After updating system BIOS through one of the methods on the Lenovo eSupport site (flash from operating system, flash from CD ISO image, or flash from USB flash package), the date and time in the BIOS Setup may be reset to the default settings (Jan 01 2011 12:00AM or Jan 01 2010 12:00AM).
The above symptom is associated to the following systems:
System is configured with:
The user should set the date and time manually. Once the date and time is set, they will be saved. This issue only occurs one time after the system BIOS has been updated.
This is a known issue with the system BIOS update. The Development Team is working to resolve this issue.