https://rufus.ie/

Several things to mention here, you are not "Booting" into anything UEFI, however USB May need to be GPT as mentioned (I've done with MBR or GPT USB, didn't matter, as mentioned at the guide post I linked you to, MBR method used there)

HP tool will not work. You can use Rufus as mentioned above, or windows Disk management, diskpart, or any partition tool (EaseUS is good free one)

It may be due to some BIOS setting being set to Legacy only, which we'll have to change in other ways as mentioned previously, or wait on your programmer.
Did you run the stuff I linked you to at post #25? If not, please do now, and upload back for me, we can change BIOS settings that way if one of those work on your system

I checked BIOS settings, "Boot Option Filter" is set to UEFI And Legacy, so that is good. Storage option rom is set to UEFI Only, another plus. Boot Mode set to Normal (not Compatible) so + here too, and UEFI device is an option in all boot device entries, so it's ready
Secure Boot control is default as well (on security page, you should see this one I think). For that, you need to not have a BIOS Password set (ie be in User mode)
Launch CSM = Always Enabled

However, I see this set to Disabled in Debug - UEFI Priorities In Boot Menu
So due to this you will never see UEFI Option at Boot menu where you are looking now, I'm not sure this would remove possibility to set UEFI device as first boot device though, I think it only affects "Boot Mode Menu" if you go there manually like above.

Hopefully we can get a good SCEWin dump from post #25, then we can change things up!

I will read BIOS chip into external programmer and give a try.

Bad luck! I read BIOS...it result a 16MB file (128 Mbit). In file all seems to be encrypted...i dont know how to decrypt. I guess it cannot be done this way.

I try again with amisce. No result...

@bubu782001 - BIOS is not encrypted. Either you made a bad dump, or you just didn't know how to easily recognize BIOS. Please zip and upload for me and I will check it out and mod if it's a good dump.
What is your chip ID, and what software and version did you use to dump the BIOS with?

Here it is. It is readed 100% OK since i rewrite BIOS chip with the file which i read and is start OK. I use TL866 II Plus (minipro 2) for reading writing. http://www.autoelectric.cn/en/tl866_main.html

BIOS chip is Micron N25Q128A chip ID: 20 BA 18

------------------------

Still i want to do that without SPI flashing. It is pretty risky. Inside of BIOS there are variables of locking.

0x5DFCA One Of: BIOS Lock, VarStoreInfo (VarOffset/VarName): 0x4A, VarStore: 0x1, QuestionId: 0x5C, Size: 1, Min: 0x0, Max 0x0, Step: 0x0 {05 A6 95 01 96 01 5C 00 01 00 4A 00 10 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00}

0x5DFF0 One Of Option: Disabled, Value (8 bit): 0x0 {09 0E 1F 03 00 00 00 00 00 00 00 00 00 00}

0x5DFFE One Of Option: Enabled, Value (8 bit): 0x1 (default) {09 0E 1E 03 30 00 01 00 00 00 00 00 00 00}

There is no solution ?

@bubu782001 - You can't know it's 100% OK with checking file, since you said it looks encrypted, and we aren't sure if dump was OK, that's why I said send to me and I will check and let you know..
Dump may be 100% garbage and it will verify it as 100% OK, if it's not reading the chip properly (ie wrong software/version, or wrong ID used etc)
Since you wrote it back to chip, which I assume means you erased first, and then it boots OK, we can assume it's a good read and you probably don't know how to work with BIOS is why you thought it was encrypted.

Downloading BIOS now... >> Checked, this BIOS is fine, not encrypted, looks like normal BIOS as I expected if your read was OK

BIOS lock can be disabled easily, same way I showed you how to change SATA controller speed on page one, however you aren't able to boot to grub so that's an problem you can't get around without programmer

But, you don't know if BIOS lock is active for sure until you dump BIOS region with FPT and try to flash it back and get error (what error #)? Did you try already?

So, do you want me to disable BIOS lock and set SATA speed to 6Gb/s and send you the file back?
Or, Debug menu can probably be made visible too if you wanted, where the SATA controller mod is changed (and chipset settings could all be made visible too, if not visible now)
Up to you, since you have programmer anything is possible here, just may take an edit or two before I figure out method needed to make the hidden menus visible to you
I think just one edit, but sometimes may need additional edit or two on top of that, can't do all at once because sometimes that cancels out previous, needs tested in order.

Open BIOS in AMIBCP 4.55, you will see the debug folder I mean, and all the settings/submenus within. You can find AMIBCP 4.55 in google, if not send me a PM and I will show you link

Yes i try to flash with intel ftpw and shower error 280. I cannot boot into grub since i cannot activate UEFI.

I know 100% BIOS is ok, since i rewrite BIOS with programmer and laptop start without problem. If was a problem in dump, then 100% laptop wont be able to boot.

So the only way to modify locks on BIOS is by edit dump (that was read with programmer) and disable BIOS locks. Then write back dump modified with programmer.

After that, any mods should work with fptw utility...(after dumping BIOS region unlocked).
-------------------------

So...first i set mebu Debug to USER access. Write BIOS...laptop start OK, but nothing change in BIOS.

I want to enable UEFI options, and SATA3...

BIOS Locks i will disable when i have UEFI active. (i hope).

Next i try to enable UEFI menu.
----------------

Its ok to Disable or Enable these options ?

Please edit your posts when you want to add more info and no one has replied yet. It's very messy to see one person replying 2-3+ times in a row on same day

Grub does not require UEFI or Secure boot enabled etc, you can boot to it in legacy mode, I've done it plenty myself.\
What you mean to say there is you cannot figure it out, I even gave you directions on how to do it (how I did on legacy systems, without exit to shell or UEFI mode enabled etc)

Yes, I know BIOS is OK, as I mentioned after you confirmed that and I checked too
Yes, in general, that is what you do, dump BIOS, edit it, program it back. However, you may or may not be able to just edit it with AMIBCP and it be OK, or done.
That can break the BIOS, or not be all you need to edit, but generally yes that is how you edit BIOS if you can't figure out how to disable the locks via grub

Yes, after you disable BIOS lock and SMI Lock, provided FPRR/PRR is not set, then you will be able to flash with FPT.
You should also unlock FD before you program BIOS back, or you may get error 28 after removing all the other locks blocking you.

Yes, all edits you mention are OK, except "BIOS Interface Lock" you do not need to mess with.

And I know, you cannot simply edit BIOS with AMIBCP to enable debug menu, I was saying I could edit the BIOS for you, not for you to do it.
User may not be what you need here, Supervisor may be needed, or neither may be needed for debug/chipset folder.
However, you need to do other edits first to enable that menu (not with AMIBCP, but with UEFITool and hex editor)

BIOS Lock you can disable any time, via AMIBCP edit disable, or via grub/setup_var
UEFI menu is not a "Thing" you enable.

Please wait, I will make you three BIOS to test, which enables "Debug" menu to be visible. Then once you let me know, I will also enable "Chipset" for you, then you can make any changes you want i BIOS directly
And any still missing settings, you can make visible with AMIBCP via User or Super (you'll have to test which works, if you cannot see "access Level" on the BIOS "information" page

* Edit -@bubu782001 - Here, please test in the following order, which BIOS makes "Debug" menu visible (inside contents not relevant right now, missing items will be added later by you or me via access level change User/Super, or by Setup unsuppress if needed)
Stop once you see debug and let me know which it was that made it visible first, no need to test other BIOS in the list after you first see if visible.
1. String
2. StringBCPU
3. StringBCPS

http://s000.tinyupload.com/index.php?fil...806151489493361

That's it ! I flash first file "String.bin" and results are wonderful ! Debug menu appear and there are plenty of options available. It is awesome ! Thank you Lost_N_BIOS. It is really work. Now i can enable/disable what menu (option i want) with Debug menu.

Thank you mr. Lost_N_BIOS for all your work and your help ! You are the best !

I enable UEFI (and its working), i enable SATA3, some security options (also UEFI related), and some settings from Exit menu.

I also manage to boot from UEFI USB, and use grub to set Bios lock to 0x0. Intel fptw utilyty work like a champ and rewrite same dump perfectly. This mean BIOS is completely unlocked. I will lock again and only if i need i will unlock-it (i savedBios lock byte and is also here on forum in case of urgent need).

Now after i activated the options i need, i think i need to hide again Debug menu (i think its pretty risky to use every day).

It is ok to use AMIBCP and set Debug menu "Show" as "No" ?

@bubu782001 - Great to see that, thanks for result info! Now, anything you see missing in "Debug" that you can see in AMIBCP, you can set Access Level to User or Super and it should show up, if not, let me know exact setting and I can show you how to unsuppress it in setup.
Here is BIOS with both Debug and chipset enabled - Ohh, wait, do you not want BIOS with both debug and chipset menus enabled?

No, you can leave them all visible in BIOS, there is no danger, only you are going in there and changing stuff, if you don't change anything else then nothing gets changed and it doesn't matter if options are visible to you or not
You may want or need later, so I'd say leave it in case you want to change something else later.

I do have a warning for you though >> DO NOT try to change enable/disable any graphics controller!
You can change graphics controller settings like memory sizes or other features, but do not try to enable this one or disable that one, or switch what's main controller, otherwise you will end up with black screen / no display output.

To answer you about hiding debug, I don't know if setting no will hide that again or not? If you want, I can show you the actual edit that enabled it, so you can disable back to how it was.
It is a single byte edit done in hex editor, but you also have to use UEFITool to extract setup's PE32 module, this is edited with a one byte change and then inserted back into BIOS.
However, once you do that (either way) all settings will be reset again since you would flash in new BIOS, so kinda not something you can do and keep changes you made

You're welcome

Can i unlock others menus (or sub-menus) different from Debug menu ?

For example Chipset menu.

Can i just set Access/Use to User and that's it ?

@bubu782001 - Yes, as I mentioned a few times above, I can make Chipset visible for you too. That needs another edit first though, that is not in the BIOS I sent you.
No, Access level is not needed for that, unless after you flash the edited BIOS you still see missing items in Chipset . Here is BIOS with both Chipset and Debug enabled
If you do not see Chipset show up, then at the root level of the BIOS in AMIBCP (very top on left, nothing expanded), set chipset User or Super. But don't do that unless chipset doesn't show up by default after you flash this BIOS
http://s000.tinyupload.com/index.php?fil...808383912125664

Can i use amiflash for that?