Hi all,
as subject line says, I have a laptop that reboots after 30 minutes. Investigation leads me to believe that is due to intel ME as it happens everytime after 30 minute from boot, it just turns off, no overheating, nothing weird.
I found a lot of information about cleaning ME like this https://winraid.level1techs.com/t/gu...lization/31277 and this https://github.com/corna/me_cleaner
Anyway, first step is to dump the bios. I found the Winbond W25Q64FV chip on the motherboard, dumped it with flashrom over SPI bus from a raspberrypi by removing the laptop battery and hooking up the SPI with a soic8 clip probe.
Flashrom identifies the chip correctly, so I know the communication is ok. I can read the chip content, multiple times and it's the same file content. (procedure like explained here https://github.com/corna/me_cleaner/...ernal-flashing)
However, I tried to verify the extracted BIOS image with ifdtool (from coreboot) and this reports it's not a valid image.
I tried with MEAnalyzer from here https://github.com/platomav/MEAnalyzer and that too reports it's not a valid image.
I am rather at a loss and do not really want to go ahead and flash another BIOS file when apparently I can not extract a vaild image (who says I can write another one then...)
I guess my next step is to desolder the chip and try to extract off-board.
And order a new chip to try and program with new bios, so I can always resolder the original chip with original BIOS
Note that the laptop boots and works fine, just after 30 minutes it shuts down.
Any advice, hints welcome !
Thanks
PS: if someone has working bios image for this laptop, I would gladly appreciate and try those.
also, I found various asus N550 bios files on the forum, I guess I will try those.
as subject line says, I have a laptop that reboots after 30 minutes. Investigation leads me to believe that is due to intel ME as it happens everytime after 30 minute from boot, it just turns off, no overheating, nothing weird.
I found a lot of information about cleaning ME like this https://winraid.level1techs.com/t/gu...lization/31277 and this https://github.com/corna/me_cleaner
Anyway, first step is to dump the bios. I found the Winbond W25Q64FV chip on the motherboard, dumped it with flashrom over SPI bus from a raspberrypi by removing the laptop battery and hooking up the SPI with a soic8 clip probe.
Flashrom identifies the chip correctly, so I know the communication is ok. I can read the chip content, multiple times and it's the same file content. (procedure like explained here https://github.com/corna/me_cleaner/...ernal-flashing)
However, I tried to verify the extracted BIOS image with ifdtool (from coreboot) and this reports it's not a valid image.
I tried with MEAnalyzer from here https://github.com/platomav/MEAnalyzer and that too reports it's not a valid image.
I am rather at a loss and do not really want to go ahead and flash another BIOS file when apparently I can not extract a vaild image (who says I can write another one then...)
I guess my next step is to desolder the chip and try to extract off-board.
And order a new chip to try and program with new bios, so I can always resolder the original chip with original BIOS
Note that the laptop boots and works fine, just after 30 minutes it shuts down.
Any advice, hints welcome !
Thanks
PS: if someone has working bios image for this laptop, I would gladly appreciate and try those.
also, I found various asus N550 bios files on the forum, I guess I will try those.
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