Bios Mods - The Best BIOS Update and Modification Source

Removing cmos battery and flashing at first boot also doesn`t work

Read the sticky thread regarding usb recovery.

I will upload bios files and add link there for this version. Read the complete thread untill you understand how it works.

Already did. I did use phoenix tool, got recovery filename, renamed bios and add 03387.bin+sig file with the file structure on usb drive HP_TOOLS, removed cmos and big battery. Maybe I do something wrong, but win+b, fn-b, fn-esc, 4 pressed arrow keys is not working. I see flashing on my usb drive, so it is read, but result is always the same - blinking CAPS. What the [censored] I haven`t tried yet?

Now I`m studying this thread http://forums.mydigitallife.info/threads...ible-names

But I think recovery procedure is just different (=uknown) on this laptop
F#$k!

Did you unpack base in you pendrive? And renamed as HP_TOOLS?

Yes, did that too

camiloml, will you upload those bios files? I want to try it before going/sending to warranty service

Hello,I have the same laptop dm1-4000sd with last bios F19,I need to change the wifi card because it's not working anymore,but it doesn't accept any card I put it says wireless module not supported,iknow that the bios is locked to not accept any other wifi mini pcie cards outside hp,I used even exactly the same brand/model wifi card as the one it has but with another s/n p/n but didn't work,is there anywhere to download the F19 bios unlocked?
Or is there anywhere a list with the wifi cards that it accepts?
Thanks