Gps not working after latest update

Hello there my name is keith and I have an ATT Note 3 on the latest update and my gps doesn't lock and when it does not drops over and over. I have tried the *#9090# then q then 0000 and the other one and neither of them do anything I just did a full reset. Everything is still the same it worked til the last updat. Can you please help me. I use my gps everyday for work I'm a taxi driver.

Thank