Reports of crashes and reboots have popped up on various online forums, seemingly specific to T-Mobile iPhones. But so far there's no official word on the cause of the problem.
iPhone and iOS news
Some new software tucked into iOS 9 beta will let T-iPhones play with Apple's Continuity feature over T-Mobile's cellular network, not just over Wi-Fi.
But there's a catch: You have to commit to a new smartphone as part of the new upgrade program. Also, only a select number of flagship phones are available for an upgrade.
The two companies are both looking to slice off a bigger chunk of the workplace. Will business users bite?
T-Mobile, GameStop, Firehouse Subs and Acme are among the retail chains now accepting Apple's mobile payment system, according to AppleInsider.
The search giant pulls an about-face and the wireless carrier puts on a dog-and-pony show for April Fools' Day. Also: Microsoft's MS-DOS Mobile, Motorola's premium selfie stick and Samsung's smart knife.
Short version: it took me about 20 minutes to knock about 25 percent off my monthly bill. Plus: Chromebook deal!
"I wouldn't rule it out," John Legere says about emulating Sprint's leasing model, but adds that there are no plans to roll one out in the near future.
The carrier is also guaranteeing that prices won't increase for customers on existing plans -- even if you're on a promotional program.
The no-contract 16GB iPhone 5S, for example, is now shipping for $600 -- down from the $648 the carrier was previously charging.