On Fri, 15 Mar 2013 15:56:28 +0200 George Ciobanu mrg2k8@gmail.com wrote:
I've tried to read the contents of the memory in the subject, but it failed. I'm using a Panasonic CF-53 Toughbook and I have attached the verbose output.
0x5C: 0x057f0003 FREG2: Warning: Management Engine region (0x00003000-0x0057ffff) is locked.
Hello George,
thanks for your report!
The problem is the locked ME region as quoted above. We are working on unlocking it or working around it, but intel does not provide us any documentation so please do not expect a solution soon (or ever).
Do you think that I will be able to read the memory using serprog and an Arduino, unsoldering it from the motherboard or will flashrom just give the same error?
The problem is the configuration of the mainboard chipset. Outside of the board flashrom will definitely be able to read and write the chip (there is a minor problem of misdetecting the MX25L6405 because Macronix used the same ID for different chips, but there is a patch for that http://patchwork.coreboot.org/patch/3851/ and a quick hack that you could apply locally is just a simple number change).
You might be able to access the flash chip while it is still soldered, so that you do not need to desolder it (completely), see http://flashrom.org/ISP
If you need to read the BIOS region only, there is a complete software-based solution too.
Hello,
It's me again. I had some free time so I decided to disassemble the notebook and to wire it directly to the arduino, using Simon Inns' schematic. I didn't desolder the chip.
I've hit a roadblock, though. I get this message: *Probing for Macronix MX25L6405(D), 8192 kB: RDID byte 0 parity violation. probe_spi_rdid_generic: id1 0xff, id2 0xffff* * * I tried patching flashrom with http://patchwork.coreboot.org/patch/3851/, still with no luck. I am sure the flash model is correct, because I can read it on the capsule.
I've attached the logs, with and without the -c option.
In the hope that a solution will arise, I thank you again.
George Ciobanu
On Fri, Mar 15, 2013 at 4:15 PM, Stefan Tauner < stefan.tauner@student.tuwien.ac.at> wrote:
On Fri, 15 Mar 2013 15:56:28 +0200 George Ciobanu mrg2k8@gmail.com wrote:
I've tried to read the contents of the memory in the subject, but it failed. I'm using a Panasonic CF-53 Toughbook and I have attached the verbose output.
0x5C: 0x057f0003 FREG2: Warning: Management Engine region
(0x00003000-0x0057ffff) is locked.
Hello George,
thanks for your report!
The problem is the locked ME region as quoted above. We are working on unlocking it or working around it, but intel does not provide us any documentation so please do not expect a solution soon (or ever).
Do you think that I will be able to read the memory using serprog and an Arduino, unsoldering it from the motherboard or will flashrom just give
the
same error?
The problem is the configuration of the mainboard chipset. Outside of the board flashrom will definitely be able to read and write the chip (there is a minor problem of misdetecting the MX25L6405 because Macronix used the same ID for different chips, but there is a patch for that http://patchwork.coreboot.org/patch/3851/ and a quick hack that you could apply locally is just a simple number change).
You might be able to access the flash chip while it is still soldered, so that you do not need to desolder it (completely), see http://flashrom.org/ISP
If you need to read the BIOS region only, there is a complete software-based solution too. -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner
-
George Ciobanu -
Stefan Tauner