Thanks. That vars.txt shows it's set to 00 as well. same as the setup IFR >> @ Setup >> 000001F0: 00 00 00 00 00 00 00 00 00 00 00 00 01 00 03 00
So we can't change to S0 and write back vars.txt with H2OUVE This must be defaulkt setting as it appears, but then later changed to other value in NVRAM or other setup module is used

What is BIOS dump you sent me, F.14-red.rom? Do you want me to use that to unlock, or above linked sp55451.exe (0166CF41.bin)?
The f.14-red dump you sent, has untouched Setup Module (hex match) to the stock BIOS of sp53128 / 0166CF14.bin, so this dump is not from "unlocked" BIOS, only stock. Can you see "Advanced >> Chipset" Menu on this BIOS? If yes, I can just unhide G3 setting for you

I think the BIOS you want modified is not moddable? There is a moddable/notmoddable list here
https://www.bios-mods.com/forum/archive/...read-20767.html

Some can't be decrypted, all are encrypted, and seems some are RSA signed later so can't be modified
When you flashed in the mod by camiloml, did you first flash some other lower BIOS? If not, that may be why it's failing for you, you need to find a thread where he posted that BIOS for someone to use, and see which stock BIOS he said to downgrade to first.

Ok in that case try this ftp://ftp.hp.com/pub/softpaq/sp53001-53500/sp53128.exe
This is same as f.14-red also forget about G3 settings try to enable wake on lan

Edit: yes i did flash a lower one in fact i flashed this one then flashed the modded version from Cameloml

@abdulla060 - The way mod BIOS like that usually work, you don't flash same stock version then mod, you flash some older version before that one, then flash mod. You'll have to find the post where he originally shared that BIOS to know which you need to flash, but I know from experience it's not that same stock one, has to be older/previous.
That's probably why Camiloml mod BIOS was failing for you and breaking as soon as you changed any setting, it was flashed incorrectly.

The one you are using now sp55451 (F.41) is newer than the one Camiloml modified, so if you meant you flashed that one first, then defiantly not the correct one to flash before 53128 (F.14) Mod.
It would be sp52812 (F.07), or sp52469 (F.06), or some other before those not shown on the page above, that you'd need to flash before flashing in the 53128 mod by Camiloml

Wake on LAN is disabled by default, so yes, we can enable that via setup mod BIOS, or by using H2OUVE.

Here's how to do it using H2OUVE

At setup section near end of vars.txt you got
000001F0: 00 00 00 00 00 00 00 00 00 00 00 00 01 00 03 00

Change that line/4th byte ^^ To This >>
000001F0: 00 00 00 01 00 00 00 00 00 00 00 00 01 00 03 00

Then write back the edited vars.txt using this command from admin CMD Prompt
H2OUVE.exe -sv vars.txt

Then redump vars using this command, to verify it saved properly
H2OUVE.exe -gv vars2.txt

Once confirmed, reboot and then test wake on LAN

welp after all of this work and time I have finally managed to change the settings using this method but the settings didn't do sh8 lol.

now I can change whatever I want but the things I want are unaffected even if I change the settings. Like Wake on Lan enable or disable it doesn't work same for G3 settings. looks like I'm connecting an Arduino to the power button and call it a day.

Thank you very much for your kind help @Lost_N_BIOS without it I couldn't reach this point.

And for the future reader if you want to do anything with the power button. Then just connect an Arduino to it and don't take my route xD.

@Abdulla060 - Did you change the G3 setting like this
000001F0: 00 00 00 00 00 00 00 00 00 00 00 00 01 00 03 00

Change to
000001F0: 00 00 00 00 00 01 00 00 00 00 00 00 01 00 03 00 << Change to 01 for S5 or 02 for Last State

It may be like I mentioned a few times earlier, all these settings in IFR are not used, and actual applied settings are only in NVRAM instead.
I checked, and I see the same exact settings there, I think VARS.txt is NVRAM output here, and if changes not applied, then maybe I'm thinking backwards, NVRAM not used and changes can only be applied at the setup module instead

So yes, if you have programmer we can change your default setup module settings too and see if those get applied or not. Do you want me to send you BIOS with those changes in setup module?

@Lost_N_BIOS sorry for taking so long to replay. i had some work coming up. I did try S5 and last state but they didn't have any effect I also tried every Lan related setting trying to enable Wake on Lan but without any success either. But the method does work and I'm able to change other settings like AHCI for example and that does work without a problem so maybe the hardware doesn't support what i need.

But now I'm starting to have a new problem. I have another laptop that is identical to the first one same hardware, board, bios and everything (i bought both of the laptops at the same time). The problem is that if I use this method on the second laptop and change any settings then it would result in a brick and I have to reset the CMOS in order to make it work again(sound familiar). I tried to flash a different version of bios without a success I even tried the same the same bios from the first laptop and that didn't work either.

@Abdulla060 - so you are able to change AHCI to IDE using these methods, and it works? If yes, and the others do not, you are correct it may be due to lack of hardware support.
I don't know what all hardware wake on LAN needs, but I know there can either be a PXE module in the BIOS for wake on lan or not (I will check), can you see the LAN LED light when trying this enabled, and then not when disabled? I think that usually remains on when enabled.

Second machine BIOS, sounds like it's on a newer BIOS with maybe internal RSA signature checking or something like that. Flash it to the exact same BIOS you're using on this first one and see if same continues to happen.
Ohh, you tried this without working? Sounds like not the same model then, double check and make sure it's all exactly the same.