T-Mobile CEO John Legere says T-Mobile customers who own an iPhone 6, iPhone 6 Plus, or iPhone SE should not install Apple's iOS 10 update, released on Tuesday. According to Legere, iOS 10 is causing those three iPhone models to lose connection to the T-Mobile network.
Legere's comments come following customer complaints that started circulating following T-Mobile's latest carrier update, 25.1. It was initially believed the problem was the carrier update on T-Mobile's end, but Legere says that's not the case.
Apple is working to resolve the issue with iOS10 for @TMobile customers. Don't download iOS10 if you currently use an iPhone 5SE, 6 or 6+
— John Legere (@JohnLegere) September 15, 2016
Apple is working to resolve the problem, but in the meantime, customers should avoid the update. T-Mobile has offered a fix for those who have already updated to iOS 10 and are experiencing connectivity issues -- restart. According to the company, the only way to resume connectivity is to restart the iPhone each time that it loses connection.
Apple is expected to have a fix ready in the next 24 to 48 hours.
Update: According to T-Mobile, Apple has fixed the issue for customers who were experiencing disconnects.
Good news! iOS 10 fix is ready early. Go to Settings > General > Software Update (or > About if you already downloaded) and update away!
— T-Mobile📱 (@TMobile) September 16, 2016
A T-Mobile Support document instructs users to go to Settings --> General --> About to install a new carrier update, 25.2.
Thursday September 10, 2026 3:58 pm PDT by Juli Clover
T-Mobile will charge customers $5 per month to use iPhone Handoff, an e-SIM feature that allows the same phone number to be used on two separate iPhones.
iPhone Handoff requires carrier support, and at launch, only T-Mobile users in the U.S. and Deutsche Telekom users in Germany will be able to use it.
T-Mobile says customers can use their number across two compatible iPhone models and...
Sunday September 13, 2026 3:00 am PDT by Eric Slivka
Update 10:04 a.m.: iOS 27 is rolling out now, though it may take a bit for all users to see it, so keep checking!
Apple is about to release iOS 27, which will finally deliver more advanced Siri AI capabilities as well as a variety of other refinements, improvements, and new features to iPhones. It's Apple's biggest software update of the year, and Apple announced at Wednesday's iPhone event...
Monday September 14, 2026 9:00 am PDT by Joe Rossignol
Update — 10 a.m. Pacific Time: Apple has released iOS 27.
During its iPhone 18 Pro and iPhone Duo event last week, Apple announced that iOS 27 will be released widely on Monday, September 14.
iOS 27 should be available around 10 a.m. Pacific Time / 1 p.m. Eastern Time today via the Settings app, under General → Software Update.
Below, we have highlighted eight new features and...
If it was an iOS 10 issue, then everyone would be having the problem, not just T-Mobile customers. They pushed a buggy carrier update along with iOS 10 on Tuesday and that's the real culprit here.
