Hi,
I have an "HP EliteBook 840 G6" and would like to know how to dump the BIOS flash chip without desoldering. Putting 3.3V on VCC of the BIOS chip with a programmer does not work (seems to enable the PCH). I have read some general notes about connecting the CPU reset to ground or to bypass oscillators. There does not seem to be a reset line for Intel i5-8365U. Just RSMRST, but it's only accessible on the other side of the mainboard. Is there an easy way to dump the flash without desoldering and without removing the mainboard? Does anyone have experience with this? Maybe use only 2.7V on the BIOS chip?
Someone already posted the CAD file for BoardViewer
https://www.badcaps.net/filedata/fetch?id=2105356
See also:
https://www.badcaps.net/forum/troubl...59#post1735659
Thanks
I have an "HP EliteBook 840 G6" and would like to know how to dump the BIOS flash chip without desoldering. Putting 3.3V on VCC of the BIOS chip with a programmer does not work (seems to enable the PCH). I have read some general notes about connecting the CPU reset to ground or to bypass oscillators. There does not seem to be a reset line for Intel i5-8365U. Just RSMRST, but it's only accessible on the other side of the mainboard. Is there an easy way to dump the flash without desoldering and without removing the mainboard? Does anyone have experience with this? Maybe use only 2.7V on the BIOS chip?
Someone already posted the CAD file for BoardViewer
https://www.badcaps.net/filedata/fetch?id=2105356
See also:
https://www.badcaps.net/forum/troubl...59#post1735659
Thanks