Galaxy s4 help updating

[AC Question]

Hello android central the galaxy s4 is my first android phone and I rooted it with kingo and it was great until 4.4 came out I haven't been able to update because every time it downloads it says update failed after it tries installing. I am on touch wiz I am just rooted I have never flashed I only wanted to delete my battery draining AT&T apps. I called best buy didn't tell them I was rooted and asked if they could force update my phone do you think it will work or am I stuck forever I am on AT&T android 4.3 i337 thanks in advance