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In-band manual recovery method

To recover the server firmware and restore the server operation to the primary bank, do the following:

  1. Read Safety and Before removing or installing server components.
  2. Turn off the server, and disconnect all power cords and external cables.
  3. Unlock and remove the server cover. See Removing the server cover.
  4. Locate the UEFI boot backup jumper on the system board. See System-board switches and jumpers.
  5. Move the UEFI boot backup jumper from pins 1 and 2 to pins 2 and 3 to enable the UEFI recovery mode.
  6. Reinstall the server cover; then, reconnect all power cords.
  7. Restart the server. The system begins the power-on self-test (POST).
  8. Boot the server to an operating system that is supported by the firmware update package that you downloaded.
  9. Perform the firmware update by following the instructions that are in the firmware update package readme file.
  10. Turn off the server and disconnect all power cords and external cables, and then remove the server cover. See Removing the server cover.
  11. Move the UEFI boot backup jumper from pins 2 and 3 back to the primary position (pins 1 and 2).
  12. Reinstall the cover. See Installing the server cover.
  13. Reconnect the power cord and any cables that you removed.
  14. Turn on the server. The system begins the power-on self-test (POST). If this does not recover the primary bank, continue with the following steps.
  15. Remove the server cover. See Removing the server cover.
  16. Reset the CMOS by removing the coin-cell battery. See Removing the coin-cell battery.
  17. Leave the coin-cell battery out of the server for approximately 5 to 15 minutes.
  18. Reinstall the coin-cell battery. See Installing the coin-cell battery.
  19. Reinstall the cover. See Installing the server cover.
  20. Reconnect the power cord and any cables that you removed.
  21. Turn on the server. The system begins the power-on self-test (POST).
  22. If these recovery efforts fail, contact your Lenovo service representative for support.