[HELP] Flash BIOS version 9BCN91WW in BIOS with version 9ACN26WW in Lenovo Z50-70.

Hello,

i need to flash BIOS of my computer Lenovo Z50-70 because now i have a BIOS version for Lenovo G50-70 ( version 9ACN26WW). Some years ago one technical service change my BIOS because was broken and put one with this G50-70 version.

Im trying to flash version 9BCN91WW using insydeflash after modify platform.ini to dont check BIOS ID and BIOS version but after laptop reboot to flash gives a error : Update Bios Failed!

thanks