Xperia U Multitouch problem

[CryMore]

Hi, my Xperia U has a problem on multitouch.

When I touch with 2 or more fingers, only the first finger will work.

The strange thing is that it seems that the Xperia U recognizes four fingers but only one works.

I can't zoom in on images, can't play dead trigger, because I can't walk and aim in the same time...

[CryMore]

There are nothing to do now?

[Uliwooly]

I'm sorry, I'm out of ideas

[CryMore]

What is the firmware more updated? to flash on flashtool.

It is possible that the screen has been misplaced? because I was several months without using the phone because the touch was in trouble, and now changed and it is with this problem ...

[Uliwooly]

You left quite a bit of info out, your phone was:

rooted

the digitizer was damaged 

that could be the reason, perhaps the digitizer wasn't installed correctly, maybe a ribbon its loose 

[CryMore]

What is the problem in root with multitouch?

[Uliwooly]

typo, I meant to say, bootloader unlocked, but I'm out of suggestions, perhaps you should contact your local Sony repair center

[krrish]

Is it possible to remove the problem of multi touch by rooting the device.my xperia u also not supports the multI touches. Please help me.