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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