Hi, With no working power button or LEDs, I would suspect an EC issue. Have you examined what the dumps contained?
Cleaning ME doesn't help (I found that out too). I'm also going to assume that your laptop has neither Boot Guard nor HP SureStart (as I understand, Boot Guard implemented in the EC?)
On Mon., Mar. 16, 2020, 8:18 a.m. Evgenii Moz. via coreboot, < coreboot@coreboot.org> wrote:
Hello. For some time now I've been trying to port my laptop with no luck, yet. Here's what I did: • I recovered all the log's from the system, as per Motherboard_Porting_Guide https://www.coreboot.org/Motherboard_Porting_Guide and coreboot-collector https://github.com/system76/coreboot-collector. • Took apart my laptop and dumped eeproms via soldering off, it appears I have w25q80dv - 8mbit https://www.winbond.com/resource-files/w25q80dv_revf_02112015.pdf and w25q64fv
- 64mbit
https://www.winbond.com/resource-files/w25q64fv%20revq%2006142016.pdf. I made sure the dumps are valid, doublechecked via diff and purged the eeproms, system booted normally when I flashed the dumps back. • I made an amature coreboot config based on Mimoja's Razer Blade Stealth (2016) H2U https://review.coreboot.org/c/coreboot/+/34475 which is now merged. I failed in adapting *devicetree.cb* and left it as is. The laptop showed no signs of life (dead PB and no lights) after externally flashing w25q64fv - 64mbit https://www.winbond.com/resource-files/w25q64fv%20revq%2006142016.pdf with coreboot combined with original *Descriptor* and stripped down *ME* via nconfig (probably should not have done that for 1st boot). Flashed the dumps back, no bork just yet =) • I have yet to create a position on Gerrit https://review.coreboot.org. *P.S. not including the eeprom dumps, too heavy for a public mailing list. Will send on demand.*
I would be glad to receive any help, please do guide me.
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