On Thu, 11 Jun 2015 22:09:55 +0200 jackjean <[email protected]> wrote:
> > > Good evening all, > > After heaving sweated for months, I finally call for help at the > community... > > My target is to program several SPI chips in order to repare some ASUS > laptops, which was solved before by purchasing pre-programmed BIOS Chips > > > I first tried to access with an SOIC "gripper" clip, directly on the > chip being soldered on the main board. > > Facing to a lot of failures (unknown chip), I decided than to work on > de-soldered chips. > > This allowed me to extract some dumps on failing and fresh purchased > SPIs. > > Now, I have a satisfying database of complete images of BIOS, that I > expect to use for programming new chips according each need. > > At that point begin my problem : > > After a abort during the first trial, I decided to erase my chip, and > got the following advise : > > _"C:\Flashrom>flashrom -E -p buspirate_spi:dev=/COM3,spispeed=1M_ > _flashrom v0.9.6.1-r1704 on Windows 6.1 (x86)_ > _flashrom is free software, get the source code at > http://www.flashrom.org [1]_ > > _Calibrating delay loop... OK._ > _Found Winbond flash chip "W25Q32.V" (4096 kB, SPI) on buspirate_spi._ > _Erasing and writing flash chip... FAILED at 0x00000800! Expected=0xff, > Found=0x00, failed byte count from 0x00000000-0x00000fff: 0x600_ > _ERASE FAILED!_ > _Reading current flash chip contents..."_ > > Than I decided to purchase a DIP to SOIC adaptor in order to eliminate > my doubts on the connection by gripper. Now the chips I use are soldered > ... > > I tried to write again the BIOS image and got the following after a very > long time of writing operation (more than one hour) and using the > following command : > > _"flashrom -w flash.bin -VVV -p buspirate_spi:dev=/COM3,spispeed=1M"_ > > The reslult is : > > _"Your flash chip is in an unknown state._ > _Please report this on IRC at chat.freenode.net (channel #flashrom) or_ > _mail [email protected], thanks!_ > _buspirate_sendrecv: write 1, read 0 Sending 0x00_ > _buspirate_sendrecv: write 0, read 4 , receiving 0x42 0x42 0x49 0x4f_ > _buspirate_sendrecv: write 0, read 1 , receiving 0x31_ > _Raw bitbang mode version 1_ > _buspirate_sendrecv: write 1, read 0 Sending 0x0f_ > _Bus Pirate shutdown completed."_ > > Considering than I took every possible care on the connection between > Buspirate and SPI, and having a satisfying reading result (dumps are > checked with Hex Editor and look OK), I am stucked at that point... > > I would appreciate any support from you. > Hi, you should have come here earlier probably :) Regarding your initial problems there are some hints at http://flashrom.org/ISP The failed erases and probably also the cause of the unknown state at the end comes from unconnected an !WP and/or !HOLD pin. See http://flashrom.org/Bus_Pirate for more details on these connections. If that does not help please post the write.log file generated by: flashrom -w flash.bin -p buspirate_spi:dev=/COM3,spispeed=1M -o write.log -- Kind regards/Mit freundlichen Grüßen, Stefan Tauner _______________________________________________ flashrom mailing list [email protected] http://www.flashrom.org/mailman/listinfo/flashrom
