[HOW-TO] LG Gram 14Z970 Phoenix BIOS Strings extract

[Falco.]

Request solved - here is the How-To:
I found out how to extract the strings: Releases · BoringBoredom/UEFI-Editor (github.com)

Open the bios in UEFITool. Press CTRL + F and perform a Text search for any known BIOS setting name. Double-click the reference to the section at the bottom, right-click the section (usually under Setup) and press Extract as is....

Convert the extracted file with IRFExtractor. Rename the output to a.txt, move it to the folder containing this script and run it.


This was my Request:

Hi,

I have an issue with the 20V 2.25A DC requirements of my Laptop:

If an external Monitor is connected and battery is charged, a 30W charger is sufficient to provide 20V 1.5A

But if you do not use an external Monitor, the DC input will go over 2A for a split second.

This behavior makes it impossible to use a lightweight 30W charger, even if the device isn't actually pulling 30W. The initial request makes all my 30W adapters go on and off repeatedly.

I would like to know if there is any option in the hidden menus of the bios file which may could affect the behavior of the DC plug.

The USB-C plug is not usable, it only accepts 18W over Power delivery. And even worse, if your PD charger has PPS, the laptop gets confused during PD negotiation and will not take any power over USB-C at all.
So I have to intentionally search for USB-C PD chargers which don't have PPS to get at least 18W.
I don't think we can patch this, so I bought an PD Trigger which negotiations for 20V and this little trigger device can be plugged into the DC port. But my 30W adapters can not handle this. Only the heavy 45W adapters work
But as soon as I connect an external Display, it accepts 30W adapters.

I hope you have better tools than me and have some time to help me with an extract of the hidden menus, because searching through with a hex editor is painful and doesn't expose the possible select options.

Here is the BIOS
  backup.zip (Size: 3.34 MB / Downloads: 3)

Kind Regards
Falco

[Falco.]

I found out how to extract the strings: Releases · BoringBoredom/UEFI-Editor (github.com)

Open the bios in UEFITool. Press CTRL + F and perform a Text search for any known BIOS setting name. Double-click the reference to the section at the bottom, right-click the section (usually under Setup) and press Extract as is....

Convert the extracted file with IRFExtractor. Rename the output to a.txt, move it to the folder containing this script and run it.


  b.txt (Size: 811.68 KB / Downloads: 5)

Unfortunantly the variable behaivor of the DC Plug is not configureable, it is hardcoded in any of the BIOS binaries