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HP

The general procedure for creating stock firmware is to download from HP website directly. Once downloaded, BiosExtractor can be used to create stock firmware.

HP BIOS update is normally in self-extracting EXE file when downloaded. Even if you can successfully extract it using conventional decompression software, the resulting firmware file is encrypted. Creating stock firmware for HP laptops mostly follow the process in the next section.

Newer HP Bios Update Utilities gives you the option to create stock firmware or create crisis disk recovery which you can use to recover corrupted system bios.

General Procedure

  1. Download BIOS update utility from HP Website
  2. Extract the downloaded EXE file using BiosExtractor or other decompression tool
  3. Decrypt the firmware using BIOSCreator.
  4. Verify that the decrypted firmware has the correct file size.
  5. If the firmware does not have the correct file size, continue processing the file by splitting the firmware into EC and System BIOS.
  6. Verify the BID# to make sure one of the decrypted firmware is compatible with your laptop
  7. Copy the DMI info from the old dump to the stock firmware.

Examples

Example 1 - HP Pavilion 14-AC137TX

Perform the firmware extraction similar to the process below. After the extraction process is completed, identify the BID# of the old fimrware dump to check which of the extracted firmware is exactly matched with your firmware dump.