This utility is often described as a tool used to "burn" or "tattoo" information onto the system board because it physically writes data to a chip, much like a permanent tattoo. The specific "HPBQ138" version is just one of many variants HP has produced over the years, each tailored to support different motherboard chipsets and laptop models. The function of this tool is highly specialized: it is designed to restore or update the , which includes the device's serial number, product number, and model.
Once the utility opens the , navigate the menu to manually fill out your missing data strings: 0 – Serial Number 1 – Notebook Model 4 – SKU Number 7 – PCID String hpbq138 hot