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Video Repair

Perfectly repair videos with various corruption issues in minutes.

  • Fix video issues like video no sound, video black screen, video blurry, etc.
  • Repair videos of 15+ different video formats, such as FLV, MP4, MOV, MKV, etc.
  • Advanced Repair mode for severely corrupted videos.
  • Enhance and upscale videos to perfect with advanced AI algorithms.
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What is a FLV Format and How to Repair it?

“I have some FLV files that seem to have become corrupted or broken, and I'm struggling to play them. Does anyone have any suggestions for fixing this issue or recovering the data from these FLV files? Any help would be greatly appreciated!”

It can be frustrating when FLV files become corrupted or broken, especially if you need to access important video content. Fortunately, several potential solutions exist for fixing this issue or recovering the data from these FLV files.

Here, we will introduce what is a FLV file and we will guide you on resolving issues with FLV files. If you're experiencing problems with your FLV files, this article is perfect! We'll do our best to enlighten you on what is a FLV format and assist you in recovering your video content.

Part 1. What is a FLV File?

flv introduction theme

Named after Flash Video, an FLV file employs Adobe Flash Player or Adobe Air to deliver video or audio content online. It's often seen in online videos on websites like YouTube, Vimeo, Hulu, and numerous others. Additionally, with Adobe's cessation of Flash support, streaming services and software developers have shifted away from Flash in favor of HTML5 and alternative formats.

Now that we've introduced what is a FLV file, let's explore some common reasons why they might become corrupted or broken.

Part 2. Common Reasons that FLV File Get Corrupted

FLV files often get corrupted, but knowing why this happens is key to fixing and preventing it. By understanding the usual causes of FLV file corruption, we can better handle and avoid these issues in the future.

  • Incomplete Downloads: If an FLV file is not downloaded fully or properly, it can corrupt the file, making it unplayable.
  • File Conversion Errors: Converting FLV files to other formats can lead to corruption during the conversion.
  • Storage Issues: Storing FLV files on unreliable or damaged storage devices, such as a failing hard drive, can cause them to corrupt over time.
  • Software or Hardware Issues: Issues with media players, codecs, or hardware components like the graphics card can sometimes interfere with the proper playback of FLV files.

Part 3. 4 Methods to Fix FLV File

This section will cover four ways to fix corrupted FLV files using tools like Repairit Video Repair, VLC, System File Checker, and updating graphic drivers. We'll guide you through each method to get your FLV files working again. Let's begin and examine these solutions closely.

#1 Use Repairit Video Repair to Fix FLV File

  • Repair damaged videos with all levels of corruption, such as video not playing, video no sound, out-of-sync video or audio, playback errors, header corruption, flickering video, missing video codec, etc.

  • Repair full HD, 4K, and 8K videos and support 18 popular formats, including FLV, MOV, MP4, M2TS, INSV, M4V, WMV, MPEG, ASF, etc.

  • Repair damaged or corrupted videos caused by video compression, system crash, video format change, etc.

  • Repair critically damaged or corrupted videos available on SD cards, mobile phones, cameras, USB flash drives, etc.

  • Repairit has a quick and advanced scanning mode. You can use either depending on the level of corruption the video file has undergone.

  • No limit to the number and size of the repairable videos.

  • Support Windows 11/10/8/7/Vista, Windows Server 2003/2008/2012/2016/2019/2022, and macOS 10.10~macOS 13.

Repairit Video Repair is a helpful tool for fixing broken videos and other files. Its Video Repair feature can undo the damage from recording, transferring, editing, or converting videos, making them work again. It can handle 18 video formats, including FLV, and uses smart tech to fix files without losing quality.

Here’s how to fix damaged FLV files with Repairit Video Repair:

Step 1. Download Wondershare Repairit. Press the +Add button within the Video Repair section.

repairit add damaged flv

Step 2. After adding your corrupted FLV files, please select the Repair button to start the video repair process.

repairit repair flv file

Step 3. Click "Preview" to check the fixed FLV file. If it looks good, click "Save" and pick a new spot to keep it, not where it originally got damaged.

repairit save flv file

Repair Corrupted FLV Video with Repairir Video Repair Now

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#2 Fix FLV File via VLC Media Player

VLC has a feature for repairing corrupted video files but is limited to the AVI format. That's why we've demonstrated its use in the example above. After converting your FLV file to AVI using VLC or another program, follow these steps:

Step 1: Open VLC and go to Tools and Preferences.

vlc preferences

Step 2: Select Input/Codecs and "Always fix" in the "Damaged or incomplete AVI file" drop-down menu. Then, click Save.

vlc input or codecs

Try playing your newly converted video in VLC to check if it works. You can try the alternative fix below if it still doesn't play.

Related Articles to VLC

#3 Run the System File Checker to Repair FLV File

The System File Checker (SFC) is a Windows tool for diagnosing and repairing corrupted system files. It might also assist with damaged videos, especially if they are stored in corrupted locations. To use the System File Checker, follow these steps:

Step 1: Locate the Command Prompt using the search bar in your taskbar, then right-click and select "Run as administrator."

common prompt

Step 2: Enter the command sfc /scannow. This will initiate a scan of your system, verifying file integrity and replacing corrupted files with cached copies when necessary.

sfc or scanner

#4 Repair FLV File by Updating Your Graphic Driver

When troubleshooting file corruption, outdated graphics drivers are often to blame. Updating them could fix the issue and restore playability to your FLV files. Here's how:

Step 1: Open Device Manager, locate your graphics driver, right-click it, and choose "Update driver."

update driver

Step 2: Opt for the first option: "Search automatically for drivers."

search automatically for drivers

Repeat these steps if you have multiple graphics drivers. Once your computer updates them, try playing your FLV file again to check if it works.

Part 4. Tips to Prevent FLV File from Corruption

Before we end this, let us give you some tips on preventing FLV files from corruption in the future. Let's take a look:

  1. Regular Backups: Make it a habit to back up your FLV files regularly to ensure you have copies in case of corruption or loss.
  2. Use Reliable Storage: To minimize the risk of corruption, store your FLV files on reliable and stable storage devices. Avoid using damaged or faulty storage media.
  3. Avoid Interruptions During File Transfer: Ensure that file transfers are not interrupted. This includes ensuring stable internet connections and avoiding sudden power outages.
  4. Update Software Regularly: Keep your media players, codecs, and other software used for handling FLV files up to date. Software updates often include bug fixes and improvements that can help prevent file corruption.
  5. Monitor System Health: Regularly check the health of your computer's hardware components. For example, your hard drive and graphics card detect potential issues that could lead to file corruption.


FLV files are widely used for online video streaming but can become corrupted, causing playback issues. However, you can effectively repair corrupted FLV files with the right tools and knowledge, such as Repairit Video Repair. What's more, consider the prevention mentioned, as this can help you avoid such issues in FLV in the future.

  • Can you get back the FLV files that you deleted forever?

  • Yes, you can recover deleted FLV files, even those you thought were gone forever. This is possible with the aid of special software, as long as your device hasn't filled up the space it used to occupy. Tools like Recoverit Data Recovery is designed to help you locate and retrieve these deleted FLV files.

  • Can antivirus mess up FLV files?

  • It's rare, but antivirus software might corrupt FLV files if it thinks they're dangerous and tries to delete them. To avoid this, make sure your antivirus knows not to corrupt FLV files.

  • What if my FLV files keep getting messed up?

  • If you find that your FLV files are consistently getting corrupted, it's possible that there's an underlying issue with your device, hardware, or software. To address this, consider performing regular device checks, updating your software, and running virus scans. Additionally, using reliable media players and storage can significantly reduce the likelihood of this issue recurring.