The combination of upgrading to iOS 10 and installing the latest carrier updates appears to be causing issues for some T-Mobile and Telstra customers in the United States and Australia respectively, crowdsourced information suggests.

tmobile
A number of T-Mobile and MetroPCS customers claim that once their iPhone loses service temporarily, the device is unable to reestablish a cellular connection unless it is fully restarted or network settings are reset. The issue appears to have started after the latest 25.1 carrier update on iPhones running iOS 10.

MacRumors reader GCHASE1995:

Anyone on T-Mobile that has done the carrier update to 25.1, have you been getting no service? I can't get service at all. I can get it, if I reset network settings. Then if I lose service I can't get it back.

Reddit user Hitokill:

I am in the same boat as many others. If I can stay connected to the LTE network the 25.1 update is fine. However, I work in a building with certain areas that have no coverage. Once I walk in those areas and lose signal, then walk to an area where I normally have full bars I can't get it back on no matter what I do (hard reset, Airplane Mode, etc...) The only fix I found was going into settings and Reset Network Settings. Totally sucks but that is basically what I have to do. T-Mobile rep said he did something on his end too, but didn't fix the issue when it came back.

Meanwhile, several Telstra customers in Australia report that Visual Voicemail no longer works after updating to iOS 10 and installing the latest carrier update. "I have no indication that a voicemail has been left and nothing shows up in the voicemail section," wrote one user. "Voicemails are definitely being left though."

It is unclear if Apple is aware of these issues, but they will likely be resolved in a future software or carrier update.

Top Rated Comments

ovo6 Avatar
115 months ago
That's why I have att :p
Score: 3 Votes (Like | Disagree)
TMRJIJ Avatar
115 months ago
Now who's to blame here?

Apple is probably already "investigating". As usual. Something they prefer over testing prior to rollout.

And they will claim that only a tiny insignificant amount of users were affected. As usual.
Carrier update not Apple update. It's T-mobile's burden to fix.
Score: 2 Votes (Like | Disagree)
sbailey4 Avatar
115 months ago
This is happening to me. It won't automatically reconnect to the network after losing signal. I also updated through iTunes. I'm hoping T-Mobile rectifies this soon. I don't want to have to revert to 9.3.5.
Reverting to 9.3.5 will not resolve it. Its a carrier update not iOS.
Score: 2 Votes (Like | Disagree)
BeauGiles Avatar
115 months ago
A Telstra employee replied ('http://whrl.pl/ReIo1X') in that Whirlpool thread, confirming they are aware of it, and it's not limited to iOS 10.

Just a update – we've narrowed the issue down and it is not specific to iOS 10, we've found it on users with iOS 9 as well. Still working to address it.
Score: 2 Votes (Like | Disagree)
willdude Avatar
115 months ago
Finally acknowledged by T-Mobile, fix on the way...

https://twitter.com/TMobile/status/776466023193030657
Score: 2 Votes (Like | Disagree)
Makosuke Avatar
115 months ago
Now who's to blame here?

Apple is probably already "investigating". As usual. Something they prefer over testing prior to rollout.
T-Mobile is to blame.

Of all the things on an iPhone, the only part that Apple doesn't have control of is the carrier. If T-Mobile pushes out bad settings and there's something wrong with them, that's no more Apple's fault than an app in the app store being buggy. Less than even most there, in fact, since the bug only appears when interacting with an external piece of hardware (the cell tower), at that.

That said, it certainly isn't everyone--I'm on T-Mobile and both of the phones in my house seem fine.
Score: 2 Votes (Like | Disagree)

Popular Stories

A18 Pro Chip

New MacBook With A18 Pro Chip Spotted in Apple Code

Monday June 30, 2025 8:05 am PDT by
Apple is developing a MacBook with the A18 Pro chip, according to findings in backend code uncovered by MacRumors. Earlier today, Apple analyst Ming-Chi Kuo reported that Apple is planning to launch a low-cost MacBook powered by an iPhone chip. The machine is expected to feature a 13-inch display, the A18 Pro chip, and color options that include silver, blue, pink, and yellow. MacRumors...
iPhone 17 Pro Lower Logo Feature 1

iPhone 17 Pro Coming Soon With These 14 New Features

Monday June 30, 2025 1:08 pm PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are less than three months away, and there are plenty of rumors about the devices. Apple is expected to launch the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max in September this year. Below, we recap key changes rumored for the iPhone 17 Pro models:Aluminum frame: iPhone 17 Pro models are rumored to have an...
iPhone Car Key WWDC 2025

Apple Announces 13 Automakers Planning to Offer iPhone Car Keys

Friday June 27, 2025 11:42 am PDT by
In 2020, Apple added a digital car key feature to its Wallet app, allowing users to lock, unlock, and start a compatible vehicle with an iPhone or Apple Watch. The feature is currently offered by select automakers, including Audi, BMW, Hyundai, Kia, Genesis, Mercedes-Benz, Volvo, and a handful of others, and it is set to expand further. During its WWDC 2025 keynote, Apple said that 13...
maxresdefault

Five Features Coming to AirPods Pro 3

Friday June 27, 2025 10:52 am PDT by
Apple hasn't updated the AirPods Pro since 2022, and the earbuds are due for a refresh. We're counting on a new model this year, and we've seen several hints of new AirPods tucked away in Apple's code. Rumors suggest that Apple has some exciting new features planned that will make it worthwhile to upgrade to the latest model. Subscribe to the MacRumors YouTube channel for more videos. Heal...
macbook air spacegray purple

Apple Planning to Launch Low-Cost MacBook Powered By iPhone Chip

Monday June 30, 2025 3:20 am PDT by
Apple is planning to launch a low-cost MacBook powered by an iPhone chip, according to Apple analyst Ming-Chi Kuo. In an article published on X, Kuo explained that the device will feature a 13-inch display and the A18 Pro chip, making it the first Mac powered by an iPhone chip. The A18 Pro chip debuted in the iPhone 16 Pro last year. To date, all Apple silicon Macs have contained M-series...
anker power bank recall

PSA: Anker Recalls Multiple Power Banks Due to Fire Risk

Friday June 27, 2025 4:16 pm PDT by
Popular accessory maker Anker this month launched two separate recalls for its power banks, some of which may be a fire risk. The first recall affects Anker PowerCore 10000 Power Banks sold between June 1, 2016 and December 31, 2022 in the United States. Anker says that these power banks have a "potential issue" with the battery inside, which can lead to overheating, melting of plastic...
Chase Sapphire Reserve Apple Perk Feature

Chase Sapphire Reserve Card Introduces New Perk for Apple Customers

Wednesday June 25, 2025 2:08 pm PDT by
Chase this week announced a series of new perks for its premium Sapphire Reserve credit card, and one of them is for a pair of Apple services. Specifically, the credit card now offers complimentary annual subscriptions to Apple TV+ and Apple Music, a value of up to $250 per year. If you are already paying for Apple TV+ and/or Apple Music directly through Apple, those subscriptions will...
replay all time playlist apple music

Apple Music Debuts All-New Personalized Playlist

Monday June 30, 2025 7:16 am PDT by
As part of its 10-year celebrations of Apple Music, Apple today released an all-new personalized playlist that collates your entire listening history. The playlist, called "Replay All Time," expands on Apple Music's existing Replay features. Previously, users could only see their top songs for each individual calendar year that they've been subscribed to Apple Music, but now, Replay All...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching in a Few Months With These 12 New Features

Thursday June 26, 2025 2:00 am PDT by
Apple's next-generation iPhone 17 Pro and iPhone 17 Pro Max are around three months away, and there are plenty of rumors about the devices. Apple is expected to launch the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max in September this year. Below, we recap key changes rumored for the iPhone 17 Pro models:Aluminum frame: iPhone 17 Pro models are rumored to have an...