An update is available via Samsung Kies program that is said to address your faulty GPS  and before you download the update, know that T-Mobile has stated not to download the update from Kies and to wait for an official OTA update from them. They posted the following last night on Twitter:

If you haven’t downloaded the update from Kies, we must urge you not to as carriers are not responsible for those trigger-happy individuals. There is no word at the moment which issues T-Mobile is referring to, but we’re not too sure anyone wants to find out either. We’ll keep you guys posted when the official OTA update started hitting devices.

If you have already downloaded the update from Kies, we’re sure T-Mobile or the Android community will have a fix for you soon after the official OTA update.

What issues did the Kies update bring to your device?

Source: Android Phone News