Hey, T-Mobile, it’s amazingly unlikely that anyone could actually get and LTE session with an RSSI of -118 dBm. So amazingly unlikely that it’s bordering the realm of impossibility.
This kind of optimistic reporting of band connectivity didn’t start until a recent carrier update was automatically applied to my iPhone a few weeks ago. Ever since, the phone has never shown anything except “LTE” in every situation I’d have expected it to have been no better than 4G, 3G, or even down to Edge network.
Something fishy going on at T-Mobile.