Technologies

Download iOS 16.4 on Your iPhone: What to Know Before Updating

Features include 21 new emoji, voice isolation for better phone call quality and more.

This story is part of Focal Point iPhone 2023, CNET’s collection of news, tips and advice around Apple’s most popular product.

Apple has released iOS 16.4 for the iPhone. The latest iOS software update adds several new features, like 21 new emoji (including shaking face, light blue heart and donkey) and a voice isolation feature for cellular phone calls, which blocks out ambient noises to make your voice clearer.

iOS 16.4 also adds Safari-based push notifications, duplicates album support for the iCloud Shared Photo Library, crash-detection optimizations for the iPhone 14 series, VoiceOver support for maps in the Weather app, bug fixes, security updates and more.

Read on for a step-by-step guide to the process of putting iOS 16.4 on your compatible iPhone. You can also check out some of the best existing features on iOS 16 and a few hidden features we were surprised to find. And if you recently got a new iPhone, here are the best iPhone 14 cases so far.

Before you start, is your iPhone even compatible?

Not every iPhone will receive the iOS 16.4 update. You need at least an iPhone 8, which was released back in 2017, to run iOS 16. That also includes the iPhone X, iPhone 11, iPhone SE (second generation and up) and the new iPhone 14.

iPhone 14 Pro and iPhone 14 Pro Max — The iPhone 14 comes preinstalled with iOS 16.

James Martin/CNET

Next, back up your iPhone

Getting your hands on new software can be exciting, but there are precautions you should take before updating. You may not be happy with some of the features that iOS 16.4 has to offer (although you can fix some of the most annoying ones), so you need to be able to downgrade back to an earlier version of iOS 16 for whatever reason — and that requires you to back up your iPhone before you update.

By default, your iPhone should back itself up every time it’s connected to power and Wi-Fi during your regular sleep hours. However, if this backup feature is disabled, you can go to Settings > Your Name > iCloud > iCloud Backup and then hit Back Up Now to back up your device.

Backup page on iPhone — You can (and should) also back up your iPhone on your Mac.

Screenshot by Nelson Aguilar/CNET

Additionally, you can back up your iPhone via Finder on your Mac. Simply connect your device to your computer, open Finder, choose your device and then create a backup. Apple also recommends archiving your backup, so that it’s not overwritten by other backups.

Also, make sure to do these three things

You want the download and installation process to go as smoothly as possible, and the best way to do that is to do the following:

Make sure your iPhone is connected to power. You won’t be able to download iOS 16.4 if you’re under 50% battery, so it’s best to just plug in your phone while you update. And even when you’re plugged in, the battery needs to be over 20%.
Connect to Wi-Fi. You also won’t be able to download iOS 16.4 with cellular data, so connect to a stable Wi-Fi network.
Clear up enough storage space. If you’re running out of storage, you’ll need to clear some up before you can download and install iOS 16.4. Go to Settings > General > iPhone Storage to delete large files and apps.

Here’s our guide on how to get more iPhone storage.

How to download and install iOS 16.4

Now once you have all that set, open your iPhone and go to Settings > General > Software Update, wait a few seconds (or minutes) for the update to appear and then hit Download and Install for iOS 16.4.

iOS 16.4 download page — You can also use Finder on your Mac to download iOS 16.4 on your iPhone.

Nelson Aguilar/CNET

You should then see a loading bar, along with a rough estimate of how long the download process will take. Once the download is complete, reboot your device and wait for iOS 16.4 to install. When your iPhone boots up, follow any prompts and you should then see iOS 16.4 downloaded on your device.

For more on the new OS, here’s a look at our iOS 16 cheat sheet and some of the most annoying features and settings on iOS 16 (and how you can fix them).

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Apple’s New Smart Home Display Delayed Until Fall Over Siri Issues

It has been nearly a year and a half since the company announced the AI-powered product.

Your home could get smarter with Apple’s Siri, but it will have to wait a few more months. Bloomberg reported the iPad-shaped AI home hub won’t be ready until September, several months after the company was hoping to launch it this spring. Apple engineers first need to complete work on a new and improved Siri assistant for the home device, code-named J490, according to Bloomberg.

Apple was hoping to release J490 this month, along with a slew of other new devices, including the iPhone 17e, MacBook Neo, MacBook Air M5, new Pro models, and iPad Air M4. Apple first teased the smart home display in November 2024.

A representative for Apple did not immediately respond to a request for comment.

Siri is Apple’s virtual assistant that uses voice recognition and AI to fulfill a variety of tasks and commands, along with intriguing uses. You might use Siri to find your iPhone — «Hey Siri, where are you?» — or to hear the weather forecast — «Siri, what will the weather be today?» Siri is available on iPhones, MacBooks and iPads. It was launched in 2011 as a feature of the iPhone 4S.

As CNET reported last month, Apple engineers have struggled to push the upgraded Siri assistant out the door. It isn’t fast enough, gets confused by complex commands and doesn’t interact well with other Apple AI models. The company is also wrestling with how much personal data to access to inform the AI, and the new Siri is not yet able to complete in-app tasks, such as finding a photo and posting it to socials, all with one command.

It has been nearly two years since Apple announced that it would give Siri a major upgrade. In the meantime, competitors like Alexa Plus and Gemini for Home have entered the marketplace.

Tech tester Jon Rettinger, whose YouTube channel has 1.66 million subscribers, says the repeated delays in upgrading Siri can «erode» confidence in Apple’s ability to keep up in the AI race.

«Apple as a whole is still one of the strongest companies on the planet. But their AI play is clearly the weakest link in an otherwise very strong chain,» Rettinger told CNET.

Rettinger said he has had issues getting Siri to complete basic commands, such as setting two alarms at the same time, and that it’s a bit of «a mess» right now.

«Having said that, the iPhone has such massive market penetration that I’m not sure it will actually matter in the end. Which is kind of wild when you think about it,» Rettinger said.

Facial recognition for residents

The hardware for the forthcoming smart home display has already been finished. It resembles an iPad and can be either attached to a wall or rest on a half-domed-shaped base, the Bloomberg report said.

The device will be equipped with facial recognition, so when residents walk up to it, they will be shown personalized data such as music preferences, news headlines, appointments, reminders, tasks and so on.

The screen interface will include a bunch of circular app icons, similar to the display on an Apple Watch. The Bloomberg report said the smart home display will be the first of several home devices by Apple. Future products include a tabletop robotic limb with a 9-inch screen, a smart security camera and a Face ID-enabled smart doorbell.