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10-21-2019, 07:00 AM
Hello everyone, since a day now I'm trying to create an unlocked bios of the MSI PS42-8M, a VERY similar model to the MSI PS42-8RB (the 8RB variant has a graphics card)
I've also looked through a thread of someone who seems to have achieved this on the MSI PS42-8RB: (Thread with the MSI PS42-8RB)
The steps I did so far:
- I've downloaded the latest version of the bios from the MSi website. (My computer is already on the latest BIOS)
-Using AMIBCP 5.02.0023 (compatible Aptio V) I have switched some things to be accessible by the user.
-Saved the modified BIOS image
Knowing that my computer have a "Bios Lock", I followed this guide on how to disable it (The very helpful guide)
And I guess it was succeful since on the second boot on grub the offset 0x929 the var was set to 0x0.
-Using Intel CSME System Tools v11 r27, I tried to dump the installed bios with the command "FPTW64.exe -D dump.bin".
I've ended up with this error:
"Error 318: The host CPU does not have read access to the target flash area. To enable read access for this operation you must modify the descriptor settings to give host access to this region.
FPT Operation Failed."
Why did I try to dump the bios ? Simply because I wanted to compare the dumped version and the original version (out of curiosity and the fear to brick my device).
However this error scares me a bit. Does this mean I shouldn't try to flash the modded bios I've made ?
And if I flash my modded bios, should I rather use FPTW64 or through the bios itself ?
I have attached the original bios file, just in case someone wants it.
Any helpful answer would be greatly appreciated.
I've also looked through a thread of someone who seems to have achieved this on the MSI PS42-8RB: (Thread with the MSI PS42-8RB)
The steps I did so far:
- I've downloaded the latest version of the bios from the MSi website. (My computer is already on the latest BIOS)
-Using AMIBCP 5.02.0023 (compatible Aptio V) I have switched some things to be accessible by the user.
-Saved the modified BIOS image
Knowing that my computer have a "Bios Lock", I followed this guide on how to disable it (The very helpful guide)
And I guess it was succeful since on the second boot on grub the offset 0x929 the var was set to 0x0.
-Using Intel CSME System Tools v11 r27, I tried to dump the installed bios with the command "FPTW64.exe -D dump.bin".
I've ended up with this error:
"Error 318: The host CPU does not have read access to the target flash area. To enable read access for this operation you must modify the descriptor settings to give host access to this region.
FPT Operation Failed."
Why did I try to dump the bios ? Simply because I wanted to compare the dumped version and the original version (out of curiosity and the fear to brick my device).
However this error scares me a bit. Does this mean I shouldn't try to flash the modded bios I've made ?
And if I flash my modded bios, should I rather use FPTW64 or through the bios itself ?
I have attached the original bios file, just in case someone wants it.
Any helpful answer would be greatly appreciated.
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