Take this with a huge grain of salt, but a T-Mo rep just told me that the Lollipop update is coming on April 10th. I contacted them regarding the GPS issue to see if there was a fix in the works. I was then told that a GPS fix is included in the Lollipop update which will be available via OTA on April 10th. Maybe he pulled that date out of nowhere just to give me an answer, who knows. It's interesting to note that April 10th is also the date that the S6 is available on T-Mo. I'm trying not to get my hopes up...but if this information is legit I'll be quite happy.