If you follow this guide, you will successfully download, boot, and flash your GPU. If you ignore the warnings, you will own a very expensive paperweight.

Disclaimer: Modifying your graphics card's BIOS voids your warranty. The author and website are not responsible for any damage caused by improper use of NVFlash. This article is for educational purposes only.

Yes, FreeDOS supports UEFI booting if you selected the correct option in Rufus. However, some modern GPUs (RTX 30 series+) have UEFI-only GOP drivers that conflict with DOS. If you get a garbled screen, you must enable CSM (Compatibility Support Module) in your motherboard BIOS.

Do not touch the PC for 10-15 seconds. You will see: PLEASE DO NOT INTERRUPT THIS PROCESS. ...... Flash completed successfully.

While newer versions of NVFlash exist for Windows, the 5.136 DOS-based version remains the gold standard for low-level, unrecoverable brick fixes. This article will explain why version 5.136 is special, where to find it, how to create a bootable DOS drive, and the exact commands to un-brick your GPU.

nvflash --save backup.rom

: Always verify that the BIOS file matches your specific card model and vendor. Write Protect