lenovo y40 bios protection

[osy]

Hi every body

I were using lenovo y400 for a year , but because of some problems ,I sold it and now I bought lenovo y40 instead,

I checked the bios version is 99cn24ww[ v 1.07] and noted that there is no slic table found, I copied the bios and moded by phoenyx 2.57 version

but the problem is ,I cant flash the moded bios with any way as every time I got error 28 that the bios is protected and cant flash it.

please is there is any way to flash y40 and bypass writing protection or disable this feature?

Thanks in advance

[kelleci]

As far i know there must be an option to downgrade bios in bios options.