?
2) Is rooting is risky for my device?
3) What is the main advantage of rooting?
Thank You 
1) NO
Go here http://forum.xda-developers.com/showthread.php?t=1886460
2) depends on what you do. Don't try to mess up with system files, unless you know exactly what you're doing. Be aware of apps you give root access.
3) You can overcome the disadvantages of stock rom.
These are the things I did with my rooted phone:
Additionally:
you can install CWM recovery and install other roms easily.
http://forum.xda-developers.com/forumdisplay.php?f=1728
Or you can use many MODS which replace the preinstalled system apps and give better funtionality.
Tnx bro 
You're welcome.
You should probably hit correct or helpful answer button, if you feel it helped.
@pradeeprk4: Without unlocking the bootloader if i root my device..is it good or bad? please tell me in details. i have already tried for rooting my device but i cant. So can u help me regarding this issue by giving me a easy and details vedio tutorial for rooting xperia u?
it's good because you can unroot the device never letting anyone that you have rooted the device(can use your warranty without problems). If you unlock bootloader, you may void warranty.
Read this for further details:http://unlockbootloader.sonymobile.com/
The method I suugested above worked for me without problems. you don't need to do any thing special unless your device is not being detected.
Note:
Video tutorial:http://forum.xda-developers.com/showthread.php?p=33470626#post33470626
this is for the same method mentioned above., procedure is from (2:50)
Done with my rooting.... tnx again for helping bro...:)
Another question :smileygrin:
From where can i uninstall the app that were pre-installed?