: In the DOS prompt, type HPBQ138.exe and press Enter.
: Follow the on-screen menu to fill in your laptop's specific details. Use the labels found under the battery or on the bottom cover for accuracy.
Because it is a proprietary service tool, it is not typically available on the standard HP Support & Drivers page alongside regular firmware updates.
Using the wrong version of this tool or entering incorrect data can lead to a "utility cannot be executed on this platform" error or cause BIOS instabilities.