UEFI flash-device image, typical for Insyde H2O firmware on Acer, HP and Lenovo laptops.

What is a .fd file?

Like .rom files, an .fd from an update package may contain only part of the flash. Compare its size with the chip before programming it directly.

How to open a .fd file

  • Insyde H2OFFT
  • UEFITool
  • CH341A (full images only)

Recommended software

Related formats