TL;DR:
If iTunes gets stuck on "Preparing iPhone for Restore," you can quickly understand causes and fixes below.
Restoring an iPhone using iTunes is usually straightforward, but many users encounter a frustrating roadblock: the process gets stuck at "Preparing iPhone for Restore." This can leave you staring at your screen for minutes-or even hours-without any progress, causing worry and confusion. Understanding how long this step should take, why it might be delayed, and what solutions are available can save you time and frustration.
In this article, we'll explore the typical duration of the preparation process, common reasons behind delays, and practical methods to fix iTunes when it gets stuck, helping you restore your iPhone smoothly.

In most cases, the "Preparing iPhone for Restore" stage takes around 15 minutes or less. However, some users find that the process seems to take forever or becomes completely stuck. The actual time required depends on several factors, including firmware download speed, file verification, and the size of the backup being restored. Below is a breakdown of what happens during the restore process:
1. Download Firmware
If iTunes needs to download the latest iOS firmware from Apple's servers, the required time largely depends on your internet speed. With a stable connection, this step is usually completed within a few minutes.
2. Extract Firmware
Once the firmware package is downloaded, iTunes extracts its contents and prepares them for installation. This process is typically quick and only takes a few minutes.
3. Verify Firmware
Next, iTunes verifies the firmware files to ensure they are complete and authentic. In most cases, verification takes only a few seconds.
4. Restore Firmware
Finally, iTunes installs the firmware and restores your iPhone. This is usually the longest stage and can take anywhere from several minutes to over an hour, depending on the device model, backup size, and computer performance.
If the "Preparing iPhone for Restore" screen remains unchanged for more than 30 minutes to an hour, there may be an underlying issue preventing the restore process from continuing normally.
If iTunes gets stuck on "Preparing iPhone for Restore," several factors may be preventing the restore process from completing normally. Here are the most common causes:
Understanding the possible causes can help you choose the most effective solution, which we'll cover in the next section.
If iTunes gets stuck on "Preparing iPhone for Restore," you can try the following solutions to resolve the issue effectively.
A simple restart can fix many temporary system glitches that may interrupt the restore process.
To restart your iPhone

To restart your computer:

An older version of iTunes can cause issues with your iPhone. So, updating iTunes to the latest version may solve the problem "iTunes stuck on preparing iPhone for restore".
To update iTunes on Windows PC:

To update iTunes on Mac:
Many users suggest using a USB 2.0 or another port on your computer to restore or update your iPhone since they will offer the required speed for the device firmware.
If the USB cable and port are broken or stained, it will also make the device work abnormally. Since most computers have several USB ports, you can use the Apple-authorized USB cable to connect your iPhone to a different port.

If you have more USB devices to connect to the same computer, but the USB ports are limited, you may use a USB hub as a middle-man to establish the connection. However, some USB hubs may be too overheated to guarantee the transfer speed.
Thus, try not to use the USB hub to connect your iPhone to the computer. Most of the time, iTunes will normally work to restore your iPhone.

In other cases, your computer is blamed for the iTunes stuck on preparing iPhone for restore error. There may be certain issues with its components, or the system is defective. To fast fix the problem without any delay, you can connect your iPhone to another computer with iTunes installed and open iTunes to restore your iPhone with the standard procedure. (How to Fix iTunes Backup & Restore Problems?)
As mentioned above, the unstable Wi-Fi network connectivity will make it harder for iTunes to connect to the Apple servers and is one of the reasons why the preparing iPhone for restoration is taking forever. You can switch to a stable Wi-Fi network when restoring your iPhone with iTunes to save you time.
Consider disabling the third-party anti-virus software before restoring or updating your iPhone because it may mistakenly regard the connection between iTunes and Apple servers as suspicious and block iTunes amid the process. You can also remove the anti-virus app from your computer completely.
Above all, ensure that the iTunes or Finder runs the latest version on your computer. Then, boot your device into Recovery mode with these steps: (iPhone Stuck in Recovery Mode?)
iPhone 8 and above:

iPhone 7/7 Plus:
iPhone 6 and earlier:
Next, connect your iPhone to the computer as you normally do. When it displays the Restore or Update options in front of you, choose the Restore option and complete the whole process.
If none of the basic troubleshooting methods work, the issue may be caused by deeper system-level errors on your iPhone or iTunes. In such cases, you can consider using a dedicated iOS system repair tool that is designed to fix stubborn iOS and iTunes errors automatically without requiring advanced technical skills.
One of the commonly used solutions is iOS System Repair, which is designed to fix various Apple system issues such as restore failures, boot loops, update errors, and iTunes-related problems.
The highlights of iOS System Repair:
How to fix iTunes stuck on preparing the iPhone for restore?
01Install and run the software on your computer. Then, connect your iPhone to the computer via a USB cable and tap "More tools" > "iOS System Recovery" to continue.
02 The app will automatically detect your device problem. After it displays the issue on the interface, tap "Start" to proceed.
03 Confirm the device information on the interface. If needed, choose the correct information from the drop-down lists. Later, click the "Repair" button to fix the iTunes stuck on preparing iPhone for restore issue.

Suppose nothing works to resolve your problem, or your iPhone gets physical damage. In that case, you can make an appointment from the Apple Support page ahead of time and bring your iPhone and the purchase receipt to the nearest Apple Store for help.
We hope the above tips will help you fix the iTunes stuck on "Preparing iPhone for Restore" issue effectively. In most cases, this problem can be resolved by updating software, checking your connection, or trying different basic troubleshooting methods.
If the issue still persists, you may consider using a professional iOS System Repair tool, as it can help fix deeper system errors without data loss and save you a lot of time during the restore process.
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