problem with my Xperia T

[hoskat]

Hello everyone
I have a Xperia t for half of a year.
I have updated my phone to 4.3 two months ago.now my screen turn blue in movie and in lockscreen and in setting and several other cases.is this a bug for room or I can solve it?
And other things, after update my phone suddenly restart and show a massage that says: Sim card exit. How can I solve this?

[Hampus]

Hi and welcome to the community! Since you're new please be sure that you have checked out our Discussion guidelines.

Have you tried with another SIM-card in your phone to see if you experience the same behaviour?

Otherwise, I would suggest that you perform a software repair on your phone via Update Service to exclude software related problems:

http://www.sonymobile.com/global-en/tools/update-service/
Download and install SUS at your PC, follow the instructions that appear.