Hi, This is just a follow up email. I was wondering what the status is of support for the EN25S64 bios chip. I have tried to flash it many times and it always fails. See my message below for more details.
I would like to help out with any testing for this chip, however if I don't hear back from you soon, I will probably be returning the laptop I have which contains the EN25S64 chip. Thanks, Kyle Stanevich On Oct 4, 2015 6:22 PM, "Kyle Stanevich" <[email protected]> wrote: > Hi, > > I am still having trouble flashing the EN25S64 chip on my Lenovo N21 > chromebook. I have connected a raspberry pi to the EN25S64 on the Lenovo > N21 motherboard chip via this clip ( > http://www.amazon.com/Qunqi-Soic8-Flash-Clips-Programmer/dp/B014IXR9RG). > On the raspberry pi (which is running raspbian) I run the command "sudo > ./flashrom -VVV -p linux_spi:dev=/dev/spidev0.0 -w ~/Downloads/bios.bin". I > have removed the write protect screw, but I don't think that matters > because I am connecting to the chip directly. > > I have tried to compile google's (chromiumos') version of flashrom, but I > could not get it to compile due to many errors. Therefore, I am using the > latest version of flashrom which compiles fine. > > It seams to me that the problem is there is something not working > correctly writing/erasing/reading to the chip. Erase functions 1 through 3 > all fail when using the command shown above. It hangs up on erase function > 2 for a very long time. I had to run it overnight until erase function 2 > failed. I have tried running the same command again, and it is currently > still stuck at "Trying erase function 2... 0x000000-0x7fffff:E". It has > been stuck at this line for 16 hours, with the raspberry pi at 100% cpu > usage the entire time. > > The line "This flash part has status UNTESTED for operations: PROBE READ > ERASE WRITE" indicates to me that this chip has not yet been tested. I > would like to help out with testing for this chip since I have one and have > the hardware required to flash it. What can I do to help out? > > Thanks, > Kyle Stanevich > > > > On Sat, Oct 3, 2015 at 3:56 PM, Stefan Tauner < > [email protected]> wrote: > >> On Sat, 3 Oct 2015 10:13:36 -0700 >> Kyle Stanevich <[email protected]> wrote: >> >> > Hi, >> > >> > I have attached all the output from my command line. Hopefully it will >> > be useful for you. >> > >> > Do you think that I will ever have a chance to flash this chip, or >> > should I go and buy another laptop? >> >> Hi, >> >> first of all you should not reboot before fixing the issue. >> If you made a backup first, you should try to write that instead. >> If that works you are at least safe... >> >> I am not familiar with the N21 but you probably have to disable a write >> protection. Also, chromebooks work best with google's (chromiumos') >> version of flashrom. >> >> -- >> Kind regards/Mit freundlichen Grüßen, Stefan Tauner >> > >
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