Hey there, I am basically trying to follow the steps found on [1] in order to change the name of my bluetooth receiver BK8000L. I was expecting this to be easier, but I thought I might learn something here.
I have desoldered the flash chip which is a FT25H04, see [2] for a datasheet. I was able to dump the flash content to a file called BK8000L_backup.flash. I have then searched and modified the string "BK8000L" to "myname", stored the modified flash-file in a file BK8000L_mod.flash and tried to flash it back to the chip. The output however is: # flashrom -p buspirate_spi:dev=/dev/buspirate,spispeed=1M -w BK8000L_mod.flash flashrom v1.2 on Linux 5.6.12-arch1-1 (x86_64) flashrom is free software, get the source code at https://flashrom.org Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns). Found Macronix flash chip "MX25L4005(A/C)/MX25L4006E" (512 kB, SPI) on buspirate_spi. Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done. Verifying flash... FAILED at 0x0000a000! Expected=0x81, Found=0x82, failed byte count from 0x00000000-0x0007 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! I have then tried to flash BK8000L_backup.flash but got the following: # flashrom -p buspirate_spi:dev=/dev/buspirate,spispeed=1M -w MX25L4006E_bu.eeprom flashrom v1.2 on Linux 5.6.12-arch1-1 (x86_64) flashrom is free software, get the source code at https://flashrom.org Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns). Found Macronix flash chip "MX25L4005(A/C)/MX25L4006E" (512 kB, SPI) on buspirate_spi. Reading old flash chip contents... done. Erasing and writing flash chip... Erase/write done. Verifying flash... FAILED at 0x0001a800! Expected=0xd1, Found=0xd0, failed byte count from 0x00000000-0x0007 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! I hope you can help me with this. Cheers, Klemens [1] https://kovo-blog.blogspot.com/2017/11/bk8000l-change-name.html [2] http://pro0fc108.hkpic1.websiteonline.cn/upload/XTX_FMD_NOR_FT25H04_Rev1.pdf _______________________________________________ flashrom mailing list -- flashrom@flashrom.org To unsubscribe send an email to flashrom-le...@flashrom.org
