T-Mobile and Starlink recently launched a beta for their direct-to-cell service, offering a unique way to stay connected without additional hardware. However, T-Mobile's list of supported devices does not include OnePlus phones, leaving users of these devices out of the loop. The service also faces some compatibility issues with supported phones, prompting T-Mobile to prioritize improvements before expanding to more devices. This news may disappoint OnePlus users eager to access the latest features.