bios for hp PROBOOK 455 G8

[hoaca388]

Thanks for the help., @rex98 & @hoaca388., Now I simply am puzzled. @rex98 you are saying not to touch the EC Rom where as @hoaca388 gave me a updated copy of EC Rom. Kindly inform me what to program back again. The Main SPI ROM or the EC Rom??? Get me out of this confusion. Thanks dear.

There are 2 ways to unlock this model: via bios or via EC.

[mferna14]

Thanks for the help @hoaca388., Your EC update worked 100% fine, no problems at all. I did not try @rex98 as I had to reprogram the main BIOS again & would be a longer process. Anyway GREAT help both of you guys.

[anonym277]

Hello guys i tried to read my EC from my HP 455 G8 with the CH341A Programmer but on my pc and the ch341A programm i couldnt find the chip Winbond 25Q256JVEN ?

[peste]

Hello guys i tried to read my EC from my HP 455 G8 with the CH341A Programmer but on my pc and the ch341A programm i couldnt find the chip Winbond 25Q256JVEN ?

try..
https://www.badcaps.net/forum/showpo...6&postcount=10
https://www.badcaps.net/forum/showpo...04&postcount=7

[anonym277]

try..
https://www.badcaps.net/forum/showpo...6&postcount=10
https://www.badcaps.net/forum/showpo...04&postcount=7

Thank you, i found the chip with the AS Programmer. But it seems like i cant read the chip via the clipper or do i make something wrong?

[hoaca388]

Thank you, i found the chip with the AS Programmer. But it seems like i cant read the chip via the clipper or do i make something wrong?

You used the wrong tool, with WSON chip you have to use this.

https://shopee.vn/Bigdealsnice-Sop8-...2-4f563c2c4430