Force Frimware

Tried to flash SH-D163B with kreon frimware using sfdnwin -nocheck CMD fail
Any ideas
Thanx in Advance

A little bit more information is needed.
When did the flash fail? Is the drive still recognized by the OS? Does it eject? Is the LED blinking or lit solid?

Can’t do much without knowing these things.

BTW Welcome to CDFreaks!