Dangerous BIOS update, the update once the failure led directly to the computer screen, a black boot no English no cursor, nothing appears on the computer which is basically disassemble unfamiliar people can not write BIOS, this situation can only be returned to the manufacturer , while the maintenance department will only give you replace the motherboard. Therefore, in normal operation of the computer is not recommended updates, if forced to update it to Lenovo homepage under BIOS, run software like, pay attention to all software updates to try to shut down after the BIOS update does not affect the problem, because even if the procedure is pretty smooth in the most secure BIOS update under DOS may still have failed. Higher under WINDOWS.
