The FCC's approval process can be incredibly secretive, since most companies prefer not to leak out any information that could give away the identity of their star products. Sony, on the other hand, is typically the most liberal when it comes to letting us in on the scoop, and its latest device is no exception. In this case, the T-Mobile version of the Xperia Z was spotted with a full spread of external and internal photos along with a detailed user manual (which also gives away the model, carrier association and features such as WiFi calling). If you're still in denial for any odd reason, the docs confirm the inclusion of AWS LTE (band 4) and HSPA+ along with the usual 850/1900 frequencies. T-Mobile still hasn't confirmed that Sony's flagship is coming to its smartphone lineup, but we likely won't have to wait very long before we get an official announcement from the Uncarrier. Head below to check out the docs for yourself.