Tips to open DFU file

Can't open the DFU file? You are not the only one. Thousands of users face similar problems every day. Below you will find tips on how to open DFU files as well as a list of programs that support DFU files.

DFU file extension

File Name IOS DFU Format
File Developer Apple
File Category System Files

The DFU file is supported on 2 operating systems. Depending on your operating system, you may need different software to handle the DFU files. Below is a summary of the number of programs that support and open the DFU file on each system platform.

Operating systems
  • 0
  • 1
  • 0
  • 0
  • 1
  • 0

What is DFU file?

The file in the DFU format belongs to the System Files category. The author of this format is Apple. System Files consists of 323 similar files. IOS DFU Format is supported by 2 operating systems. The file will work on iOS, Mac OS systems, unfortunately not on others. The Apple iOS application is recommended to open the file. It was released by Apple, Inc.. Alternatively, you can use 1 other programs. You can use PwnageTool in case Apple iOS cannot be used.

How to open DFU file?

The most common problem when using IOS DFU Format is that a specific DFU is not associated with the program. This causes the file DFU to open by system applications not designed for this purpose, or to display a message that there is no associated program. How to solve such a problem?

The first thing you should do is just "doubleclick" on the DFU file icon you want to open. If the operating system has an appropriate application to support it and there is also an association between the file and the program, the file should be opened.

Step 1. Install Apple iOS

The first step is to check if the computer has the Apple iOS program installed. This can be achieved by typing Apple iOS into the operating system search engine. If we do not have this program, it is worth installing it, as it will help you automatically associate the file DFU with Apple iOS. Later in this article you will find a list of programs that can open DFU files.

Programs to open DFU file

Remember to download programs supporting DFU files only from verified and safe sources. We suggest using the websites of software developers.

Step 2. Create association of Apple iOS with DFU files

If the application is or has been freshly installed, but the DFU file still does not use the Apple iOS program, it means no association. The association can be created using the drop-down list available by right-clicking on the file and selecting Properties. Information about the file and the program that the file is associated with are available here. Changes can be made using the "Change" button. The program should be visible in the window, otherwise it should be selected manually using the "Browse" button and the program installation directory should be indicated. The "always use the selected program ..." field will set the Apple iOS application as the default for handling the DFU file.

Step 3. Update Apple iOS to the latest version

The fault may also lie with the Apple iOS program, it is possible that IOS DFU Format requires a newer version of the program. This can be done using the application (if it provides such options) or from the Apple, Inc. website and install the latest version.

Step 4. Check for the following problems with the DFU file

The problem may also be with the file itself if the above steps don't work. The most common file problems are:

The affected file may be 0 KB or smaller than expected. This is most often caused by a problem while downloading the DFU file. The file should be downloaded again, making sure that the process has finished correctly.
The operating system may be infected with a computer virus. A quick virus scan using an up-to-date antivirus program should clear up any doubts. Alternatively, you can use the scanners available online. The scan should cover the entire computer, not only the DFU file that we want to open. However, remember that not every infected DFU file can be recovered, so it is important to take care of regular backups.
A typical compatibility error - the program does not support the older version of the DFU file. On their websites, developers usually offer free solutions to such problems, e.g. in the form of a conversion program or an older version of the program.
There can be many reasons for this. Repairing is very dependent on the file type. Some programs offer the ability to automatically repair DFU file corruption. The easiest way is to restore the file from a backup, if there is one, or contact Apple
The program indicates that the file is encrypted or corrupted. The encrypted file DFU except for the special designation, works normally, but only on the device where it was encrypted, before transferring it to another machine, decryption is required.
Some of the system directories are excluded from modification. The problem is only writing to the file, not reading it. If possible, you can try to move the DFU file to another location.
This can happen on a file that does not support multiple access. You may find that another program you are using is preventing you from working with the file. Just close unnecessary programs. Sometimes it is necessary to wait a while before referencing the DFU file again. However, some background programs may block the DFU file while scanning. If this does not work either, restart the device.