Update:
I managed to successfully flash BIOS, first on a HP ProBook 650 G2 (chip Winbond 25Q128FVSQ) and then on a HP ProBook 650 G1 (chip Macronix MXIC MX25L12873F), using in both cases the firmwares provided by SMDFlea.
I include hereafter some notes based on my own experience:
1) Neoprogrammer seems to do the work better than CH341A Programmer and AsProgrammer. Using the latter two you have to be very cautious which version of the software you will use in order to correctly support the chip(s) you're using.
2) In both cases I did the reprogram with the chips on board. It is important to make sure that the machine is completely switched off by pressing the power-off button for 10 seconds or so before starting the programming. For the chips to be recognized, in my case at least the charger had to be unplugged.
3) I downloaded DMI Tool 2.018.zip from https://drive.google.com/file/d/16XT...bjoay8pAx/view and created a bootable USB stick as per the instructions. Then I booted from this USB and followed the instructions to restore the parameters from the backup I had taken with the HP BCU utility before starting the programming (note: all parameters had to be typed in manually) and finally commit. Attached some screenshots.
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Can someone please take a look at this bios? The board does not power on at all but voltages are present (19V/5V/3.3V/1.8V).
I already tried to put together a fresh bios with the existing ME but it did not solve the problem so I guess I must have done it wrong.
Can someone please take a look at this bios? The board does not power on at all but voltages are present (19V/5V/3.3V/1.8V).
I already tried to put together a fresh bios with the existing ME but it did not solve the problem so I guess I must have done it wrong.
---------------------------------------------------------------------------------------------------------------------------------------------------------- All donations to Badcaps are welcome. Become a Badcaps supporter >>>>>click on this link to donate <<<<< Thanks to all supporters.
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Thanks! Board is still not working, it probably has other problems. When I plug in the power adapter it idles at 0.015A and briefly jumps to 0.200A when pressing the power button but it goes down again immediately. Keeping the power button pressed heats up an IC which is likely the 3.3V LDO. Should I replace the IC or does it indicate a problem with the EC or PCH?
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