https://www.theverge.com/circuitbreaker/2018/8/17/17715006/oneplus-6t-tmobile-us-android-phone-report

We’re still weeks away from the rumored October announcement of the OnePlus 6T, but the Chinese smartphone company’s next flagship might offer a big change from its predecessors: a deal with T-Mobile that would make it the first major US carrier to offer one of OnePlus’ devices, according to a report from CNET.

OnePlus already has some carrier partnerships in Europe, but a T-Mobile deal would be a first for OnePlus in the states, and offer the less-than-well-known company a better chance to get its phones (and brand) out to customers who haven't heard of it before. In the past, OnePlus has sold all of its devices in the US unlocked and directly to customers.