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Here’s How Long the iOS 12.4.3 Update Takes

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The iOS 12.4.3 update is a tiny maintenance update, but it could still take awhile to download, and install, on your iPhone, iPad, or iPod touch.

Apple’s iOS 12.4.3 update comes with a short list of changes for the iPhone, iPad, and iPod touch models left behind on the company’s iOS 12 operating system.

If you’re moving your device from iOS 12.4.2 to iOS 12.4.3 you’ll get the shortest change log and the smallest download size.

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If you’re moving your phone or tablet from an older version of iOS, say iOS 12.2, the list of changes on board iOS 12.4.3 will be much larger. You’ll also see a larger download size. That’s because the features from the updates you skipped are baked into your version of the update.

While some of you might want to hold off on downloading iOS 12.4.3, most of you will probably want to upgrade today or sometime in the near future.

If you decide to install iOS 12.4.3 on your device you’ll want to set aside some time to get the job done. Moving from one version of iOS to another can cause problems so you’ll want to monitor the download and installation as they make progress.

We can’t tell you exactly how long it will take to download and install iOS 12.4.3 because mileage will vary from person-to-person, device-to-device.

That said, we can help you approximate how much time you should set aside when you decide to download and install iOS 12.4.3 on your phone or tablet.

If you’ve prepared for the iOS 12.4.3 update and you’re connected to fast Wi-Fi, it could take less than 10 minutes to complete. If you haven’t prepared, it’ll take longer.

TaskTime
Sync (Optional)5-45 Minutes
Backup and Transfer (Optional)1-30 Minutes
iOS 12.4.3 Download30 Seconds - 10 Minutes
iOS 12.4.3 Installation6 Minutes - 15 Minutes
Total iOS 12.4.3 Update Time7 Minutes to 1 Hour+

Pre-Installation

Before you initiate the iOS 12.4.3 download you’ll want to prepare yourself and your device. A few minutes of prep can prevent issues and headaches.

If you don’t know how to properly prepare for iOS updates, you’ll want to dig into our pre-installation guide for tips. It highlights what we typically do before we install an update of this size.

Most of you should be able to complete these steps in 30 minutes or less, but everything depends on your skill level and the current state of your device.

If you haven’t backed up your data or researched the changes on board iOS 12.4.3 update, the pre-installation process could take you a lot longer.

You don’t need to follow every single step, but we definitely recommend making sure all of your important data is backed up before you start upgrading to iOS 12.4.3.

Data loss issues are rare these days, but it’s better to be safe than sorry.

iOS 12.4.3 Download

Once you’re prepared, it’s time to start the iOS 12.4.3 download. Again, the exact download size will depend on your device and the current version of iOS.

If you’re currently running iOS 12.4.2 you’ll again see the smallest download size. If you’re on a fast Wi-Fi network, the download could finish up in under a minute. Our download took less than a minute on a high-speed Wi-Fi connection.

If you’re running an older version of iOS, your download will be much bigger and it could take 10 minutes or more to download the firmware.

iOS 12.4.3 Installation

When your device is done pulling iOS 12.4.3 from Apple’s servers you’ll have to initiate the installation process. This will likely take longer than the download.

If you’re moving from iOS 12.4.2 to iOS 12.4.3, the installation might take six or seven minutes to complete. If you’re moving from an older version of iOS, it could take a lot longer. The installation took about six minutes to complete on an iPhone 5s.

If you’re moving from iOS 11 to iOS 12 for the first time, you can expect your installation to take even longer. Perhaps as long as 20-30 minutes.

Your iPhone, iPad, or iPod touch might reboot itself once or twice as the installation process starts finishing up, but don’t be alarmed.

This is perfectly normal and your device will boot up normally once the installation finishes.

Post-Installation

After it’s finished, you might need to spend time setting up Apple Pay, logging into your iCloud account, or signing into your device’s various apps and services.

We recommend spending time checking your important data (photos, music, etc). Make sure everything is where it was before you installed iOS 12.4.3.

We also recommend testing your core apps and services to make sure they’re working normally. Major updates have a tendency to break some apps so you’ll want to poke around make sure they’re good. You might need to install an iOS 12 support update.

You’ll also want to be on the lookout for bugs and keep an eye on your device’s performance in key areas like battery life, Wi-Fi and Bluetooth connectivity.

iOS updates aren’t supposed to ruin your device’s performance, but there’s always a chance something goes wrong. If you do run into an issue with iOS 12.4.3, take a look at our list of fixes for common iOS 12 problems.

4 Reasons Not to Install iOS 12.4.3 & 9 Reasons You Should

Install iOS 12.4.3 for Better Security

Install iOS 12.4.3 for Better Security

If you're on the fence, this is one of the best reasons to install iOS 12.4.3.

If you value your device's security, you'll want to download iOS 12.4.3 in the near future because it brings important security patches for your device. You can read about them (when Apple posts them) right here

If you missed iOS 12.4.2, you get an additional patch with your upgrade. You can read about the security contents of iOS 12.4.2 here

If you skipped iOS 12.4.1, you'll get its security patch with your iOS 12.4.3 update. You can read about that patch right here

If you skipped iOS 12.4, you get its patches with your iOS 12.4.3 update. 

iOS 12.4 brought 19 security patches to the iPhone, iPad, and iPod touch. If you're interested in the specifics, you can read about them on Apple's security site

If you skipped iOS 12.3, your iOS 12.4.3 update carries iOS 12.3's security patches on board. The iOS 12.3 update brought 23 patches and you can read about all of them right here on Apple's site. 

If you skipped iOS 12.2, you'll get its security patches with your version of iOS 12.4.3.

iOS 12.2 brought a whopping 41 security patches to iPhone, iPad, and iPod touch in March. You can read more about the iOS 12.2's patches over on the company's website

It's important to note that Apple's iOS 12.2 update patched up an exploit that allowed websites to use motion sensors to "fingerprint" devices.

The exploit, discovered by researchers in Europe, uses JavaScript to snag data from a device's accelerometer, gyroscope, and magnetometer when the user visits an infected website. If the attack is successful, a device can be tracked around the internet. 

Fortunately, Apple's patched up the issue. If you skipped it, you'll probably want to move to iOS 12.4.3 soon.

If you skipped iOS 12.1.4, you get four important security patches including fixes for a widespread FaceTime eavesdropping bug that lets you call someone via FaceTime and hear the audio coming from their phone before they pick up the phone.

If you skipped iOS 12.1.3, you get some additional patches with your version of iOS 12.4.3. Again, they're baked into your upgrade.

Apple lists a grand total of 23 patches on board iOS 12.1.3 and you can read about all of them over on Apple's website. 

If you skipped iOS 12.1.1, you'll want to install the iOS 12.4.3 update on your iPhone, iPad, or iPod touch today. 

The iOS 12.1.1 update brought 17 patches for potential security exploits. They'll will help protect your phone. You can read about them here.

If you skipped iOS 12.1, you'll get the 24 patches from that update with your version of iOS 12.4.3. If you skipped iOS 12.0.1, your iOS 12.4.3 update brings two additional patches. Both patches are for potential lock screen exploits.

If you skipped iOS 12.0, and you're still running iOS 11.4.1 or below, your iOS 12.4.3 update comes with a longer list of security updates. 

The iOS 12.0 update delivered 16 patches for security issues. You can read about all of them over on Apple's security page.

In addition to those patches, iOS 12 delivers new security features aimed at protecting you and the data you store on your device. These include:

  • Enhanced Intelligent Tracking Prevention in Safari prevents embedded content and social media buttons from tracking cross-site browsing without your permission
  • Suppresses ad retargeting by reducing advertisers’ ability to identify iOS devices uniquely
  • Strong and unique passwords are suggested automatically when creating an account or changing a password in most apps and in Safari
  • Reused passwords are flagged in Settings > Passwords & Accounts
  • Security code AutoFill presents one-time security codes sent over SMS as suggestions in the QuickType bar
  • Sharing passwords with contacts is easier than ever using AirDrop from Passwords & Accounts in Settings
  • Siri supports quickly navigating to a password on an authenticated device 

Long story short, if you store sensitive data on your iPhone, iPad, or iPod touch, you have some really good reasons to upgrade to iOS 12.4.3 today.

2 Comments

2 Comments

  1. Jon

    02/19/2019 at 12:12 am

    You have no idea.
    After my dreadful experiences trying to install this troublesome menace I come on here and it’s purely patronising also to read that according to yourself this update from 12.1.3 to 12.1.4 should be a breeze(10 minutes max)
    Maybe it’s got something to do with the appalling slow recently purchased apple Airport time capsule(802.1AC) wifi?
    Or could be due to software update having no clue as to give me clear info on timeframe for installation(3 hrs-3 days!)
    Actual size of download ranging from 2.3GB-74MB.
    All I know is it’s not me or my internet and this post is of no help at all.

  2. Li

    05/09/2019 at 4:41 pm

    On my SE download took about 30 minutes and the install took about 10 minutes..
    On my 6 it took almost an hour to download
    And the install took about 13 minutes.
    Both have always had all of the updates.

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