are you doing the ISP (in system programming) - using a SOIC8 test clip? if yes, try shortening the cables between a test clip and programmer, and improve your connection in general
On Sun, Oct 25, 2020 at 9:21 PM Steffen Müller <mailstef...@gmail.com> wrote: > > After successfully reading from W25Q128FV, I wanted to write data > back. But I get the error "ERASE FAILED!". Is there something I can do > to make writing successful? > > The chip is located on the mainboard of an HP Elitebook notebook. The > pins CS, DO, GND, VCC, CLK and DI are connected to a Raspberry Pi. > > > pi@raspberrypi:~ $ flashrom -c "W25Q128.V" -w > /home/pi/Desktop/bios.bin -VVV -p > linux_spi:dev=/dev/spidev0.0,spispeed=16000 > flashrom on Linux 5.4.51+ (armv6l) > flashrom is free software, get the source code at https://flashrom.org > > flashrom was built with libpci 3.5.2, GCC 8.2.0, little endian > Command line (7 args): flashrom -c W25Q128.V -w > /home/pi/Desktop/bios.bin -VVV -p > linux_spi:dev=/dev/spidev0.0,spispeed=16000 > Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns). > Initializing linux_spi programmer > Using device /dev/spidev0.0 > Using 16000 kHz clock > The following protocols are supported: SPI. > Probing for Winbond W25Q128.V, 16384 kB: programmer_map_flash_region: > mapping W25Q128.V from 0xff000000 to 0x00000000 > RDID returned 0xef 0x40 0x18. probe_spi_rdid_generic: id1 0xef, id2 0x4018 > Found Winbond flash chip "W25Q128.V" (16384 kB, SPI) on linux_spi. > Chip status register is 0xfc. > programmer_unmap_flash_region: unmapped 0x00000000 > This chip may contain one-time programmable memory. flashrom cannot read > and may never be able to write it, hence it may not be able to completely > clone the contents of this chip (see man page for details). > programmer_map_flash_region: mapping W25Q128.V from 0xff000000 to 0x00000000 > Some block protection in effect, disabling... Block protection could > not be disabled! > Chip status register is 0xfc. > Reading old flash chip contents... done. > Erasing and writing flash chip... Trying erase function 0... > 0x000000-0x000fff:EFAILED at 0x00000000! Expected=0xff, Found=0x00, > failed byte count from 0x00000000-0x00000fff: 0xffc > ERASE FAILED! > Reading current flash chip contents... done. Looking for another erase > function. > Trying erase function 1... 0x000000-0x007fff:EFAILED at 0x00000000! > Expected=0xff, Found=0x00, failed byte count from > 0x00000000-0x00007fff: 0x8000 > ERASE FAILED! > Reading current flash chip contents... done. Looking for another erase > function. > Trying erase function 2... 0x000000-0x00ffff:EFAILED at 0x00000000! > Expected=0xff, Found=0x00, failed byte count from > 0x00000000-0x0000ffff: 0x10000 > ERASE FAILED! > Reading current flash chip contents... done. Looking for another erase > function. > Trying erase function 3... 0x000000-0xffffff:EFAILED at 0x00000000! > Expected=0xff, Found=0x00, failed byte count from > 0x00000000-0x00ffffff: 0xffffd5 > ERASE FAILED! > Reading current flash chip contents... done. Looking for another erase > function. > Trying erase function 4... 0x000000-0xffffff:EFAILED at 0x00000000! > Expected=0xff, Found=0x00, failed byte count from > 0x00000000-0x00ffffff: 0xfffd3e > ERASE FAILED! > Reading current flash chip contents... done. Looking for another erase > function. > Trying erase function 5... not defined. No usable erase functions left. > FAILED! > Uh oh. Erase/write failed. Checking if anything has changed. > Reading current flash chip contents... done. > Apparently at least some data has changed. > Your flash chip is in an unknown state. > Please report this on IRC at chat.freenode.net (channel #flashrom) or > mail flashrom@flashrom.org, thanks! > programmer_unmap_flash_region: unmapped 0x00000000 > _______________________________________________ > flashrom mailing list -- flashrom@flashrom.org > To unsubscribe send an email to flashrom-le...@flashrom.org _______________________________________________ flashrom mailing list -- flashrom@flashrom.org To unsubscribe send an email to flashrom-le...@flashrom.org
