-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
On 12/29/18 4:47 PM, Jeremy Jackson wrote: > > On 2018-12-29 10:39 a.m., Kumonie Williams wrote: Hi Kumonie, Jeremy, adding Paul and Lynxis to CC as they were initial contributors of change s. > > ... > > Though, I do have a question I was hoping you'd be able to answer: > The Dell OptiPlex 7010 has a service mode jumper, and, from my > understanding, two ROM chips for two firmware images, the primary > one used when the service mode jumper is not set, and the secondary > one used when the service mode jumper has been set, with an > immutable firmware image. My question is, given I only have one PC > at the moment, my OptiPlex 7010, if I, say, flash a coreboot image > that won't boot, would it be possible for me to simply set the > service mode jumper from that point to safely use the second ROM > chip? If so, it would make testing much easier. > > FYI, I have a 7010 that I bricked doing a Dell firmware update. > The jumper didn't help me recover (yet?). I have one other that > updated successfully. I'm not sure about what jumper you talking. There are 2 close to BIOS chips RTCRST and PSWD - neither would help directly in recover form bric k. I took a picture of 2 chips [1][2]. First seems to be SPI which contain BIOS and second I would say is storage for Dell bloatware that can run various hardware tests and display useless messages [3]. I will insepct SOIC8 later today, but SOIC16 requires special clip which I don't have at this point. @Paul,Lynxis, if you flashed anything on those devices please let me know if there is any special treatment. Apparently [1] seems to be MX25L3206E [4] - which is well supported by flashrom. Second seems to MX25L6406E [5] - I wonder how much of that we will need - it would be great to have additional 8MB of space. I hope to take a look at it today night - will let you know about the progress. [1] https://www.instagram.com/p/Br-p_2klRVL/?utm_source=ig_web_button_share_ sheet [2] https://www.instagram.com/p/Br-pt8jFX5Y/?utm_source=ig_web_button_share_ sheet [3] https://twitter.com/pietrushnic/status/1071384206603939843 [4] https://www.netcheif.com/Reviews/PLA5405/PDF/MX25L3206E.pdf [5] http://www.macronix.com/Lists/Datasheet/Attachments/7370/MX25L6406E,%203 V,%2064Mb,%20v1.9.pdf Best Regards, - -- Piotr Król Embedded Systems Consultant https://3mdeb.com | @3mdeb_com -----BEGIN PGP SIGNATURE----- iQIzBAEBCAAdFiEE4DCbLYWmfoRjKeNLsu5x6WeqnkwFAlwnsAkACgkQsu5x6Weq nkzcjhAAjqojKNISVasyIGSDqTLN8rCaWudrSz6+XdoN5u0ZmnbfFj72/rDn1wgu Tm1wJvmb6QYSi8gbsyIEmhRFH15DJwicWE02bSbY6uzKJzOas4LvxUV7n5XD1zJs LOjPhdJur97TOmw2iLsF3993bjQQoYqg/8iaT9aenb5bDJkocuGAwVVmrXihabos TVPBDv1lMw4jSO6/ZQyAl8JZXGIktjGiPE3X4fFJHiar8uykjBcAzgr6K6TYP+fp s0RjDnmpxet2WpJowbUiE+UEeletHy/HWSRbtTXhSWEiMFBeBcMCGsklHRqr3mSr SqiklexiaKAXHz4EMtWJ56FR66o4rOCQUOBcPGiqJi3dOvm/4bTagXA1yCrgSprl ojGcu4AdHm8NeXgz7JVh8HrR3VkM31L9iD5/xYmdD0KD1d0S73OkAw08hskYUMph LxwP9o5ITHG2gKc8OtC4o5dI5irdBmdF7gHxKjvl+KMr0LBx/4dQAJl+iFl5v/u3 SNl88WvjwQHDygLlkbBEGUNIaXexVeL6FgML1tqRIxN1GcETL3P5xPxSzbTi71RY bkYP+vD2R7nG/UuW5AKaJdM41Gc4m22xHHyFz9bjVdQXolBQE0eAQYBdaFjj57iq ljzk4HIHjirpBfaATZBFUid20eT3AMwL/SalMsi7mqJucrTIZlI= =ruqN -----END PGP SIGNATURE----- _______________________________________________ coreboot mailing list -- [email protected] To unsubscribe send an email to [email protected]
