Flashrom 9.3 erarse and write error

Hi,
       We are using BIOS+ME region with the help of vendor tool.
> From Flashrom tool, we are looking for Save/Update the NVRAM BIOS setting region. We are able to read the NVRAM BIOS setting, but we are not able to write NVRAM setting as flashrom is not allowing us to write on to bios region. Because erase is not happening before writing and also spi_send_multicommand() in flashrom is failing.

If it is possible could you please help us to provide the command for erasing and writing on to NVRAM BIOS setting?

Thanks & Regards
Pradeep p

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