Is it possible for you to tear down your computer and directly attach some test clip to a BIOS chip (e.g. SOIC8 test clip if your BIOS chip is SOIC8 format) ? That will bypass the write protection and no soldering is required. However, if your BIOS chip has a weird format for which no test clip exists, you would have to desolder a BIOS chip from your board and put it to some adapter connected to flasher
Best regards, Mike On Thu, Feb 22, 2018 at 10:40 PM, Björn Tantau <[email protected]> wrote: > > > Am 22. Februar 2018 17:56:31 MEZ schrieb Nico Huber <[email protected]>: >>Hello Björn, >> >>On 20.02.2018 12:57, Björn Tantau wrote: >>> I tried to flash a new BIOS to my AOpen i965GMt-LA motherboard. >>Reading >>> the ROM worked, but flashing did not. I'll gladly give you more >>> information, just tell me what you need. :-) >> >>boards of that generation often have a write-protection pin of the >>flash >>chip asserted (often only to prevent accidentally writing to the >>flash). >>There is no standard for this, so that pin could be connected to any- >>thing, e.g. a jumper on the board, a GPIO of another chip (maybe con- >>trolled by a BIOS setup option or by the vendor flash application). In >>the latter case, flashrom would need something we call a board-enable >>procedure to toggle the GPIO. >> >>Please consult your board's documentation for anything flash related. >>If you can't find something, you can try to find the board's schematics >>to figure out if there's a write-protection pin and where it is connec- >>ted to. Reverse engineering the vendor's flashing tool would also work. > > Hi Nico, > > unfortunately the only jumper on the board is used to clear the CMOS. Reverse > engineering seems to be the only option left. Unfortunately I'm not well > versed in these arcane arts. ;-) > > Thanks for your help, > Björn > > _______________________________________________ > flashrom mailing list > [email protected] > https://mail.coreboot.org/mailman/listinfo/flashrom _______________________________________________ flashrom mailing list [email protected] https://mail.coreboot.org/mailman/listinfo/flashrom
