I remembered DediProg Software have "Firmware AutoUpdate" in Help Menu.have you tried it ?
Thanks! 
FredXwang
 
> Date: Thu, 2 May 2013 15:57:39 +0200
> From: stefan.tauner@student.tuwien.ac.at
> To: flashrom@flashrom.org
> CC: coreboot@coreboot.org
> Subject: [coreboot] Looking for dediprog users...
>
> hi,
>
> if you are using an sf100 with a firmware version between 2.1.1 and
> 5.1.2 (non-inclusive), I would like to know from you if flashrom
> version r1649 or newer works for you or not. Probing for a chip (even
> if there is none attached) suffices as a test. Apparently earlier
> versions do not support setting the spi clock rate, but we always do
> that (since r1649) and fail programmer initialization on those versions.
> I try to find out which versions support setting the speed.
>
> BTW did anybody try to contact dediprog and request any information
> that would help flashrom to support their programmers better?
>
> I would also like to know if any dediprog sf300 or sf600 users are
> reading this and would like to see support for it in flashrom.
> --
> Kind regards/Mit freundlichen Grüßen, Stefan Tauner
>
> --
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