Sorry for late reply. Yes, it looks like your connection is bad. Try using the shorter wires, and hopefully of a good quality ( e.g. pure copper wires could be 1.5 longer than the cheap aluminium wires and still have the same conductivity given the same internal thickness )
You have mentioned that you have updated the Bus Pirate firmware. To what version did you upgrade? I always recommend upgrading to the latest Bus Pirate community firmware (the old official one is dead) You could obtain it here - https://github.com/BusPirate/Bus_Pirate Alternatively, you may try a $3 very cheap CH341A USB programmer, which is also supported by flashrom project and has a much simpler hardware, i.e. it does not have the internal firmware, just a tiny EEPROM of 20 or 32 bytes size + 8 bit CFG register. The board of CH341A usb programmer is small and extremely simple, and the simplicity could be a key to success Best regards, Ivan 2018-03-17 14:31 GMT+03:00 <a...@airmail.cc>: > > I apologise if I should write to flashrom mailing list instead and not you > directly. > > It was night when I wrote that message and I was tired. Bit more of what I > was doing. > > I was trying to do external flashing following instructions from coreboot > wiki. > I used command "sudo flashrom -p buspirate_spi:dev=/dev/ttyUSB0 -r > filename", and I got: > Calibrating delay loop... OK. > Found Generic flash chip "unknown SPI chip (RDID)" (0 kB, SPI) on > buspirate_spi. > === > This flash part has status NOT WORKING for operations: PROBE READ ERASE > WRITE > The test status of this chip may have been updated in the latest development > version of flashrom. If you are running the latest development version, > please email a report to flashrom@flashrom.org if any of the above > operations > work correctly for you with this flash part. Please include the flashrom > output with the additional -V option for all operations you tested (-V, -Vr, > -VE, -Vw), and mention which mainboard or programmer you tested. > Please mention your board in the subject line. Thanks for your help! > Read is not working on this chip. Aborting. > > Was that because it had bad connection or am I doing something really > stupid? > Then I used "flashrom -L" and it showed that T420 support was marked as > "BAD". > I bought Bus Pirate v3b and Pomona 5250 SOIC test clip. Have updated the Bus > Pirate firmware. > > Aadu > _______________________________________________ flashrom mailing list flashrom@flashrom.org https://mail.coreboot.org/mailman/listinfo/flashrom
