I recently did software update for my s4 and now when i try to write a text message and select a recipient by beginning to type there name it wont pull up my contacts. I have to actually select my address book and scroll the list that way. Also the software update is causing me to continuosly get kicked off wifi because it says i have slow wifi internet connection. It causes me to not realise ive been kicked off wifi and i keep going over my data.