xperia sp android 4.3 problems

[chrisp]

my xperia sp ran android version 4.1.2 (jelly bean) without any problems at all. After installing the new update version 4.3(jelly bean) my phone started having some issues.firstly my screen flickers every second and it is even more annoying when on full brightness.moreover all of the applications got laggy and generally the responding time of my phone increased. i reinstalled the update but these problems keep exist. is there any solution for these or any way i can return to the premium 4.1.2 version when everything was fine?

[_alexdon_]

Just reinstall actual software using sony update service.

[shlomo]

no method, sus, ota or companion, reinstalling 4.3 helped out. same problems. 

[_alexdon_]

By monday,go to a sony service and let them take a look at your phone.

[stanleysaty]

cant find the xperia SP there. any help??

[_alexdon_]

Run SUS in compatibility mode with windows 7.