File Extension Library

.FFU File Extension

  • Developer by: Microsoft
  • Category: Misc Files

What are .FFU files and how to open them?

Can't open .FFU file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .FFU file.

What is a .FFU file extension?

.FFU file extension is created by Microsoft. .FFU has been classified as Misc Files.

.FFU is Full Flash Update Image File

Full Flash Update (FFU) image format used by Microsoft to apply a Windows image and partition information to a drive or SD card; contains one or more update packages.

FFU images are primarily used to flash updates to Windows Phones. In order for it to be deployed to a phone, the image must be cryptographically signed for security purposes. Images shipped to retail phones for flashing are signed by Microsoft.

Since FFU images are large in size, you may need to use a separate network location or storage drive instead of a USB flash drive. You can also split the image into smaller files.

ImageApp, which is available with Windows, can be used to add new or updated packages to an existing FFU image file. However, the program cannot be used to remove packages from an image.

NOTE: The Windows Phone Recovery Tool is designed to work with Lumia phones and HTC One running Windows Phone 8 and later.

List of all softwares that can open the Full Flash Update Image File
Windows Phone Software Recovery Tool

How to fix problems with .FFU files

  1. You need to update the application that you normally use to open .FFU files. Only the latest version of the software supports the current .FFU file format
  2. You need to check the .FFU file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)