Apple's iOS 15.4 lets some users in previously unsupported locations download over-the-air iPhone software updates via 4G LTE cellular networks.
iOS 15.4 lets more people download iOS software updates via 4G LTE cellular data
4G
Verizon is shutting down its 3G network by the end of 2022
Back in January, Verizon confirmed that it would be delaying its planned shutdown of its 3G network. And now the company has confirmed when it actually plans to go through with it.
Verizon is delaying shutting down its 3G network again
3G hasn't been the standard network option for years now, and Verizon itself hasn't been activating 3G phones for quite some time. But that doesn't mean the company is ready to shut down its 3G network just yet.
How to optimize 5G on your iPhone for speed or battery life
By default, your iPhone uses the Smart Data mode feature in iOS to ensure that 5G data (and voice) are used only when doing so provides a noticeably better experience. You can manage your 5G settings if you'd like to manually optimize 5G networking on the handset. In this post, you’ll learn how to optimize 5G on your iPhone for either speed or power consumption.
Testing shows using 5G will cost you 2 hours of iPhone 12 battery life
Using 5G networking on Apple's latest shiny drains the battery about twenty percent faster than 4G, according to testing conducted by Tom's Guide. The twenty percent reduction when using fast 5G networking translates into a two-hour hit in terms of battery life versus 4G.
FCC lets carriers get away with lying about 4G coverage
Verizon, T-Mobile, and U.S. Cellular exaggerated the extent of their 4G LTE coverage in official filings to the Federal Communications Commission (FCC), the FCC itself found in an investigation. But FCC chairman Ajit Pai won't take any action against the carriers. Instead, they'll get a stern talking-to, according to Ars Technica.
NetworkManager gives iPhone users more control over cellular radio selection
As you move from one part of town to the next, your iPhone intelligently moves from one cellular connection to another in an effort to maintain the highest-quality internet connection that it can. Unfortunately, sometimes the iPhone favors slower connections with a higher signal over faster connections with a lower signal, and this can impact performance.
Those who’d like to have more control over their handset’s cellular network selection might take a liking to a newly-released jailbreak tweak dubbed NetworkManager by iOS developer NoisyFlake, as it lets you switch between preferred network type(s) on the fly.
Kuo: Apple could complete 5G modem development by 2022 or 2023
Apple could do without Qualcomm's wireless modems in iPhones as soon as 2022.
US cities and states ranked by mobile network speeds
Open Signal, a company that specializes in mapping wireless coverage, conducted a study of LTE mobile network speeds in more than 80 countries around the globe, including the United States, and the results are eyebrow-raising but not really shocking.
You can now download App Store apps up to 200MB over cellular networks
Apple has raised the over-the-air cellular download data limit from 150MB to 200MB.
Security flaws in both 4G and 5G networks let attackers intercept calls & track locations
New security flaws that have been discovered in both 4G and the upcoming 5G cellular networks make it easy for an attacker to eavesdrop on your phone calls and track your location.
Intel unveils its first 5G modem that could power 2020 iPhone
Intel today announced their very first 5G baseband processor.