[Xperia U] Change the GB for JB worth it?

Well, I discovered that the Sony update to ICS it is not so good as GB, but and what about JB? Worth it? What I am losting staying on GB? Actually when I FINALLY root the Xperia U 2.3.7 and install CWM, my celphone gain some little lags that was anoying me (Even without CWM if you guys think that maybe it could be the problem), nothing is going as I really want, how could I change this? How could I solve that?

I was trying to enable Developer Options (That came with the STOCK FIRMWARE .184 but now all I got is "USB Debugging and stuff) but nothing works for me, and I don't want to change to ICS. What i'm trying to say here it is just "Change the GB for JB worth it?" and I'm justing explaning what i'm passing through...

Someone could advice me? Thank you for all. Sorry for any english error. :fingers-crossed:

mannu420 said:

plzzz help me bro how you root xperia u running on 2.3.7 , i want to root my xperia u too running on 2.3.7 plzzz help mee plzzz mail me or reply me hair xda my email add is=mannu.sandhu421@gmail.com plzzzz plzzz plzzzz help

Click to expand...

Click to collapse

1. Flash firmware .184.
2. Flash this kernel: http://xdaforums.com/showthread.php?t=1766892.
3. Turn on your phone with USB Debugging on, and root with FlashTool, using Superuser (I recommend).
4. Done.

For more information, read: http://xdaforums.com/xperia-u/issues/video-guide-xperia-how-to-unlock-root-t1897826.