Lenovo 10B0 Maintenance Manual

Also see for 10AX: User guide

Contents

Updating (flashing) the BIOS from your operating systemNote: Because Lenovo makes constant improvements to its Web sites, the Web page contents are subjectto change without notice, including the contents referenced in the following procedure.To update (flash) the BIOS from your operating system, do the following:1. Go tohttp://www.lenovo.com/support.2. Do the following to locate the downloadable files for your machine type:a. In the Enter a product number field, type your machine type and click Go.b. Click Downloads and drivers.c. Select BIOS from the Refine results drop-down list box to easily locate all the BIOS related links.d. Click the BIOS update link.3. Click the TXT file that contains the instructions for updating (flashing) the BIOS from your operatingsystem.4. Print these instructions. This is very important because these instructions will not be displayed onthe screen after the download begins.5. Follow the printed instructions to download, extract, and install the update.Recovering from a POST/BIOS update failureIf the power to your computer is interrupted while the POST and BIOS is being updated, your computermight not restart correctly. If this happens, perform the following procedure to recover from the POST andBIOS update failure. This procedure is commonly called Boot-block Recovery.1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnectall power cords from electrical outlets and disconnect all cables that are connected to the computer.2. Open the computer cover. See “Removing the computer cover” on page 90.3. Remove the hard disk drive. See “Replacing the primary hard disk drive” on page 1114. Locate the Clear CMOS /Recovery jumper on the system board. See “Locating parts on the systemboard” on page 87.5. Remove any cables that impede access to the Clear CMOS /Recovery jumper.6. Move the jumper from the standard position (pin 1 and pin 2) to the maintenance position (pin 2 andpin 3).7. Reconnect any cables that were disconnected and reinstall the PCI card if removed.8. Close the computer cover and reconnect the power cords for the computer and monitor to electricaloutlets. See “Completing the parts replacement” on page 131.9. Turn on the computer and then insert the POST and BIOS update (flash update) disc into the opticaldrive. Wait a few minutes. Then, the recovery session begins. The recovery session will take two tothree minutes. During this time, a warning message will be displayed and no action is needed from you.10. After the recovery session is completed, there will be no video, and your computer will automaticallyturn off.11. Repeat step 1 through step 5.12. Move the Clear CMOS /Recovery jumper back to the standard position (pin 1 and pin 2).13. Reconnect any cables that were disconnected and reinstall the PCI card if removed.14. Close the computer cover and reconnect any cables that were disconnected.15. Turn on the computer to restart the operating system.Chapter 12. Additional service information 245