Yes, but only on pre-2020 BIOS versions (F.30 or earlier). If the previous owner updated to F.40+, HP disabled this jumper. You will need to downgrade the BIOS using a USB recovery stick before attempting the jumper.
If you need to reset the password on an 840 G6 for work, a data recovery service, or to sell the laptop, you must use a or an SVOD (Smart Voltage Overtaking Device) .
This voids your warranty and can brick the laptop if you flash the wrong region (ME region corruption = no boot). Do not attempt this unless you are an electronics hobbyist.
