Stefan Tauner writes:
thanks for you report. The flash chip is marked as untested... have you verified visually that the actual chip on the board is either a MX25U6435E or MX25U6435F,
Yes, they (2, since it's 'Dual BIOS') are marked
MXIC MX 25U6435F M2I-10G 8A615600 L140295
More notes about the board at
http://lackof.org/taggart/hacking/coreboot/GA-J1900N-D3V-1.x/README
and if the read data seems legit?
How would I test for that? The checksum of the image read does not match the blob in the vendor update package of the same version (but I suspect 'Dual BIOS' has something to do with that). Can I binary diff them somehow or would something like compression interfere with that? Are there tools for picking apart the image to make comparison easier?
Also I'm a little concerned about something I read somewhere about Gigabyte's "Dual Bios" feature and possibly needing to give flashrom additional info in order to deal with that (but I can't find where I read it now).
How should I process with testing? I haven't setup a way to external flash yet, maybe the first step getting a good external read that I'd be able to write back if things went wrong?
Thanks,