Re: HP Elitebook 840 G6 bios password

The thing is that I've already done bios recovery flash drive using this version of Bios and even older but I cannot trigger it to run with neither Windows+V or Windows+B. The Capslock led light constant and nothing else happens. I tried to flash using this probe cable bin files I backuped but none of them apparently work properly now... So I wonder if I can download somewhere good copy of Bios bin file and use it to flash it to chip?

Re: HP Elitebook 840 G6 bios password

Hi Mazorca,
I will buy this adapter but it will arrive probably someday next week. However it is not clear for my why should I prepare USB recovery drive. I've done it already with file you suggested and can see under HP/DEVFW/firmware.bin around 30 MB is this bin file. Should I flash directly to chip? Or you want me to try restore bios from USB drive?

Re: HP Elitebook 840 G6 bios password

I must confess I have visited guide section and have read it but not good enough. I also tried with de-soldering bios chip but it turned out I had wrong (different dimensions) programmer adapter. So I decided to not play more with opening laptop, un-mounting motherboard and de-soldering & soldering chip bu instead I bought first clip with which I failed to read anything then decided to buy 'chip probe\ line read' for wson8 which is probably not so good option too. But anyway I know I have to do it hard way now. So I wonder if there is standard...

Re: HP Elitebook 840 G6 bios password

hi, that could be possible as I used ch341 programmer and various version of application for this programmer and depending on the version it was different chip versions to select. I did not know which one I should use. However after some attempts to read bios chip and unlock it with RcUnlocker and unlocker I made my laptop not booting at all. It only blink capslock. Tried to restore bios with usb pen with bios formatted and Windows + V and Windows +B but was not lucky at all. Any suggestions how to restore bios now?

Re: HP BIOS unlock tool

Hi could anyone please help me to remove password from bios HP elitebook 840 G6, Bios chip winband 25Q256JVEN 1938 6923 3K500...