That is one of the forums I was talking about. Originally thought maybe it had something to do with where your phone was made. From what I could tell with limited response it seems all the phones made at plants in China had this issue. Mine was made at a Foxconn plant. Plant F17 to be exact. My GPS works great with no issues. Just wondering how many here after decoding your serial number have GPS issues and are tied to a plant in China instead of a Foxconn plant.