Everything is correct. I flashed your patched bios. when trying to transfer dmi with the BCU program, errors occurred. I unsoldered the chip again and flashed the old bios file. what is interesting is that during the manipulations with the files, the laptop updated the bios to the latest version, and the old file remained at version 01.09.00. after re-flashing the bios updated again. resets of the main bios and security system were required. and many long reboots. in the end, everything works and there is no password!...

Everything works. Thanks. I didn't succeed with BCU, I flashed the backup copy, but the password didn't return....

Hello,
Please help i need to remove password from HP 840 G9.
THANK YOU !
sn : 5CG34351QY
SKU: 9B2L2EC#ABD
BIOS: U71 Ver.01.09.00...