[flashrom] reporting a failed verify

[Joy]

sudo flashrom --programmer ch341a_spi -w 2ndpad_NVRAM.rom
flashrom v0.9.9-rc1-r1942 on Linux 4.4.0-62-lowlatency (x86_64)
flashrom is free software, get the source code at https://flashrom.org

Calibrating delay loop... OK.
Found Winbond flash chip "W25Q64.V" (8192 kB, SPI) on ch341a_spi.
Reading old flash chip contents... done.
Erasing and writing flash chip... Erase/write done.
Verifying flash... FAILED at 0x000a01a1! Expected=0x8c, Found=0x8e, 
failed byte count from 0x00000000-0x007fffff: 0x7e
Your flash chip is in an unknown state.
Please report this on IRC at chat.freenode.net (channel #flashrom) or
mail [e-mail], thanks!