T-Mobile to Release Software Update With LTE and Visual Voicemail Support for Unlocked iPhones on April 5

TmoNews reports that T-Mobile USA has issued an internal memo announcing that it will release a new carrier update on April 5 that will add LTE support for unlocked iPhones running on its network. The update will also bring Visual Voicemail and other features to the devices.

The T-Mobile Carrier Update is a minor iOS software update that enables official iPhone support by T-Mobile. When installed, the software update enables a handful of capabilities like Visual Voicemail, MMS Settings and Network/Device optimizations that customers do not have access to today.

On April 5, the software update will begin being pushed via OTA to all iPhone devices on the T-Mobile network with iOS 6.1.x or higher.

tmonews_iphone_carrier_update
The software update for existing handsets will come one week before T-Mobile officially begins offering the iPhone, although it has for a number of years catered to iPhone users seeking to bring their unlocked devices to the carrier.

iphone_5_tmobile_april_12
While existing T-Mobile customers using unlocked iPhones will be able to access LTE speeds in just a handful of cities, the carrier is working on rapidly building out its LTE network. Existing users will also continue to have some limitations on network access, as Apple will be releasing a tweaked iPhone 5 as part of the T-Mobile launch, with the new hardware providing full compatibility with T-Mobile's network including AWS Band 4 frequencies that are unsupported by iPhone devices sold to date.

Band 4 is where much of T-Mobile's 3G network is housed, an issue that has long forced iPhone users on the carrier to fall back to slower EDGE networks on Band 2. T-Mobile has been working hard to shift its 3G network over to Band 2 to provide greater 3G compatibility for existing customers, but the transition is not yet complete.

Related Forum: iPhone

Popular Stories

Apple CarPlay Ultra instrument cluster themes 01

Apple's CarPlay Ultra Is Here – Does Your iPhone Support It?

Thursday May 15, 2025 5:17 am PDT by
Apple's recently announced CarPlay Ultra promises a deeply integrated in-car experience, but not all iPhone users will be able to take advantage of the new feature. According to Apple's press release, CarPlay Ultra requires an iPhone 12 or later running iOS 18.5 or later. This means if you're using an iPhone 11, iPhone XR, or any older model, you'll need to upgrade your device to access...
Apple CarPlay Ultra instrument cluster themes 01

Apple's 'CarPlay Ultra' Experience Now Available

Thursday May 15, 2025 5:07 am PDT by
Apple today announced that its next-generation CarPlay experience, now dubbed "CarPlay Ultra" begins rolling out today, starting with Aston Martin vehicles. Subscribe to the MacRumors YouTube channel for more videos. CarPlay Ultra is now available with new Aston Martin vehicle orders in the U.S. and Canada. It will also be available for existing models that feature the brand's next-generation ...
CarPlay Ultra Climate Controls

Apple Says These Vehicle Brands Plan to Offer All-New CarPlay Ultra

Thursday May 15, 2025 8:13 am PDT by
Apple today announced the launch of CarPlay Ultra, the long-awaited next-generation version of its CarPlay software system for vehicles. CarPlay Ultra features deep integration with a vehicle's instrument cluster and systems, built-in Radio and Climate apps, customizable widgets, and more. The interface is tailored to each vehicle model and automaker's identity, and drivers can also adjust...
vision pro video recording

WSJ: Some Apple Vision Pro Buyers 'Feel Total Regret'

Friday May 16, 2025 7:43 am PDT by
Apple's Vision Pro headset has left many early adopters expressing dissatisfaction over its weight, limited use cases, and sparse software ecosystem, according to a new article from The Wall Street Journal. In the year following the device's launch, user feedback suggests that it has failed to meet expectations for comfort, software support, and social acceptance. In interviews conducted by T...
iPhone 17 Air Pastel Feature

iPhone 17 Air Could Debut Advanced Silicon Battery Tech

Friday May 16, 2025 8:00 am PDT by
The upcoming all-new ultra-thin iPhone 17 Air could become the first Apple smartphone to adopt advanced battery technology, with Japanese supplier TDK preparing to ship its new generation of silicon-anode batteries by the end of June. According to DigiTimes, TDK CEO Noboru Saito revealed in a recent interview that the Apple supplier has accelerated its production timeline, moving shipments...
iOS 18 Siri Personal Context

Apple Will Reportedly Be More Cautious About Announcing New Features Well in Advance

Sunday May 18, 2025 2:50 pm PDT by
Apple plans to mostly stop announcing new features more than a few months before they are ready to launch, according to Bloomberg's Mark Gurman and Drake Bennett. The pair of reporters revealed this noteworthy tidbit towards the bottom of a lengthy report about Apple's artificial intelligence shortcomings today. This alleged change in strategy comes after Apple was forced to delay its more...

Top Rated Comments

daneoni Avatar
158 months ago
Always found it weird that more carriers didn't/haven't jump on the Visual Voicemail train. Such a useful feature. Ditto for HD Voice.
Score: 5 Votes (Like | Disagree)
DarwinOSX Avatar
158 months ago
Always found it weird that more carriers didn't/haven't jump on the Visual Voicemail train. Such a useful feature. Ditto for HD Voice.
Apple requires carriers to include it at no additional cost. Others, like Android devices, don't, so companies like Verizon charge for Visual Voicemail. Apple also doesn't allow carrier bloatware or branding on their phones unlike Android which is festooned with logos and a crazy amount of bloatware. Verizon even put their logo on the home button of the Note 2

----------

5s is probably right around the corner in June...probably waiting before I make the switch over to TM.
Not sure how people can live with T-Mobile coverage unless its great where you live and you don't travel much. Whatever Verizon's faults are coverage isn't one of them. Especially LTE which nobody is even close to them on including AT&T.
Score: 4 Votes (Like | Disagree)
hexonxonx Avatar
158 months ago
So is this going to be an OTA update or as with carrier updates on AT&T where we connected the phone to iTunes and got the update that way?
Score: 1 Votes (Like | Disagree)
JPark Avatar
158 months ago
Obviously speed does not concern you. Maybe Verizon hits more markets (for now), but AT&T is much faster. And if you aren't on LTE, look out. Data speeds drop off considerably on Verizon. In fact, Verizon is the slowest of the four major US carriers in non-LTE markets.

I haven't done a direct comparison, but I can't believe it's slower than Sprint's non-LTE (assuming no Wi-Max, which iPhone doesn't support and which Sprint is killing off). Sprint's 3G is slower than AT&T's Edge.
Score: 1 Votes (Like | Disagree)
Nermal Avatar
158 months ago
So this https://www.macrumors.com/2013/03/26/t-mobiles-iphone-5-is-a-tweaked-model-a1428-phone-with-aws-support/ isn't a new hardware revision, just software tweaks? Great, else people who bought an unlocked 5 before this would've been burned.

EDIT: Or well, reading carefully, the T-Mobile note doesn't mention it'll add LTE support. Guess I'm wrong and it is new hardware.
The new hardware adds WCDMA 1700 (what T-Mobile calls "4G"). The existing hardware already supports LTE Band 4 and just needs the update.
Score: 1 Votes (Like | Disagree)
Westside guy Avatar
158 months ago
Always found it weird that more carriers didn't/haven't jump on the Visual Voicemail train. Such a useful feature. Ditto for HD Voice.

I used to think this, but over the past few years I've come to realize I almost never get voice calls anymore.

Pretty much everyone is texting nowadays... even my 76 year old mom.
Score: 1 Votes (Like | Disagree)