Xperia P LT22i touch screen not responding and phone keeps on restarting.. thank you

Get one online. Google replacement cell phone screens and you will find many places to shop.

Try a hard reset.

Press and Hold together: Power Button + Volume Up Button to go into service menu from where you can do a factory reset. This will erase all your personal data!!!

You should not be removing and reinstalling a sim. Leave it in once installed. Also, this should be done while the device is powered off!

the lcd is probably defective, you might need to replace it

Is the "sleep after xxx minutes" enabled?

You can get the Sim unlock pin for your Sony Xperia P phone from ClassicUnlocking.com here you need to specify your country,Network name to which it is locked,IMEI number of your phone.Then they deliver unlock pin to you through mail with unlocking instructions.Using this unlocking instructions you can unlock your phone easily.

For touch problems you can try to do touch panel calibration:
http://talk.sonymobile.com/t5/Xperia-J/Touch-screen-issue-in-Sony-Xperia-J/td-p/287066

My dear::":""



mY Dear:
First:
restore your Phone Settings
IF problem not Solved So
Secend Option:
Please Format Your Phone
we can solve this problem but i need you to backup the whole DATA that you have in the phone and perform this reset procedure.
*#7370# or *#7780#
Default security code is 12345
release some memory then it will b opened
your phone or memory card get attack by virus. pls do a format phone and memory card.
If Problem Not Solved So
Very Best Solution:
flash new software install in the phone problem will solved quickly

ur TOUCH PANEL IS FAULTY kindly go for warranty claim or tell me i can give u link for the out of warranty replacements