Stops at Logo Screen

[ShanaHerina]

I'm using the internet when my phone suddenly restarted. But it was stuck on Sony and Xperia Logo. Since then, my phone won't open. Please Help. What should I do and what causes this problem?

[ot]

thank you ...if i have any othe question  i will ask you here .....moreover i will tell you the results so other people will be helped too

[_alexdon_]

Sure,good luck.

[ot]

everything went great now my mobile works again ..... i'd like to ask one more question ....is there anything that i can do to help it improve its performance .....i mean it laggs a lot and i didnt even dowloaded anything !!! thank you a lot again 

[_alexdon_]

You just need to wait some more after the repair,it will stabilise after some days.Also,do not forget to restart the phone regularly to refresh RAM memory.

You are welcome.