Update 9/16:
T-Mobile late Thursday announced that it is now safe to download iOS 10.
"Apple has addressed an issue with iOS 10 which was causing T-Mobile customers with iPhone SE, iPhone 6 and iPhone 6 Plus to lose connectivity in certain circumstances," T-Mobile said.
Those who downloaded iOS 10 before Friday can go to Settings > General > About to install the fix. If you have not downloaded iOS 10 yet, feel free to do so at your convenience.
Original Story 9/15:
Heads up, Apple users: If you haven't downloaded iOS 10 yet, you might want to hold off, because the new mobile operating system is causing some people serious headaches.
T-Mobile on Thursday warned its iPhone 6, iPhone 6 Plus, and iPhone SE customers against updating to the new OS following reports of lost network connections. As MacRumors notes, customers of T-Mobile and its prepaid brand MertoPCS are complaining about lost cellular connections after upgrading. The issue may have to do with the combination of installing iOS 10 and carrier updates, the report notes.
T-Mobile CEO John Legere in a Thursday tweet said "Apple is working to resolve the issue with iOS10 for @TMobile customers" and urged users not to download it just yet. Meanwhile, the company's CEO Neville Ray said the problem should be fixed within 48 hours and offered a temporary solution for those who have already downloaded the update: every time you lose your connection, completely restart your phone.
If you have iPhone 5SE 6 or 6+ & already updated to iOS 10 and see issues, temp fix is to restart your phone every time you lose connection.
— Neville (@NevilleRay) September 15, 2016
Meanwhile, some users who attempted to download the update when it was released yesterday wound up with a brick. Apple, however, says that problem should now be resolved. In a statement to BuzzFeed Managing Editor John Paczkowski, Cupertino said the problem affected "a small number of users during the first hour of availability" and was "quickly resolved."
"We apologize to those customers," Apple said, adding that affected users should connect their device to iTunes and complete the update that way.
Here at PCMag Labs, we updated five in-house iPhones to iOS 10 yesterday, and the process went smoothly for all but one handset, which needed to be connected to iTunes to update. Our mobile analyst Ajay Kumar is a T-Mobile customer and had no trouble updating his personal iPhone 6s Plus, so the experience varies.
The mobile OS is causing more than connection headaches, though. The Verge reports a problem that will likely be especially concerning for parents: the new iMessage GIF search feature is "surfacing hard core porn." Yikes!
"A woman who emailed The Verge this afternoon says her eight-year-old daughter, while trying to send a message to her dad, was presented with 'a very explicit image' of 'a woman giving oral sex to a well endowed male.' Her daughter hadn't searched for anything explicit, just the word 'huge,'" the site said.
Apple did not immediately respond to PCMag's request for comment.