I'm not sure if it's true or not, but I've heard that the Kit Kat update is available for T-Mobile G2 owners as of yesterday. I'm also not sure what it's supposed to fix or update. And from what I've seen so far, if the G2 shares its structure with the Nexus 5, then the GPS problem cannot be fixed by software. It's a hardware problem. I've seen multiple videos and articles for fixing the GPS problem on the Nexus 5, and the process usually includes opening the phone and affixing something under the antenna on the back cover to raise it so that it can better connect with part of the phone. Not sure about the G2, but I hope that it can be fixed somehow.