flashrom 79308a27 on Linux 5.4.196-18902-gc3adeb405966 (aarch64)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Opened /dev/mtd0 successfully
Found Programmer flash chip "Opaque flash chip" (8192 kB, Programmer-specific) mapped at physical address 0x00000000.
Error accessing Opaque flash chip, 0x800000 bytes at 0xff800000
/dev/mem mmap failed: Operation not permitted
Could not map flash chip Opaque flash chip at 0xff800000.
Using regions: "FMAP", "GBB".
Error accessing Opaque flash chip, 0x800000 bytes at 0xff800000
/dev/mem mmap failed: Operation not permitted
Could not map flash chip Opaque flash chip at 0xff800000.
Reading flash... done.
SUCCESS
Setting GBB flags from flags: 0x00000000 to 0x19..successfully saved new image to: /tmp/tmp.uW6X8pnu21
flashrom 79308a27 on Linux 5.4.196-18902-gc3adeb405966 (aarch64)
flashrom is free software, get the source code at https://flashrom.org

Using clock_gettime for delay loops (clk_id: 1, resolution: 1ns).
Opened /dev/mtd0 successfully
Found Programmer flash chip "Opaque flash chip" (8192 kB, Programmer-specific) mapped at physical address 0x00000000.
Using region: "GBB".
Error accessing Opaque flash chip, 0x800000 bytes at 0xff800000
/dev/mem mmap failed: Operation not permitted
Could not map flash chip Opaque flash chip at 0xff800000.
Reading old flash chip contents... done.
Erasing and writing flash chip... FAILED at 0x003e1000! Expected=0xff, Found=0x24, failed byte count from 0x003e1000-0x003e1fff: 0xffd
 failed byte count from 0x003e1000-0x003e1fff: 0xffffffff
 ERASE_FAILED
FAILED!
Uh oh. Erase/write failed.
Your flash chip is in an unknown state.
Please report this to the mailing list at flashrom@flashrom.org or
on IRC (see https://www.flashrom.org/Contact for details), thanks!
FAILED