Keyboard issue with xperia sp

[chats89]

When i go to sms and try to type in, the keyboard is acting weird, it opens up sometimes, or it doesn't at all....am unable to type in and send sms.....this is after updating to android 4.3....wallpaper is not showing up, and the mobile is slow now

[_alexdon_]

Check if the same occurs in safe mode:

http://talk.sonymobile.com/t5/FAQ/How-to-boot-your-phone-into-safe-mode/m-p/348008