Press and hold the , Arrow Up Key , and Arrow Down Key simultaneously.
Locate the SPI Flash chip on the EliteBook 840 G6 motherboard. It is typically a Winbond or Macronix 8-pin SOIC8 chip (e.g., W25Q128JV or W25Q256JV). Note that some modern HP motherboards contain two chips: one for main BIOS firmware (16MB/32MB) and one smaller EC (Embedded Controller/Privacy) chip. You are looking for the chip holding the main system parameters. Step 3: Read and Backup the Current Dump
: Web tools like bios-pw.org rely on mathematical hashes generated after entering three incorrect passwords. The EliteBook 840 G6 belongs to a generation of enterprise platforms that do not output generic system-disabled halt codes.
and the small round coin-cell RTC (CMOS) battery to prevent short circuits. Step 2: Locate the BIOS/Security Chip
: This is a complex method involving desoldering the BIOS or EC chip and using an external programmer (like the Vertyanov Successor) to flash a clean firmware file. This carries a high risk of damaging the motherboard.
Unclip the programmer, reconnect the internal battery, and reassemble the laptop. Step 6: Initial Boot Configuration
: Performing a "Reset this PC" within Windows or using HP Recovery Manager will wipe your OS and data, but the BIOS-level lock will remain active. Do you have HP SpareKey questions already set up, or Reset forgotten HP laptop bios password A [12345678]
The BIOS admin password prevents unauthorized changes to boot order, security settings, or BIOS upgrades.
I tested shorting the RTC_RST pads (near the SSD slot) and pulling the coin cell for 24 hours. Result: Time reset, BIOS password remained. Don't waste your time.
To read the chip without unsoldering it (or a hot-air soldering station if you choose to desolder).
95% (some units require additional EC reset).
This information is for educational and lawful purposes only. Circumventing BIOS passwords on devices you do not own is illegal under the CFAA and similar laws.
Turn on the laptop and immediately start pressing the ESC key to open the Startup Menu. Press F10 to enter the BIOS Setup. Attempt Password: Enter an incorrect password three times.