Flashrom

flashrom is a utility for identifying, reading, writing, verifying and erasing flash chips. It's often used to flash BIOS/EFI/coreboot/firmware images.

• Supports more than 195 flash chips, 75 chipsets, 130 mainboards, and 17 devices (PCI or USB) which can be used as external programmers.
• Supports parallel, LPC, FWH and SPI flash interfaces and various chip packages (DIP32, PLCC32, DIP8, SO8/SOIC8, TSOP32, TSOP40, TSOP48, and more)
• No physical access needed, root access is sufficient.
• No bootable floppy disk, bootable CD-ROM or other media needed.
• No keyboard or monitor needed. Simply reflash remotely via SSH.
• No instant reboot needed. Reflash your chip in a running system, verify it, be happy. The new firmware will be present next time you boot.
• Crossflashing and hotflashing is possible as long as the flash chips are electrically and logically compatible (same protocol). Great for recovery.
• Scriptability. Reflash a whole pool of identical machines at the same time from the command line. It is recommended to check flashrom output and error codes.
• Speed. flashrom is often much faster than most vendor flash tools.
• Portability. Supports Linux, FreeBSD, DragonFly BSD, Solaris, Mac OS X, and other Unix-like OSes.

Emergency help

IMPORTANT: If something went wrong during flashing, do NOT turn off/reboot your computer. Instead, let us help you recover. We can be contacted via IRC (#flashrom on irc.freenode.net) or email. Please allow for a few hours until someone responds on IRC, we're all volunteers.

Supported hardware

See Supported hardware.

Download & installation

See Downloads.

FAQ / Troubleshooting

See FAQ.

Flash chip overview

See Technology.