How to Retrieve .NBU Files After System Malfunctions

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 .NBU file recovery guide for Windows, MacOS, Android and IOS in 2024.

How to Retrieve .NBU Files After System Malfunctions
Data Recovery Tool

What is a .NBU file?

Backup file created by Nokia Suite (formerly Nokia Ovi Suite) or Nokia PC Suite; contains a backup of cell phone data and may include contacts, calendars, text messages, and other user data; used for restoring data to the same phone or transferring data to another phone.

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

There can be several common causes of ".NBU" (Nokia Backup) files lost or failure:

  1. Accidental deletion: Users may accidentally delete the ".NBU" files while managing their data on their device or computer.
  2. Device malfunction: If the device experiences a hardware or software malfunction, it may lead to the loss or corruption of ".NBU" files.
  3. System or software crash: If the operating system or backup software crashes during the backup process, it can result in incomplete or corrupted ".NBU" files.
  4. Virus or malware attack: A virus or malware infection can corrupt or delete ".NBU" files, making them inaccessible.
  5. File system errors: Errors in the file system, such as disk errors or file corruption, can lead to the loss or failure of ".NBU" files.
  6. Improper file transfer: If the ".NBU" files are not properly transferred from the device to the computer or vice versa, they may get lost or become unreadable.
  7. Formatting or factory reset: Formatting the device or performing a factory reset without proper backup can erase all data, including ".NBU" files.
  8. Storage media failure: If the storage media where the ".NBU" files are stored (such as SD card or computer hard drive) fails or gets damaged, it can result in the loss of ".NBU" files.

It is important to regularly back up ".NBU" files to avoid data loss and utilize data recovery methods if necessary.

How to recover lost ".NBU" 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 ".NBU" 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 ".NBU" file is always to create it once more.

Use programs for recovering ".NBU" 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 ".NBU" 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 ".NBU" 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 ".NBU" extension?

Looking for how to open a stereo nokia Phone Backup File image file file?

Programs that open ".NBU" files

Windows
Nokia Suite Nokia Suite
Nokia PC Suite Nokia PC Suite
Nokisoft Noki Nokisoft Noki
NbuExplorer NbuExplorer
Jumping Bytes Mobile Master Jumping Bytes Mobile Master

Additional Information

  • File type: Nokia Phone Backup File

  • File extension: .NBU

  • Developer: Nokia

  • Category: Backup Files

  • Format: Binary

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We will be happy to answer your questions!

Comments (2)

  • Hetman Software: Data Recovery
    Hetman Software: Data Recovery 18.12.2019 11:48 #
    Leave a comment if you have any questions about Recovering lost .NBU files after deleting, cleaning or formatting!
    Reply
  • Marco
    Marco 10.01.2022 12:50 #
    Are you sure your software recovery deleted Nokia backup files?
    Reply
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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 the process of repairing a .NBU file format?

    To repair a .NBU file format, you can follow these steps:

    1. Install and open Nokia PC Suite on your computer. This software is designed for managing Nokia phones and can help repair .NBU files.
    2. Connect your Nokia phone to the computer using a USB cable.
    3. Launch Nokia PC Suite and wait for it to detect your connected phone.
    4. Once your phone is detected, go to the "Backup" or "Restore" section of the software. The exact location may vary depending on the version of Nokia PC Suite you are using.
    5. Look for the option to restore a backup file. Select this option and browse for the .NBU file that you want to repair.
    6. Once you have selected the .NBU file, click on the "Restore" or "Repair" button to initiate the repair process.
    7. The software will start repairing the .NBU file, which may take some time depending on the size and complexity of the backup.
    8. Once the repair process is complete, you will be notified of the status. If the repair was successful, you should now have a functional .NBU file that can be used for restoring your Nokia phone's data.

    Note: It is important to note that the success of repairing a .NBU file depends on the extent of the damage or corruption. In some cases, if the file is severely damaged, it may not be possible to repair it completely.

  • What are the common reasons for a .NBU file to require repair?

    There are several common reasons for a .NBU (Nokia Backup) file to require repair:

    1. File Corruption: If the .NBU file gets corrupted due to various reasons such as improper backup process, interrupted transfer, or storage device issues, it may require repair.
    2. Incomplete Backup: If the backup process is not completed successfully, it can result in an incomplete .NBU file, which may need repair to recover the data.
    3. Software or Hardware Issues: Sometimes, software or hardware issues on the device or computer can cause errors in the backup process, leading to a damaged .NBU file.
    4. Outdated Software: If you are using an outdated or incompatible software version to open or restore the .NBU file, it may result in errors and require repair.
    5. Virus or Malware Attack: If the .NBU file gets infected by a virus or malware, it can become corrupted and need repair to recover the data.
    6. Storage Device Problems: If the storage device where the .NBU file is stored (such as an SD card or hard drive) has bad sectors or other issues, it can cause the file to become damaged and require repair.
    7. User Errors: Accidental deletion, improper handling, or modification of the .NBU file can also lead to corruption and the need for repair.

    In any case, using a reliable backup software, ensuring a proper backup process, and regularly verifying the integrity of the backup files can help prevent the need for repair.

  • Are there any specific software tools or techniques available for .NBU repair?

    Yes, there are several software tools and techniques available for .NBU repair. Here are a few options:

    1. Nokia PC Suite: This software suite allows you to manage and repair your Nokia device, including .NBU file repair. It provides a range of tools and features for data backup, restore, and repair.
    2. Noki: Noki is a third-party software tool specifically designed for .NBU file repair. It can extract data from .NBU files and convert them into various formats, such as CSV, VCF, or HTML. This tool is useful if you want to extract specific data from the backup file.
    3. NBU Explorer: NBU Explorer is another third-party tool that allows you to view and extract data from .NBU files. It provides a user-friendly interface to navigate through the backup file and extract contacts, messages, calendar entries, and more.
    4. Manual Extraction: If you prefer a manual approach, you can rename the .NBU file to .ZIP and extract its contents using a file archiver tool like WinRAR or 7-Zip. This method allows you to access individual files within the backup and recover them manually.

    It's important to note that .NBU files are specific to Nokia devices, so these tools and techniques are primarily aimed at Nokia users. Additionally, always ensure you have a backup of your .NBU file before attempting any repairs or modifications to avoid data loss.
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