5iDownloadblog reveals some new iOS 5.1 strings that include references to "4G".

“4G_ON_CALL_CANCEL” = “Cancel”;
“4G_ON_CALL_OK_DISABLE” = “Disable”;
“4G_ON_CALL_OK_ENABLE” = “Enable”;
“4G_ON_CALL_WARNING_DISABLE” = “Disabling 4G will end your phone call. Are you sure you want to disable 4G?”;
“4G_ON_CALL_WARNING_ENABLE” = “Enabling 4G will end your phone call. Are you sure you want to enable 4G?”;
“4G_ON_FACETIME_4G_WARNING_DISABLE” = “Disabling 4G will end FaceTime. Are you sure you want to disable 4G?”;
“4G_ON_FACETIME_WIFI_WARNING_DISABLE” = “Disabling 4G may end FaceTime. Are you sure you want to disable 4G?”;
“4G_TEXT” = “Using 4G loads data faster, but may decrease battery life.”;

The site suggests these may have been put in place for true 4G ("LTE") in the next iPhone.

While we do believe the next iPhone is likely to get LTE, our guess is that these 4G strings were put in place at the same time to reference the updated 4G indicator that Apple also included in the iOS 5.1 update. Existing iPhones now show "4G" at the top of their screen when they are on AT&T's HSDPA+ network. We expect Apple will continue to distinguish the faster LTE networks by specifically calling them "LTE" as they do on the 3rd Generation iPad.

We also don't think references to 4G and Facetime are necessarily predictive. Apple has had strings in the past suggesting that Facetime might work under cellular data, but the restriction appears to be carrier imposed rather than a technical issue.

Top Rated Comments

2 Replies Avatar
181 months ago
[url=https://cdn.macrumors.com/im/macrumorsthreadlogodarkd.png]Image (https://www.macrumors.com/2012/03/22/more-4g-strings-found-in-ios-5-1/)[/url]


[url=https://cdn.macrumors.com/article-new/2012/03/5.1-Network-Strings-Plist-150x225.jpg]Image (https://cdn.macrumors.com/article-new/2012/03/5.1-Network-Strings-Plist.jpeg)

[/url]iDownloadblog (http://www.idownloadblog.com/2012/03/22/ios-5-1-4g-lte-iphone/) reveals some new iOS 5.1 strings that include references to "4G".The site suggests these may have been put in place for true 4G ("LTE") in the next iPhone.

While we do believe the next iPhone is likely to get LTE, our guess is that these 4G strings were put in place at the same time to reference the updated 4G indicator (https://www.macrumors.com/2012/03/07/ios-5-1-adds-4g-indicator-to-iphone-4s-status-bar-for-att-hspa-coverage/) that Apple also included in the iOS 5.1 update. Existing iPhones now show "4G" at the top of their screen when they are on AT&T's HSDPA+ network. We expect Apple will continue to distinguish the faster LTE networks by specifically calling them "LTE" as they do on the 3rd Generation iPad.

We also don't think references to 4G and Facetime are necessarily predictive. Apple has had strings (https://www.macrumors.com/2011/06/08/apple-appears-set-to-support-facetime-over-3g-in-ios-5-but-will-carriers-follow-suit/) in the past suggesting that Facetime might work under cellular data, but the restriction appears to be carrier imposed rather than a technical issue.

Article Link: More '4G' Strings Found in iOS 5.1 (https://www.macrumors.com/2012/03/22/more-4g-strings-found-in-ios-5-1/)



The fact that a 4G iPhone will be coming soon is no suprise.
The REAL NEWS here is this line...

“4G_ON_FACETIME_4G_WARNING_DISABLE” = “Disabling 4G will end FaceTime. Are you sure you want to disable 4G?”;

Official Facetime allowed by Apple over 4G.
No more wifi-only facetime! (sans jailbreak) :D
Score: 5 Votes (Like | Disagree)
soco Avatar
181 months ago
That LTE will be awesome for the 20 minutes it takes for the battery to run out.
Funny, just like how the new iPad drains faster on LTE than the iPad 2 did on 3G. Right?

...right? :rolleyes:
Score: 4 Votes (Like | Disagree)
jbob Avatar
181 months ago
4 'G Strings' in iOS

I won't be supporting it ... filth !
Score: 3 Votes (Like | Disagree)
3282868 Avatar
181 months ago
From what I understand, Apple did have a new LTE iPhone in the pipeline for last year. The 4S was a backup "plan" as Apple was experiencing difficulties with battery life using a triband Qualcomm LTE/GSM/CDMA chip and faster ARM. As an iOS developer, I recall murmurs of "Siri" (at the time the name was not known, but the implementation was hinted to us) being available for the 4 model. In the end, Apple scrapped the LTE model and pushed the 4S with "Siri" exclusivity for consumer marketing as Apple PR believed consumers would care more about a feature such as "Siri" than newer internal components.

Keep in mind, months before the 4S release many case manufacturers obtained [supposed] leaked iPhone designs and spent thousands on case production. Apparently the design followed the tear drop tapered design of the iPod Touch and iPad, with an aluminum back and redesigned antennae. Makes sense to have a uniform device line.

Whether this is true or not, we'll never know. Add into this AT&T's throttling just before the iPhone release (perhaps AT&T was panicked over it's lacking 4G infrastructure which lead to widespread throttling of their 3G band, not knowing what to expect from Apple), as well as the 4G strings indicated in older iOS 5 IPSW's. Personally, I believe there was a 4G device that was intended for release, but Apple wanted to avoid another controversy after "antennae-gate" and played it safe. :)
Score: 3 Votes (Like | Disagree)
SkippyThorson Avatar
181 months ago
That LTE will be awesome for the 20 minutes it takes for the battery to run out.

For a split second I was insulted that you said that, but then I realized it was funny because it was partly true. :p

I'm sure the next iPhone will include a battery improvement like usual.
Score: 3 Votes (Like | Disagree)
soco Avatar
181 months ago
To be fair, the new iPad's battery has a greater capacity than some macbook batteries (Macbook air rev a,b, and c come to mind).
What's your point? The iPad barely grew in thickness to accomodate this. Are you saying if the iPhone thickens a bit to accomodate the same on a smartphone scale, you won't buy?
Score: 2 Votes (Like | Disagree)

Popular Stories

imac video apple feature

Apple Unveils First New Products of 2026

Monday January 26, 2026 1:55 pm PST by
Apple today introduced its first two physical products of 2026: a second-generation AirTag and the Black Unity Connection Braided Solo Loop for the Apple Watch. Read our coverage of each announcement to learn more:Apple Unveils New AirTag With Longer Range, Louder Speaker, and More Apple Introduces New Black Unity Apple Watch BandBoth the new AirTag and the Black Unity Connection Braided...
iPhone 5s

iPhone 5s Gets New Software Update 13 Years After Launch

Monday January 26, 2026 3:56 pm PST by
Alongside iOS 26.2.1, Apple today released an updated version of iOS 12 for devices that are still running that operating system update, eight years after the software was first released. iOS 12.5.8 is available for the iPhone 5s and the iPhone 6, meaning Apple is continuing to support these devices for 13 and 12 years after launch, respectively. The iPhone 5s came out in September 2013,...
Apple Creator Studio

Apple's Next Launch is Today

Tuesday January 27, 2026 2:39 pm PST by
Update: Apple Creator Studio is now available. Apple Creator Studio launches this Wednesday, January 28. The all-in-one subscription provides access to the Final Cut Pro, Logic Pro, Pixelmator Pro, Motion, Compressor, and MainStage apps, with U.S. pricing set at $12.99 per month or $129 per year. A subscription to Apple Creator Studio also unlocks "intelligent features" and "premium...
Second Generation AirTag Feature

Apple Unveils New AirTag With Longer Range, Louder Speaker, and More

Monday January 26, 2026 6:07 am PST by
Apple today introduced the second-generation AirTag, with key features including longer range for tracking items and a louder speaker. For those who are not familiar, the AirTag is a small accessory that you can attach to your backpack, keys, or other items. Then, you can track the location of those items in the Find My app on the iPhone, iPad, Mac, Apple Watch, and iCloud.com. The new...
Apple Logo Black

Apple Just Made Its Second-Biggest Acquisition Ever After Beats

Thursday January 29, 2026 10:07 am PST by
Apple today confirmed to Reuters that it has acquired Q.ai, an Israeli startup that is working on artificial intelligence technology for audio. Apple paid close to $2 billion for Q.ai, according to sources cited by the Financial Times. That would make this Apple's second-biggest acquisition ever, after it paid $3 billion for the popular headphone and audio brand Beats in 2014. Q.ai has...