Many users face a situation where they urgently need to update their operating system. iPhone, but there's no stable Wi-Fi connection. This could be due to provider outages, maintenance, or simply a poor signal indoors. The standard access point through the phone's settings menu is blocked in this case, as Apple by default requires Wi-Fi to download large data packets, to avoid wasting mobile data.
Fortunately, the ecosystem Apple Provides alternative methods for installing the latest version of iOS. The primary and most reliable method is to use a personal computer or laptop with the appropriate software installed. This method not only bypasses the Wi-Fi restriction but also often resolves issues if the update freezes or is interrupted mid-update.
In this article, we'll take a detailed look at all available options: from a classic PC connection to using a cellular network on newer versions of the system. You'll learn about the nuances of working with iTunes And Finder, and you will also understand how to prepare your device for the procedure to avoid data loss or errors during the firmware process.
⚠️ Attention: Before you begin any manipulations with the firmware, make sure that your device's battery charge is at least 50%, and that the connection cable is in good condition and transmits data, not just power.
Why does iPhone require Wi-Fi to update?
The restriction on downloading updates exclusively via Wi-Fi was introduced by the developers for a reason. Firmware files iOS Files can weigh from 2 to 6 gigabytes or more. Downloading this amount of data over a cellular network can quickly exhaust a user's data plan or take a significant amount of time if the signal is unstable.
Furthermore, wireless Wi-Fi networks, especially wired connections to routers, typically provide a more stable, uninterrupted connection, which is critical for the integrity of downloaded files. Interrupted downloads of system files can lead to software errors, although modern protection mechanisms iPhone most often they simply suspend the process.
Starting from iOS 12Apple has implemented an option to ignore this warning and use the cellular network, but this feature is hidden and doesn't work on all plans or phone models. Therefore, the computer method remains the "gold standard" for situations when a wireless network is unavailable.
Preparing the device and computer for the procedure
Before you begin the update, you should take a few preparatory steps. This will minimize the risk of errors and loss of important information. First and foremost, make sure to back up your data.
Even if you don't plan to recover your data, having a fresh copy in iCloud Or on your computer, it will give you peace of mind. If anything goes wrong during the update, you can restore all your contacts, photos, and settings to their original state.
☑️ Checklist before updating
It's also important to check the available space on the device itself. Unpacking and installing the update requires temporary space, which can reach several gigabytes. If memory is critically low, the process may fail to start or end with an error.
Updating iPhone via iTunes on Windows
For owners of computers running the operating system Windows iTunes remains the primary tool. Make sure you have the latest version of this app installed, available either through Apple's official website or the Microsoft Store.
After connecting your device to your computer using a USB cable, launch iTunes and wait for it to be recognized. If this is your first time, you may see a prompt on your phone asking "Trust this computer?"
In the program interface, find your device's icon, which is usually located in the upper left corner or in the sidebar. Once you've navigated to the device management section, you'll see a section with information about the current software version. Click the button Check for updates, the program will contact Apple servers.
If a new version is found, a button will appear Download and updateClicking this button will start the process of downloading the firmware to your computer and then installing it on your phone. During this process, the phone may reboot, and the Apple logo with a progress indicator will appear on the screen.
⚠️ Important: Do not disconnect the cable or close iTunes until the process is complete. Interrupting the data transfer may require you to restore your device in DFU mode.
Using Finder to Update on macOS
On computers MacFor devices running macOS Catalina and later, iTunes functionality has been removed and mobile device management has been moved to the standard file manager. FinderThe process here is as simplified as possible and integrated into the system.
Connect your iPhone to your Mac using a cable. Your phone should appear in the Finder sidebar (on the left) under "Locations." Click on it to open the Control Panel. In the main part of the window, under the "Summary" tab, you'll find the software version information.
The steps are the same as in iTunes: click the button Check for updateIf Apple's servers confirm the availability of a new version for your model, the system will prompt you to download and install it. The advantage of a Mac is that drivers are built into the system, reducing the risk of hardware conflicts.
If you have an older version of macOS (Mojave or earlier), you'll still need to use iTunes, which you can download from Apple's website. The steps for the older version are identical to those described above for Windows.
What to do if the computer doesn't recognize the iPhone?
If the connection fails, try replacing the USB cable with a known-good one. It's also worth checking whether the Apple Mobile Device Support driver is installed (on Windows). Try connecting the device to a different USB port, preferably directly to the motherboard, bypassing any hubs.
Update over cellular (iOS 12 and later)
Starting with iOS 12, Apple allowed users to bypass the Wi-Fi requirement, but this method only works if you have a strong 4G/LTE/5G signal and sufficient credit. The system will warn you that the update is being processed over a cellular network.
To activate this feature, go to Settings → General → Software UpdateIf Wi-Fi is turned off or the network is weak but cellular is active, the system may prompt you to continue. In some cases, you may need to force-disable Wi-Fi in Control Center.
It's important to understand that this method doesn't guarantee stability. If the signal is lost during the download, progress may be lost. Additionally, carriers may throttle speeds or block access to update servers on certain plans.
| Update method | Necessary equipment | Stability | Traffic consumption |
|---|---|---|---|
| iTunes / Finder | PC or Mac, USB cable | High | PC traffic (often unlimited) |
| Cellular network | Only iPhones with 4G/5G signal | Average | User mobile traffic |
| Wi-Fi (standard) | Router, Wi-Fi network | High | Home Internet |
Possible errors and solutions
When updating without Wi-Fi, users may encounter various error codes. These are most often related to connection interruptions or insufficient storage space. Codes such as 4013 or 4005 often indicate problems with the cable or USB port.
If the update gets stuck at the "2 minutes remaining" or "Checking for update" stage, try restarting both your computer and phone and then repeating the process. Sometimes, temporarily disabling your antivirus or firewall software on your PC, which can block the connection to Apple servers, can help.
If your device gets stuck in a reboot loop, you'll need to put it into Recovery Mode. Different iPhone models require different button combinations when connecting to a computer. iTunes/Finder will then prompt you to restore your device.
⚠️ Note: Program interfaces and menus may vary slightly depending on the iOS version and computer operating system. Always check the latest support materials on the manufacturer's official website if the default paths don't match.
Frequently Asked Questions (FAQ)
Is it possible to update an iPhone using a Wi-Fi hotspot from another phone?
Technically, this is possible if the second phone is sharing Wi-Fi, but there's a catch. The iPhone may recognize the network as a mobile one and require confirmation of cellular data usage to update. Furthermore, the data will be routed through the SIM card of the sharing device, which can be expensive.
How long does it take to update without Wi-Fi?
The time depends on your computer's internet connection speed (if using iTunes) or your cellular network speed. On average, the download and installation process takes between 20 minutes and 1 hour. USB cable speeds are typically higher and more stable than wireless.
Will my data be lost when updating via computer?
The standard update process (click the "Update" button) preserves your data. However, if you select the "Restore iPhone" option or a critical system error occurs, your data may be lost. Therefore, creating a backup before proceeding is essential.
Why does iTunes say "Not enough disk space"?
iTunes uses your computer's hard drive to temporarily store firmware files before transferring them to your phone. Free up a few gigabytes of space on your PC's system drive (usually the C: drive) to ensure the process is successful.