How to Restore and Repair .DFU Files from Virus Damage

Have files been deleted due to a user’s error or software error? Have you formatted a disk by accident and need to know how to recover the files? Read our .DFU file recovery guide for Windows, MacOS, Android and IOS in 2024.

How to Restore and Repair .DFU Files from Virus Damage
Data Recovery Tool

What is a .DFU file?

Firmware file used by iPhone and iPod devices; stores low-level system data that is used to run the device; contained within an .IPSW update file and is among other files in the IPSW archive; may stand for "Device Firmware Update" file.

What Are Common Causes of ".DFU" Files Lost or Failure?

There can be several common causes for ".DFU" file loss or failure:

  1. Accidental deletion: Users may accidentally delete the ".DFU" file while trying to clean up their computer or storage device.
  2. File system corruption: If the file system on the storage device gets corrupted, it can result in the loss of ".DFU" files.
  3. Virus or malware infection: Viruses or malware can infect and corrupt files on a computer, including ".DFU" files.
  4. Hardware failure: A hardware failure, such as a hard drive crash or a faulty storage device, can lead to the loss of ".DFU" files.
  5. Software issues: Issues with the software used to access or manage ".DFU" files can cause them to become lost or inaccessible.
  6. Improper file transfer: If the ".DFU" file is not transferred correctly or if there are interruptions during the transfer process, it may result in file loss or corruption.
  7. Operating system errors: Errors or glitches in the operating system can cause ".DFU" files to become lost or inaccessible.
  8. Power outages: Sudden power outages or system shutdowns during the creation or modification of ".DFU" files can lead to file loss or corruption.
  9. Overwriting or formatting: Accidentally overwriting or formatting the storage device containing ".DFU" files can result in their loss.
  10. Human error: Mistakes made by the user, such as accidental deletion, incorrect file manipulation, or improper handling of storage devices, can lead to ".DFU" file loss or failure.

How to recover lost ".DFU" files?

Sometimes while working with a computer, laptop or other stationary or mobile devices, you may encounter various bugs, freezes, hardware or software failures, even in spite of regular updates and junk cleaning. As a result, an important ".DFU" file may be deleted.

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🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

🧺 How to Recover Files and Folders After Sending Them to the Recycle Bin and Deleting? (Windows 11)

By no means should you think that the only way to recover a ".DFU" file is always to create it once more.

Use programs for recovering ".DFU" files if a file was lost after accidental or deliberate deleting, formatting the memory card or the internal storage, cleaning the storage device, after a virus attack or a system failure.

Programs to recover ".DFU" files

Looking for a way to get files back? In cases when files were deleted and they cannot be restored by using standard operating system tools, use Hetman Partition Recovery.

Partition Recovery™ 4.9
The tool recovers data from any devices, regardless of the cause of data loss.
Download

Follow the directions below:

  1. Download Hetman Partition Recovery, install and start the program.

  2. The program will automatically scan the computer and display all hard disks and removable drives connected to it, as well as physical and local disks.

    File Recovery Software

  3. Double-click on the disk from which you need to recover ".DFU" files, and select analysis type.

    Hetman Partition Recovery - Analysis Type

  4. When the scanning is over, you will be shown the files for recovery.

    Hetman Partition Recovery - Files that Can be Restored

  5. To find a file you need, use the program’s interface to open the folder it was deleted from, or go to the folder "Content-Aware Analysis" and select the required file type.

    Hetman Partition Recovery - Deep Scan

  6. Select the files you have been looking for and click "Recovery".

    File Recovery Software - Files List for Recovery

  7. Choose one of the methods for saving the files and recover them.

    Saving recovered files in Hetman Partition Recovery

How to open file with ".DFU" extension?

Looking for how to open a stereo iOS DFU File image file file?

Programs that open ".DFU" files

iOS
Apple iOS Apple iOS

Additional Information

  • File type: iOS DFU File

  • File extension: .DFU

  • Developer: Apple

  • Category: System Files

  • Format: Binary

  • File types that use the extension .DFU:

    • iOS DFU File

    • LaTeX Font Encoding File

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Comments (1)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 16:30 #
    Leave a comment if you have any questions about Recovering lost .DFU files after deleting, cleaning or formatting!
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Vladimir Artiukh

Author: Vladimir Artiukh, Technical Writer

Vladimir Artiukh is a technical writer for Hetman Software, as well as the voice and face of their English-speaking YouTube channel, Hetman Software: Data Recovery for Windows. He handles tutorials, how-tos, and detailed reviews on how the company’s tools work with all kinds of data storage devices.

Oleg Afonin

Editor: Oleg Afonin, Technical Writer

Oleg Afonin is an expert in mobile forensics, data recovery and computer systems. He often attends large data security conferences, and writes several blogs for such resources as xaker.ru, Elcomsoft and Habr. In addition to his online activities, Oleg’s articles are also published in professional magazines. Also, Oleg Afonin is the co-author of a well-known book, Mobile Forensics - Advanced Investigative Strategies.

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Questions and answers

  • What is a ".DFU backup" and how does it differ from other types of backups?

    A ".DFU backup" refers to a Device Firmware Upgrade backup. It is a type of backup that captures the firmware of a device, which includes the software code responsible for controlling the device's hardware. DFU backups are commonly associated with Apple devices, such as iPhones and iPads.

    Unlike other types of backups, such as iCloud or iTunes backups, which primarily focus on user data like apps, settings, and media files, DFU backups specifically target the device's firmware. This means that a DFU backup captures a snapshot of the device's operating system, bootloaders, and other low-level software components.

    DFU backups are typically used in situations where a device encounters issues related to its firmware, such as failed software updates, system crashes, or even jailbreaking attempts. By creating a DFU backup, users can restore their device to a known working firmware state, which can help resolve these firmware-related problems.

    However, it's important to note that DFU backups do not include user data like photos, messages, or app data. Therefore, if you want to back up both firmware and user data, it is recommended to create separate backups, such as an iCloud or iTunes backup for user data and a DFU backup for firmware.

  • How can I create a ".DFU backup" of my device and what are the steps involved?

    To create a ".DFU backup" of your device, you can follow these steps:

    1. Connect your device to your computer using a USB cable.
    2. Ensure that you have the necessary software installed on your computer to create DFU backups. Typically, this software is provided by the manufacturer of your device.
    3. Open the software and navigate to the backup or firmware update section.
    4. Look for an option to create a DFU backup or firmware backup. The exact wording may vary depending on the software you are using.
    5. Click on the backup option and follow any on-screen instructions to initiate the backup process.
    6. The software will start creating a DFU backup of your device. This process may take some time depending on the size of the backup.
    7. Once the backup is complete, the software will usually prompt you to save the backup file to a specific location on your computer. Choose a location and save the backup file.
    8. After saving the backup file, you can disconnect your device from the computer.

    Note: It's important to remember that the steps may vary depending on the specific device and software you are using. It's recommended to refer to the user manual or documentation provided by the manufacturer for detailed instructions on creating a DFU backup for your specific device.

  • Can a ".DFU backup" be used to restore data and settings to a different device?

    No, a ".DFU backup" file cannot be used to restore data and settings to a different device. DFU (Device Firmware Update) is a mode used to update or restore the firmware of a device. It is not designed for backing up or restoring user data and settings. To transfer data and settings to a different device, you would need to use a different backup method, such as iCloud, iTunes, or a third-party backup tool.
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