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NVFlash is a special program for flashing the BIOS of Nvidia video cards. It is needed to update the firmware stored in the EEPROM of the video adapter. Using the program, you can also save copies of the current BIOS to a file or display its version.

NVFlash to your GTX 950, 960, 970, 980, 980Ti
Feature Description
Developer NVIDIA
Purpose Flashing and updating the BIOS/firmware on NVIDIA GPUs
Supported Operating Systems Windows, Linux, DOS
Usage Example nvflash64.exe --index=0 -6 new_bios.rom
Important Note Always back up your original BIOS before flashing
Risk Incorrect flashing may brick your GPU if not done properly
Latest Version v5.735.0 (example version)

When to use NVFlash

Reprogramming BIOS chips of supported video cards using NVFlash may be required in the following situations:

  • The computer began to freeze, turn off, or reboot itself due to problems with the video card.
  • Various graphic “artifacts” appeared on the screen of the monitor that was connected to the faulty video card. These can be dead pixels, color stripes, and other defects.
  • The graphics adapter has completely failed.

In addition, NVFlash can be used to update the firmware of BIOS video chips to eliminate various errors in previous versions. On NVIDIA chips, the video card manufacturer most often reports that a reflashing is required.

NVFlash program functions and advantages of use

The presented tool has several features:

  • Allows you to reflash the BIOS of the video card.
  • Compatible with NVIDIA graphic adapters.
  • Free download of the program.
  • Convenient control from the command line.
  • Low-level interaction with hardware.

Please note that you need to find the appropriate BIOS version for flashing yourself.

How to download NVFlash and enter commands

To install the program, follow the step-by-step instructions:

  • Download the NVFlash application from the official source.
  • Unzip the installation file. First, you need to extract the .zip archive to the root of the system drive. Please note that the file should be located in the C:\ path.
  • Run the command line as an administrator. First, you need to click on the search icon, then specify CMD in the bottom search bar. Click on the “Run as administrator” item. Open the directory with the nvflash64.exe program. In this case, you should enter the command “cd C:\”.
  • Copy the BIOS. You need to save a copy of the current BIOS of your video card. To do this, you should enter the command “nvflash64 -b bios.rom”. The copy will be saved on the C: drive. If your program for flashing is called nvflash64, not nvflash, then this is the name you should use when writing commands.
  • Flashing a new BIOS. In the same command line, you need to remove the protection from reflashing. To do this, use the command “nvflash64 -protectoff”. After that, the message “Remove EEPROM write protect complete:” will appear. Flash the video card with a new BIOS. Its location should be on the C: drive and it should be called newbios.rom. NVFlash will show the message: Update successful.

Finally, you should reboot the computer – A reboot is required for the update to take effect.

Additional NVFlash commands

This program can be used not only for flashing BIOS video chips but also for other operations with the chip. The most important NVFlash commands include:

  • nvflash –c: helps determine whether the video card supports flashing;
  • nvflash -b <file_name>: creates a backup copy of the current video chip firmware and saves the file under the specified name;
  • nvflash <file_name>: starts the video chip firmware.

Please note that when using the NVFlash program, it is worth remembering that improper handling can cause a malfunction of the video card, including its complete failure.

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