EFI Flashing: Can’t Read Flash Chip - Need Help


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1 year 5 months ago #9213 by JayMac87
Hello Everyone.
I am trying to Flash The EFI Chip in my late 2012 MacBook Pro 13”. EMC - 2554. Model Number - A1278.

I Am Using A Raspberry 3 Model B, 10cm Female To Female GPIO

wires, SOIC8 Clip and I have followed Ghostlyhaks instructions on flashing the EFI.

I used to following comment:
Sudo Flashrom -r /efi/read1.bin -V -p linux_spi:dev=/dev/spidev0.0

I have gotten the response back that says: Found Generic Flash Chip “unknown SPI Chip (RDID)” (0 kB, SPI) === this flash part has status NOT WORKING for operations: PROBE READ ERASE WRITE. The test status of this check may have been updated in the latest development version of Flashrom. If you are running the latest development version, please email the report to if any of the above operations work correctly for you with this flash chip. Please include the flashrom log file for all operations you tested ( see the main page for details ), and mention which mainboard what program are you tested in the subject line. Thanks for your help. READ IS NOT WORKING ON THIS CHIP. ABORTING.
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11 months 2 weeks ago #10088 by mild7nrg
I've flashed over a hundred macs with my pi and lately I have encountered the same issue. Did you get this resolved by chance?

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9 months 1 week ago #10415 by VIPER_GE
Sudo Flashrom -r /efi/read1.bin -c ''MX25L6405" -V -p linux_spi:dev=/dev/spidev0.0

VIPER_GE

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