Zitat von Moral Hazard im Beitrag #135

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I tried flashing the complete file unchanged, yes. ....

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Thanks for the file, I'll try flashing now and report back.

Also based on post 89 (quote below), the EC chip w25q80dvsig on this motherboard is 8 pins and supported by flashrom so I should be able to grab that dump also.

Looks like post 89 has the EC chip dump attached for comparison which is nice.

Zitat von pepebmx im Beitrag #89

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Found w25q80dvsig 1646
Read them with 1.31 and asp
Will reflash the second bios you send to me, and try to turn on.

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I thought I should upload the contents my w25q80dvsig chip (suggested to be the EC), so that is attached.

I have tested bios provided above, still not starting up. Turns on and then beeps (3 beeps - 2 beeps - 1 beep). No light codes flash on the power button so unsure what the error is.

Just for fun I also tried flashing the bios + EC firmware uploaded by user pepebmx earlier in this thread, after that there are no signs of life at all from my machine. Obviously not a close enough match.

Im sorry, but didn't expect the bios to work. Anyway, the beep codes mean that there's at least "someone home", machine isn't completely dead.

But since it wasn't you who flashed the bios it's unclear what happened- since you wrote 'after a bios flash' it might even have been a programmer flash with a wrong firmware? Can you identify the service tag or serial of the machine to compare them to the values in the dump?

1MB chip doesn't contain firmware, whatever it is- looks more like configuration data.

Edit Would you please make a new dump of the bios?

EC firmware in bios padding from bricked dump was from very first bios 1.02, the bios structure is identical to the bios I attached.

I'll have to take a new dump in a week or so, my SOP8 clip stopped working so I have ordered a new one.

The service tag is 6YNDNC2

Interesting that you say the 1MB chip didn't contain firmware, maybe that was my problem?

Others in this thread suggest w25q80dvsig (UT2) should probably be firmware.

Zitat von Lost_N_BIOS im Beitrag #64

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W25Q128FV (UH4) is the BIOS chip, UT2 would be EC/KBC FW probably, and the other two near graphics are probably it's vBIOS
So you were correct, all chips that hold FW on here are Winbond

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Well, that's guessing... Even Lost_N_BIOS wrote "probably". Did check the dumps you mentioned- have a look into the yourself with HxD, doesn't look like firmware to me and most EC firmware is inside the controller, not in a separate spi. And since EC/Multi-IO is the first thing to do something whe power button is pressed there's an EC firmware since the machine starts and beeps. Either it's bios related or a different reason. The beep sequence is sometimes linked to video problems/ dead screen/cable. That would fit togehther that the first padding in the bios region seems to be kinda log which is filled with errors regarding not finding LCD info/eeprom:

Thanks for the amazing amount of info, I'll start with returning that 1mb chip to the original contents and get your provided bios loaded.

At the same time I'll order a replacement screen & cable assembly to rule that out (as there is a good price for one on eBay right now).

With shipping delays, it may take a while for my next testing to happen but I'm feeling confident about it after your explanation.

Worst case, I will be on the lookout for a good deal on a 15 r3 or 17 r4 motherboard.

Thanks again!

Thanks for the feedback. Just to clarify, I didn't say that is has to be video output, the error might now be in several other places but cable and lcd! This error log just says that at some time the machine was trying to read the LCD eeprom and that wasn't possible.... There are other errors, several times 'harddrive not connected', which could come from power-ups during a repair process, too!

Therefor I was interested in getting a new dump to see if this 'log' was filled up again. Is the board a LA-D751P, LA-D752P or a LA-D753P (or a fourth type?)

The board is LA-D751P.

The screen assembly was quite cheap on eBay so was worth just getting to cross that off the list, but I see your point about checking a fresh dump to verify if the errors are still logged.

Sadly I won't be able to do that until the new SOP8 clip arrives, hope it's soonish.

And yes, several times I tried to start the machine without the SSD during testing.

I think it's really cool that there is an error log in the bios, something new to me. Can you share the name of the tool you use to view the log?

Sorry this took such a long time to update, turns out a replacement screen has helped!

Now with the new screen, the machine turns on to what looks like a bios recovery screen. I'll try the USB method first and otherwise I can try my new sop8 clip.