How to update your iPhone if Wi-Fi isn't working: all the working methods

Update iOS - a critical procedure for safety and performance iPhoneBut what to do if Wi-Fi is not working, and your mobile internet is limited or nonexistent? This situation is familiar to many: your router is broken, your provider is doing maintenance, or you're in an area with poor coverage. Fortunately, There are at least 5 ways to update an iPhone without Wi-Fi. — and we will examine each of them in detail.

In this article you will find:

• 🔄 Update via mobile internet (including limitations and risks)
• 🖥️ Using iTunes/Finder on Windows or Mac (step-by-step instructions with pictures)
• 📱 Alternative methods for devices without network access (including DFU mode)
• ⚠️ What to do if the update is stuck or an error occurred

Important: Some methods require preliminary preparation (for example, downloading the firmware in advance or having a computer). If you have access to Wi-Fi for at least a few minutes, Download the firmware file (.ipsw) in advance via Settings → General → iPhone StorageThis will save time and nerves later.

1. Update iPhone via mobile Internet (3G/4G/5G)

The most obvious, but not always reliable way. Apple officially allows updating iOS via cellular network, however there is important restrictions:

• 📶 Data volumeThe firmware size ranges from 1 to 6 GB (depending on the model and version). Make sure you have sufficient data.
• 🔋 Battery charge: must be at least 50%, otherwise the iPhone will refuse to install the update.
• ⚡ Network speed: When the signal is weak (for example, E or 3G) the update may be interrupted.

How to enable updates via mobile internet:

1. Open Settings → Cellular → Data Options → Cellular Data.
2. Scroll down and turn on the switch Downloading over a cellular network (in some versions iOS this item is called Updating iOS over a cellular network).
3. Return to Settings → General → Software Update and start the download.

⚠️ Attention: If the update is interrupted during the installation phase (for example, due to a lost signal), the iPhone may stuck on the Apple logo or enter recovery mode. In this case, you'll need to connect to a computer.

2. Update via iTunes (Windows) or Finder (Mac)

If you have a computer with iTunes (For Windows) or Finder (For Mac on macOS Catalina and newer), this method will be the most reliable. It works even without an internet connection on iPhone, since the firmware is downloaded to the computer.

Step-by-step instructions:

1. Install the latest version iTunes (For Windows) or update macOS (For Mac).
2. Connect your iPhone to your computer using original cable (faulty cables can cause errors).
3. IN iTunes (or Finder) select your iPhone from the top menu.
4. Click Refresh (Not Restore!). The program will automatically find and download the latest firmware.
5. Follow the instructions on the screen. Don't turn off your iPhone until the process is complete (this may take 15-40 minutes).

If iTunes gives an error, try download the firmware manually from the website ipsw.me (select your iPhone model and version iOS). Then in iTunes clamp down Shift (For Windows) or Option (For Mac) and press Refreshto select the downloaded file.

3. Using Recovery Mode (DFU)

This method is suitable if the iPhone does not turn on, stuck on the logo Apple or does not respond to other update methods. DFU mode (Device Firmware Update) allows you to reinstall iOS from scratch, even if the system is damaged.

How to enter DFU mode:

• 🔌 Connect your iPhone to your computer and launch it iTunes/Finder.
• 🔄 Complete forced reboot:
  • For iPhone 8 and newer: quickly press and release Increase volume, then Decrease the volume, then hold Side button, until the screen goes dark.
  • For iPhone 7/7 Plus: hold Side button + Volume down 10 seconds.
  • For iPhone 6s and later: hold Home + Nutrition 10 seconds.
• 🖱️ 3 seconds after the screen turns off (but not before the logo appears) Apple!) hold Side button (or Home (For older models) another 5 seconds. If the screen remains black, you're in DFU mode.

iTunes will inform you that an iPhone in recovery mode has been detected. Click Refresh (Not Restore!) to install the latest version iOS without data loss (if the system is not damaged).

⚠️ Attention: if you choose Restore instead of Refresh, all data on the iPhone will be erasedThis step is irreversible!

What to do if iPhone won't exit DFU mode?

If your iPhone remains in DFU mode (black screen) after updating, try force restarting it. If that doesn't help, repeat the update process or contact a service center.

4. Update via another iPhone or iPad (Hotspot)

If you have a second one iPhone or iPad with working Wi-Fi, you can use it as access point (Hotspot) to update the main device. This method is suitable if:

• 📶 The second device has access to Wi-Fi or unlimited mobile Internet.
• 🔋 Both devices are sufficiently charged.
• 📱 The feature is enabled on the primary iPhone Update via cellular network (see section 1).

How to set up:

1. On the second device, open Settings → Tethering and turn it on Allow others.
2. Remember the network password (or set a simple one, for example 12345678).
3. On your primary iPhone, connect to that network in Settings → Wi-Fi.
4. Run the update via Settings → General → Software Update.

The advantage of this method is that you control the speed and stability of your connectionFor example, you can place a second iPhone near the router for a better signal.

5. Update without the Internet (offline method)

If you have there is no internet access at all, but there is a computer with previously downloaded firmware (.ipsw), you can update your iPhone offline. This method is also useful if your internet speed is extremely slow.

What you will need:

• 🖥️ Computer with iTunes or Finder.
• 📁 Firmware file (.ipsw) for your iPhone model (you can download it from ipsw.me).
• ⚡ Original USB cable.

Instructions:

1. Connect your iPhone to your computer.
2. IN iTunes (Finder) select your device.
3. Clamp Shift (Windows) or Option (Mac) and press Refresh.
4. Select the downloaded file .ipsw and wait for the process to complete.

⚠️ Attention: If you download firmware for another iPhone model (for example, for iPhone 12 instead of iPhone 12 Pro), iTunes will give an error 3004 or 3014Always check the exact model name in Settings → General → About.

6. What to do if the update is stuck or an error occurs

Even if you take the correct steps, the update process may go wrong. Let's consider the most common problems and their solutions:

If iPhone stuck on Apple or the screen has turned black, try:

1. Force restart the device (see instructions in section 3).
2. Connect to the computer and run the update via iTunes/Finder.
3. If nothing helps, use DFU mode (see section 3).

In extreme cases, if the iPhone does not respond to any actions, contact Apple Authorized Service CenterDo not attempt to disassemble the device yourself—this will void your warranty.

FAQ: Frequently asked questions about updating iPhone without Wi-Fi

Can I update my iPhone via mobile data if I have unlimited data?

Yes, but keep in mind that:

• 📡 Some operators may limit the speed after high-speed traffic is exhausted.
• 🔄 If the update is interrupted, your iPhone may become unusable (you will need to restore it via a computer).
• 📱 On some tariffs P2P connections are prohibited, which uses Apple to download the firmware.

We recommend that you contact your operator in advance to check if there are any restrictions on downloading large files.

Why can't iTunes see my iPhone?

The problem may be:

• 🔌 Faulty cable (try original or certified MFi).
• 🖥️ Outdated drivers (refresh iTunes or reinstall it).
• 🔒 Blocked by antivirus (temporarily disable protection).
• 🔄 USB port failure (try another port or computer).

If your iPhone has previously connected to this computer but is now not detected, try reset location and privacy settings V Settings → General → Reset.

Is it possible to roll back an iOS update if something goes wrong?

Officially - no.. Apple allows rollback only within short period After the new version is released (usually 1-2 weeks), and only if the previous firmware is still being signed by the servers. To check if a rollback is available:

1. See the list of signed versions at ipsw.me.
2. If your version is on the list, download it. .ipsw and restore your iPhone via iTunes (see section 2).

⚠️ ImportantRolling back erases all data on your device. If you don't have a backup, you'll lose photos, messages, and apps.

How long does it take to update an iPhone?

Time depends on:

• 📥 Internet speeds (via Wi-Fi - 10-30 minutes, via 4G - 30-60 minutes).
• 📱 iPhone models (new devices are updated faster).
• 🔋 Battery status (If the charge is less than 20%, the iPhone will update more slowly).

Average time:

• 🔄 Firmware download: 5–20 minutes.
• 🖥️ Preparing for the update: 5–10 minutes.
• ⚙️ Installation: 15–40 minutes (iPhone will restart several times).

What should I do if my battery is dead after an update?

This is normal during the first 2-3 days after the update. iOS Reindexes files, optimizes performance, and calibrates battery life. To speed up the process:

• 🔌 Connect your iPhone to a charger and leave it alone for 1–2 hours.
• 🔄 Restart your device after it is fully charged.
• ⚙️ Turn off background app refresh in Settings → General → Content Update.

If the battery discharges too quickly (more than 10% per hour) after 3 days, check battery status V Settings → Battery → Battery HealthIf the capacity is less than 80%, contact the service center.