Example: Create PROD-001.NSH containing:
| Error Message | Likely Cause | Solution | |---------------|--------------|----------| | "Unable to locate DMI data area" | Wrong DMI tool version for the motherboard. | Download the tool corresponding to your specific HP model series (e.g., Elite 800 G4 vs ProDesk 600 G5). | | "Write protected - cannot program" | BIOS lock enabled or SPI flash protected. | Disable "BIOS Write Protection" in the BIOS menu. Some systems require a jumper. | | "Invalid Feature Byte length" | Incorrect number of hex characters. | Verify the feature byte – should be an even number, typically 28-32 characters. | | "Boot failed: Not a valid UEFI application" | USB not FAT32 or .efi corrupt. | Reformat FAT32. Replace BOOTX64.EFI . | | "fs0: device not found" | USB not mapped or USB port not visible in UEFI. | Try a USB 2.0 port. Run map -r . Use fs1: or blk0: instead. | For IT departments refreshing dozens of motherboards, manually typing serials is impractical. You can automate by creating multiple .NSH scripts on the same USB. hp dmi tool bootable usb
map -r fs0: cd EFI\HP ls You should see HPDMI64.EFI or similar. The most common command is: Example: Create PROD-001
Introduction: What is the HP DMI Tool? In the world of enterprise hardware management and motherboard repair, few utilities are as crucial yet misunderstood as the HP DMI (Desktop Management Interface) Tool . For technicians working with HP commercial desktops, workstations, and some laptops, this tool is the key to restoring a system’s identity after a motherboard replacement. | Disable "BIOS Write Protection" in the BIOS menu
HPDMI64.EFI /W /S "SN001" /P "PROD-SKU-01" /F "FEATURE001" Then from the UEFI Shell, just run: