1. Extract the BIOS from file downloads from the homepage bios.exe hp.
2. Use this tool to build a bios.bin file complete.
3. Using WinHex (HxD) to modify or add information machine (DMI)
(DMI is series, SKU, model etc...)
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How to Extract BIOS HP - Compaq & add DMI 2.3
Guide HP BIOS extract and fix DMI by WinHex.