Lenovo System x3750 M4 Installation And Service Manual page 215

Step 4. Move the jumper from pins 1 and 2 to pins 2 and 3 to enable the UEFI recovery mode.
Step 5. Reinstall the server cover; then, reconnect all power cords.
Step 6. Restart the server. The power-on self-test (POST) starts.
Step 7. Boot the server to an operating system that is supported by the Flash UEFI Update package
that you downloaded.
Step 8. Perform the firmware update by following the instructions that are in the firmware update package
readme file.
Step 9. Copy the downloaded firmware update package into a directory.
Step 10. From a command line, type filename-s, where filename is the name of the executable file that you
downloaded with the firmware update package.
Step 11. Turn off the server and disconnect all power cords and external cables, and then remove the
server cover.
Step 12. Move the UEFI boot recovery jumper (J71) back to the primary position (pins 1 and 2).
Step 13. Reinstall the server cover, and then reconnect all the power cables.
Step 14. Restart the server.
In-band automated boot recovery method
Note: Use this method if the BOARD LED on the light path diagnostics panel is lit and there is a log entry
or Booting Backup Image is displayed on the firmware splash screen; otherwise, use the in-band manual
recovery method.
Sw7
switch block
1
2
3
4
5
6
7
8
IMM lowsecurity
jumper (J86 )
IMM recovery
jumper (J115 )
1 2 3
2
1 3
UEFI boot
recovery
jumper (J71)
.
Chapter 4 Troubleshooting
201