Hey all , I have an ASUS LAPTOP ( K42JC ) and I wanted to update the BIOS to ''BIOS 216'' and what I've in my laptop is ''BIOS 208''. Then I downloaded the update from asus.com. After that, I updated it using an external hard drive. When the update finished, I noticed that the laptops fan is working fast and hard and when the windows SIGN shows , the laptop reboot again. Then, I tried again and again and it reached the DESKTOP then reboot. I used the safe mood and it worked well . Furthermore, I went I saw a LIST of updates (209-212-214-215-216) and now I've ''BIOS 216'' in my BIOS so I tried to change it into ''BIOS 215'' and I did . Then, the (2 seconds to shutdown) appeared so it did shutdown.. But then its not working at all. I mean really at all . not even one light . The laptop is new, PLEASE TELL ME IF THERE IS ANYWAY TO FIX IT 216 should have FIXED the fan problem.  However, it appears the flash to 215 has failed; you probably have to sent it back to Asus for warranty repair.
http://support.asus.com/Download.aspx?SLanguage=en&m=K42Jc&p=3&s=248