need help for bios downgrade samsung series 5 np520u4c-a01ub

ok its been months since i ve done the bios update and it didn't go well. the pc overheats and the fan doesn't start , i know its the bios because before it never did those things. current bios is p09ral. i checked the forums on how to make rollback but i don't know what version was the previous one , its something p07 ,look for it on google couldn't find anything. tried following Samsung rollback guide in forums but winflash gave me error message (warning security mechanism not supported...

need help for bios downgrade samsung series 5 np520u4c-a01ub

need help for bios downgrade samsung series 5 np520u4c-a01ub