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HP 250 G7 : Can I flash microcode only?
#31
Yes! I am on it.
find
quote
#32
It seems OK now! Please see attached.


Attached Files
.zip   PchSetup.zip (Size: 11.46 KB / Downloads: 4)
find
quote
#33
Good!
Now try again:
fptw64 -a 0x2B9800 -l 0x19400 -f 806EA.bin
Make a screenshot of result.
find
quote
#34
Just to be sure:
By doing so, there is no risk to brick the BIOS?
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quote
#35
If the file 806EA.bin is still unmoded then no risk.
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quote
#36
OK!!    
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quote
#37
OK. Write-protection is disabled now.
Download latest microcode for your CPU - https://github.com/platomav/CPUMicrocode...ACEE16.bin
Rename it to 806EA_new.bin and run:
fptw64 -a 0x2B9800 -l 0x19800 -f 806EA_new.bin
Make a screenshot of result.
find
quote
#38
OK!
No risk to brick?
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quote
#39
In this case, there is a risk only if the BIOS is protected against any modification.
But this is the only way to replace microcode without full BIOS flashing.
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quote
#40
I think it is? It was encrypted and RSA signed when I use stock flash.

I can easily recover the BIOS?


Recomended: dump the BIOS region first, update the microcodes (how?) then flash back the updated BIOS region with FPT...
find
quote


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