Owning an Apple smartphone means regularly receiving operating system updates, which bring not only new features but also critical security patches. However, users often encounter situations where their home wireless network is unavailable, unstable, or has data restrictions, making the standard OTA (Over-The-Air) procedure impossible. In such cases, alternative methods come to the rescue, allowing you to install the latest version. iOS or iPadOS using a wired connection to a computer or even via a cellular network.
Modern synchronization technologies allow you to flexibly manage the process of installing new software, bypassing the limitations of your wireless router. iPhone It can communicate with desktop computers running Windows or macOS using a Lightning or USB-C cable to transfer installation files. This is especially important for owners of older models or devices with limited internal storage, where directly downloading firmware may be difficult.
In this article, we will examine in detail all the available methods for performing an update without Wi-Fi, paying special attention to the nuances of working with iTunes And FinderYou'll learn how to prepare your device, which cables are best to use, and what to do if the process is interrupted. It is important to understand that a power outage while writing system files can render the device completely inoperable, requiring complex recovery. Let's look at each method step by step so you can choose the one that best suits your situation.
Preparing the device and necessary tools
Before you begin manipulating the system software, you need to ensure your hardware is ready for use. The lack of a wireless connection places certain demands on the stability of the physical connection, so cable quality is paramount. It is recommended to use the original cable. Apple or a certified accessory with marking MFi (Made for iPhone), as cheaper alternatives may not provide sufficient data transfer speed or current.
You'll also need a computer: this can be a Mac running macOS Catalina or later, or a Windows PC (or older Mac) running the latest version of macOS Catalina. iTunesMake sure you have sufficient free space on your computer's hard drive, as iOS installation files can take up between 2 and 6 gigabytes depending on your device model and operating system version. We strongly recommend backing up your data before beginning the process to avoid losing important information in the event of unexpected errors.
⚠️ Important: Make sure your iPhone's battery is at least 50% charged, or connect it to a power source throughout the update process. Sudden power loss during the update may damage the software.
Check for free space not only on your computer but also on your smartphone itself. Although updating via a computer downloads the main files to your PC, the system still requires space for temporary files and unpacking archives. If the storage is full of photos or videos, it's best to temporarily transfer some of them to an external drive or cloud storage.
☑️ Check before updating
Updating via iTunes on Windows and older macOS
For owners of computers running Windows or macOS Mojave and later, the main tool remains the program iTunesThis method is the classic and most reliable way to flash a device without using Wi-Fi. First, you need to launch the program and make sure it's updated to the latest version available on the official Apple website or through the Microsoft Store, as older versions may not support new models. iPhone.
Connect your smartphone to your computer using a cable and, if prompted, trust the computer on the device's screen by entering a digital passcode. In the iTunes interface, find your device's icon, which usually appears in the upper left corner or sidebar, and click it to access the control menu. Here, you'll find the section you're interested in. Review, which displays basic information about your phone, including the current iOS version and available updates.
Click on the button Check for updatesThe program will contact Apple servers via your computer's wired internet connection and notify you if a new software version is available. If an update is available, select the option Download and updateUnlike the wireless method, in this case the firmware file is downloaded to the computer, unpacked, and transferred to the iPhone, significantly reducing the risk of errors related to network instability.
- 📱 Make sure your iPhone screen is unlocked during the initial connection stage.
- 💻 Close other heavy applications on your computer to allocate maximum resources to iTunes.
- 🔒 Do not disconnect the cable until the process is complete and the device automatically reboots.
- 🔄 If the update doesn't start, try restarting your computer and relaunching iTunes.
During the installation process, a progress bar will appear on your iPhone's screen, and your computer may prompt you to confirm your actions several times. Don't be alarmed if your iPhone's screen goes blank or the Apple logo flashes several times—this is normal system behavior as the system partitions are being reorganized. The key is to remain connected and wait until your device fully boots into working mode.
Using Finder for Mac Owners (macOS Catalina and later)
With the release of the operating system macOS Catalina Apple has retired iTunes, dividing its functionality between several apps. Mobile device management, including software updates, has now been completely moved to the standard file manager. FinderFor Mac users, this means even deeper integration and typically faster data transfer speeds compared to their Windows counterparts.
Connect your iPhone to your Mac using a cable and open a Finder window. You should see your smartphone in the sidebar under "Locations." When you first connect, the system may ask you to trust both devices. Once authorized, go to the "Places" tab. Main (General) in the device management window. Here, in the software version information block, you'll find a button Check for updates.
The workflow is almost identical to iTunes: the system checks Apple servers, downloads the update package to your Mac, and installs it on your phone. The advantage of using Finder is that drivers are optimized for Apple devices, which sometimes avoids sync errors common with third-party software. Furthermore, the Finder interface is more minimalist and intuitive, reducing the risk of accidental user error.
⚠️ Important: If your Mac is connected to the internet via Wi-Fi and you want to update your iPhone without Wi-Fi on the phone itself, make sure your computer has a stable connection. If the problem is the lack of a Wi-Fi router, use an Ethernet cable to connect your Mac to the network or share your Android smartphone's internet connection via a USB modem.
In some cases, Finder may prompt you to create a backup before updating. Don't ignore this prompt, especially if you're planning to install a major iOS version (for example, upgrading from iOS 16 to iOS 17). Backing up will take additional time, but it will keep your data safe.
What to do if Finder doesn't detect your iPhone?
If the device doesn't show up in Finder, try using a different USB port, preferably directly on the motherboard rather than through a hub. You may also need to replace the cable or restart the usbmuxd service on your Mac using the Terminal command: killall usbmuxd.
Update over cellular (iOS 12 and later)
Many users don't know this, but starting with iOS 12, Apple introduced the ability to update software directly over a 4G/LTE/5G cellular network, without the need for Wi-Fi or a computer. This solution is ideal for situations where a computer is not available and your home internet connection is down. However, to use this method, your data plan must have sufficient data, as updates can be large.
To activate this feature, go to your phone settings by following the path Settings → General → Software UpdateIf the system detects an available update but your Wi-Fi is disabled or weak, it may prompt you to download it over a cellular network. If this isn't automatically offered, you can try a trick: temporarily disable Wi-Fi in Control Center (swipe down from the upper-right corner) and refresh the update page.
It's important to note that to download large updates (over 150-200 MB), the system may require the user to explicitly consent to use cellular data. This is a security measure designed to protect subscribers from unintended charges. Ensure that cellular data is enabled in the app's settings. System services Background data transfer is allowed.
- 📶 Make sure your cellular network signal is stable (preferably 4G or 5G).
- 📉 Disable background downloads of heavy apps during updates to avoid overloading your bandwidth.
- 📱 Avoid using your phone actively while downloading to avoid interrupting your connection.
- ⚠️ Monitor the temperature of your device, as operating the modem at high speeds can cause heating.
If an update is interrupted due to signal loss, the system will resume the download from where it stopped, but in some cases, you may need to restart the process. Therefore, it's best to be in an area with a strong signal before initiating an update via mobile data.
Recovery mode and DFU for update errors
In rare cases, the update process may fail: the phone may freeze on the Apple logo, an image of a cable and laptop may appear, or the device may enter a constant reboot loop. In such situations, a regular update is impossible, and special diagnostic modes must be used. Recovery mode (Recovery Mode) or DFU (Device Firmware Update). These methods allow you to forcefully rewrite the software, ignoring the current system state.
Different iPhone models use different button combinations to enter recovery mode. On the iPhone 8 and later (including the 2nd generation SE and later), quickly press and release the volume up button, then quickly press and release the volume down button, then press and hold the side button until the screen turns off, continuing to hold it until the connect to computer logo appears. On the iPhone 7 and 7 Plus, press and hold the volume down button, and on older models, press and hold the Home.
After connecting the device in this mode, the computer will recognize it as requiring restoration. A window will appear in iTunes or Finder asking you to "Restore" or "Update." Select Refreshto try reinstalling iOS without losing data. If that doesn't help, you'll have to choose Restore, which will completely reset your device and wipe your data, so having a backup is critical.
| iPhone model | Button 1 | Button 2 | Action |
|---|---|---|---|
| iPhone 8, X, 11, 12, 13, 14, 15, SE (2/3) | Volume + (press/release) | Volume - (press/release) | Press and hold the side button until you see the PC logo |
| iPhone 7 / 7 Plus | Volume - (hold) | Side button (press and hold) | Hold both until the PC logo appears. |
| iPhone 6s, SE (1), and older | Home (hold) | Side/Top button (press and hold) | Hold both until the PC logo appears. |
DFU mode is more advanced and allows you to update even the device's bootloader, but it requires precise timing of key presses. Errors when entering DFU mode often result in the phone simply rebooting into normal mode. Use this method only if recovery mode fails.
Solutions to common problems and errors
Even when following all instructions, users may encounter error codes such as 4013, 9, 4005, or 14. These codes often indicate hardware, cable, or driver issues. For example, error 4013 is often associated with a faulty cable or USB port, while error 9 may indicate issues with the device's memory or a communication interruption during the critical recording phase.
If iTunes or Finder returns an error, first try replacing the USB cable with a known-good one and connecting it to a different port, preferably located directly on the computer's motherboard (at the back of the system unit), bypassing USB hubs and the front panel of the case. You should also temporarily disable any antivirus software and firewall software, as they may be blocking the connection between your computer and Apple servers.
If your computer doesn't see the device at all, check the Device Manager (on Windows). If the list includes an unknown device with an exclamation mark or an Apple Mobile Device with an error, try reinstalling the drivers. To do this, select Manual Driver Update in Device Manager and specify the path to the iTunes driver folder, which is usually located at C:\Program Files\Common Files\Apple\Mobile Device Support\Drivers.
⚠️ Note: Program interfaces and error codes may change with the release of new versions of iOS and iTunes. If the methods described above don't work, check the official Apple support database for the latest error codes.
Sometimes the problem lies in the hosts file on your computer, which can block the connection to Apple's activation servers. Check for any lines containing the domain apple.com, and delete them if necessary. Also, clear out any temporary iTunes files that may have accumulated and caused version conflicts.
Frequently Asked Questions (FAQ)
Is it possible to update an iPhone via USB modem from an Android smartphone?
Yes, this is possible. You can connect your Android smartphone to your computer via USB and enable USB tethering. The computer will use the phone's internet connection to connect to Apple servers and download the update to the iPhone connected via a different cable. The main thing is that the network bandwidth is sufficient for the entire firmware file.
Will my data be erased if I update via iTunes without Wi-Fi?
No, the standard update procedure (the "Update" button) preserves all data, settings, and apps. Data is only deleted if you select the "Restore iPhone" option or if the device encounters a critical error requiring a full reflash.
Why is the Update button in iTunes grayed out?
This may mean there are currently no updates available for your model on Apple's servers, or your version of iTunes is outdated and doesn't support checking for new iOS versions. Also, check that your device model is correctly identified in the app.
How long does it take to update an iPhone via cable?
The time depends on your computer's internet speed and iPhone model. On average, the process takes 15 to 40 minutes. The steps include file download (5-20 minutes), preparation (2-5 minutes), and the update itself on your device (5-10 minutes).
What should I do if the update is stuck at the "1 minute left" stage?
Don't panic and don't unplug the cable right away. This stage can sometimes take up to 15-20 minutes due to file indexing or background processes. If after 30 minutes nothing changes, try a forced reboot of the device.