G400, G500 can not be turned on using Windows 8 system wireless

Fault phenomenon:
G400 notebook, fault is power-on no display, after replacing the motherboard, it is found that wireless can not be turned on, the system is Windows 8 system, the method of installing Windows 7 version power management is invalid, The BIOS version is already up to date, and the Windows 7 system is installed properly.
Cause analysis:
Because the Windows 7 system wireless can be used, it is determined that this fault should not be a hardware failure, and may be related to the BIOS version.
Solution:
Download the latest BIOS solution on the service website.