Many users are familiar with the situation where it's critical to install a new operating system version, but the wireless network is unavailable or unstable. This can happen while traveling, in an area with poor coverage, or due to technical issues with your home router. Fortunately, Apple has provided alternative update installation paths that don't depend on the state of your local Wi-Fi network.
The main and most reliable method in such cases remains the use of a personal computer or laptop. Wired connection Using a USB cable ensures stable data transfer and protects the process from accidental interruptions, which often occur when downloading large update packages over the air. All you need is a device, a cable, and the content management software installed.
It is important to understand that before starting any manipulations with the system software, you must ensure that the battery has sufficient charge. An update process interrupted by a low battery can result in a software crash and require a complex restore via DFU mode.Connect your device to a power source beforehand to eliminate any risk of data loss or device lockup.
Preparing the device and work area
Before you begin the active phase of the update, you should do some careful preparation. Make sure you have the latest version of the manager installed on your computer. For Windows users, this is iTunes, and for Mac owners with macOS Catalina and newer, built-in FinderOutdated versions of software may simply not recognize the new update or may return an error when trying to download it.
Free up sufficient space on your computer's hard drive. Temporary firmware files can take up significant space, especially if you plan to update a device with a significant difference in iOS versions. Also, check the integrity of the USB cable: it should be original or certified. MFi, since cheap analogues are often unable to provide the required data transfer speed.
⚠️ Important: If you're using a corporate or public computer, make sure there are no restrictions on installing drivers or connecting external devices. In some offices, USB ports may be blocked due to security policies.
It's a good idea to back up your data now, while your device is still functioning normally. Even if you don't plan to reset your device, having a backup is your insurance against any unforeseen circumstances. In today's digital world, losing photos and contacts can be a serious problem, so neglecting this step is absolutely essential.
☑️ Preparing for the update
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 iTunesAfter connecting the device to the computer via cable, launch the app and wait for your smartphone icon to appear in the upper left corner or sidebar. If the device doesn't appear, try reconnecting the cable or restarting the computer.
In the main device management menu, find the "Summary" section. This is where the "Check for Updates" button is located. Clicking it will contact Apple's servers to determine if a new version of iOS is available for your model. If an update is found, the system will offer two options: "Download and Update" or "Restore."
Choose an option Download and Updateto save all data and settings. The program will automatically download the required firmware package to your computer and then transfer it to your iPhone. During the update process, the phone's screen will turn off and the Apple logo with a progress indicator will appear. Do not disconnect the cable until the process is complete.
What to do if iTunes doesn't detect your iPhone?
If the program doesn't respond to the connection, try replacing the USB cable with the original one. You may also need to update the Apple Mobile Device Support drivers through the Windows Control Panel or reinstall iTunes from the official website.
Sometimes the process may get stuck during the update verification or download process. If this happens, don't panic and don't immediately unplug the cable. Try restarting iTunes while holding down the Shift key (on Windows) or Option key (on Mac) while clicking the update button, and manually select the previously downloaded firmware file if you have one.
Using Finder on Modern Macs
Starting with macOS Catalina, mobile device management functionality has been integrated directly into the file manager. FinderThis simplified the process for Mac users, eliminating the need to install a separate, cumbersome app. The procedure is very similar to iTunes, but the interface looks more modern and native to the system.
Connect your iPhone to your Mac using a cable. Your device should appear in the Finder sidebar under "Locations." When you first connect, you may be asked to trust this computer on your iPhone's screen. Enter the passcode and click "Trust" to allow data exchange.
In the window that opens, find the "General" tab. Here you'll see the current iOS version and a "Check for Updates" button. The logic remains the same: the system downloads the data package to your computer and installs it on your phone. The advantage of this method is that Finder It often works more reliably and handles connection errors faster than older versions of iTunes.
| Characteristic | iTunes (Windows / Old macOS) | Finder (New macOS) |
|---|---|---|
| Connection type | Software installation required | Built into the system |
| Speed of work | Depends on the version | High |
| Interface | Classic, complex | Minimalistic |
| Backup | Local or iCloud | Local or iCloud |
If you're using a MacBook, make sure it's plugged in. The update process can take anywhere from 15 minutes to an hour, and it's important to avoid the laptop running out of power mid-up. You should also close other resource-intensive applications to avoid overloading the system while the data is being updated.
Critical Error Recovery Mode
If a standard update fails to launch or the device gets stuck on the logo, you may need to put your iPhone into Recovery Mode. This method also doesn't require Wi-Fi and allows you to completely reinstall the system or update it without going through the standard checks. This is a last resort, but it often saves your device from becoming bricked.
To enter this mode, you need to perform a specific sequence of button presses, which depends on your device model. On iPhone 8 and later, as well as iPads with Face ID, you need to quickly press and release the volume up button, then the volume down button, then press and hold the side button until the screen turns off, and continue holding it until the cable and computer image appears.
On your computer, a message will appear in iTunes or Finder indicating that a device in recovery mode has been detected. You will be given two options: "Restore" or "Update." Select "Refresh"to attempt to reinstall iOS without losing data. The app will download the latest firmware and install it. If that doesn't work, you'll have to select "Restore," which will completely erase all data.
⚠️ Note: Exiting recovery mode may take more than 15 minutes. If your device exits recovery mode prematurely (the screen lights up), repeat the recovery mode entry process again.
Using recovery mode is a powerful tool, but it requires caution. Make sure the cable is securely connected and the computer doesn't go into sleep mode during the process. Interrupting the writing of system files in this mode almost certainly will require repeating the process or calling for service.
Common problems and solutions
Even when following all instructions, users may encounter various errors. Error codes like 4013, 9, or 4005 often indicate hardware or connection issues. The most common causes are a faulty USB cable, a damaged port on the computer, or a software driver conflict in the operating system.
If the update gets stuck at the "Verifying Update" or "Fetching Software" stage, try temporarily disabling your antivirus and firewall. They may be blocking iTunes' connection to Apple servers. Restarting both your smartphone and computer before trying again also helps.
- 🔄 Connection error: Check if your firewall is blocking ports required for iTunes to work.
- 💾 Lack of space: Make sure that your computer's system drive has at least 10-15 GB of free space.
- 🔌 Problem with port: Try connecting the cable to a different USB port, preferably directly to the motherboard (at the back of the PC), bypassing the hubs.
In some cases, the problem lies in the computer's hosts file, which can redirect requests to Apple servers. Editing this file can be difficult for regular users, so it's easier to temporarily disable third-party ad blockers or DNS changers, if installed.
Recovering data after an update
After the update has successfully completed and the device has rebooted, it's important to verify the integrity of your data. Typically, all apps, photos, and settings will remain intact. However, if you used recovery mode with a full wipe, you'll need to restore your data from a backup.
When you first start up after the reset, follow the on-screen instructions until you select a data transfer method. Select "Restore from a Mac or PC backup." Connect your device to the computer you used to back up your device and select the appropriate backup from the list. The process may take a considerable amount of time, especially if you have a lot of media files.
Make sure all banking apps and two-factor authentication are working properly after the update. Sometimes, after major iOS updates, you'll be required to re-sign in to your accounts or re-enable Face ID/Touch ID for security reasons.
Is it possible to update an iPhone using an internet hotspot from the phone?
Technically, this is possible by connecting your iPhone to another smartphone's hotspot, but this is highly discouraged. Updates are several gigabytes in size, which will quickly deplete your mobile data. Furthermore, an incoming call or network change may interrupt the connection, leading to an update error. Use only a stable Wi-Fi or wired connection to your PC.
How long does it take to update via cable?
The time depends on your computer's internet speed and iPhone model. On average, preparation and downloading take 10-20 minutes, and the installation itself takes another 10-15 minutes. On older models, the process can take up to 40-50 minutes. Don't interrupt the process, even if it seems stuck.
Will my photos and contacts disappear when I update via iTunes?
When you select the standard "Update" procedure, all data is preserved. Data is only deleted if you select the "Restore" option or if a critical error occurs during the process, requiring a complete reflash. This is why having a recent backup is essential.