TAMPA, Fla. — The Federal Communications Commission granted SpaceX conditional approval Nov. 26 to use Starlink broadband satellites to keep T-Mobile smartphone users connected in cellular dead zones across the United States. SpaceX has permission to use T-Mobile’s cellular frequencies on up to 7,500 Gen2 Starlink satellites to provide Supplemental Coverage from Space (SCS), provided it does not interfere with other networks. Of the more than 2,600 Gen2 Starlink satellites in low Earth orbit, around 320 are equipped with a direct-to-smartphone payload, enough to enable the texting services SpaceX has said…