A BIOS update for that laptop model would only be available from Lenovo's support website, but I've just checked and they haven't released any BIOS updates for it yet - - not for any Windows version and not an OS-independent BIOS update either.
So, according to the support page below, a BIOS update simply doesn't exist for it at this time:
A BIOS update for that laptop model would only be available from Lenovo's support website, but I've just checked and they haven't released any BIOS updates for it yet - - not for any Windows version and not an OS-independent BIOS update either.
So, according to the support page below, a BIOS update simply doesn't exist for it at this time: