OK, thanks for explaining. I've added warning in bold red font at top and bottom of that guide previously, several months ago, so warning is already there to make backup first then modify that in large red font. Should it be bigger, serious ?
None of your "I can't test list" would be affected by any of this, only what I mentioned, windows activation and LAN (Ethernet), and possibly RMA if you have to RMA if they check BIOS instead of sticker.

All BIOS store this information in various ways inside the BIOS volume you flashed, Asrock has it for sure, just depends on what is where but it's all within what you flashed over with empty except LAN.
You flashed in empty stock, so you lost it all (Specifically your NVRAM both volumes, and UUID, Serial), all will be gone for sure, except LAN MAC ID which is often outside of BIOS region in GbE region instead.

Yes, there may be copy of this in backup BIOS, unsure if it's a complete BIOS there or blank detailed one like stock, you can dump it and see if you have BIOS switches, or a flash programmer.

Hm... do we talk about the same post? There is no red warning in this post. [PROBLEM] Flashing a modded ASRock Z370 MB BIOS
Thats the post linked in Fernandos post.

As I said before, with HWiNFO I still can find a Serial which fits the Serial printing on my Motherboard. You are very sure, that this information have to go lost when I flash a stock BIOS this way? What is the NVRAM for? Can I check if empty?

Well, I always had luck with my Board and never needed RMA
I also updated Intel ME manually, I also would need to restore that to previous version.

Maybe I can dump the Backup BIOS with software, but I need to clarify with ASRock...

Not sure, I thought you said you followed this >> So you click on Here and you'll find this thread: [Guide] How to flash a modded AMI UEFI BIOS
Now you are at the AMI Thread. Again at mostly the bottom you see Update 3: "Solution: Affected users should use the "Flash Programming Tool (FPT)" instead and follow >this< guide written by our Forum member Lost_N_BIOS."

And ended up on my guide here, as you mentioned - [GUIDE] Grub Fix Intel FPT Error 368 - BIOS Lock Asus/Other Mod BIOS Flash

The other thread you linked now, is this thread, and my reply there was to another user, and speaking generally, nothing that should be followed by anyone at a later time, and certainly not a guide like you said you went to.
I will edit it now though and put warning.

Dump your BIOS, I will check it >> FPTw.exe -bios -d biosreg.bin
Yes, details must be gone if you flashed via FPT -bios -f filename.bin with stock BIOS.
Stock BIOS does not contain board specific details because it's generic file made for 10000's of users (So areas that contain this data are FF or 00, always, and FPT writes that directly in, vs updating with Asrock tool it will skip this area leaving your proper data in place as-is

You showed me number before with stack of 0000000's in it, whatever you see on your board may be general ID or partial UUID etc for this model, so may be contained in the stock BIOS already, I will compare with stock and your dump and let you know.
No, you can't dump stock BIOS with software, unless you have flash programmer. Asrock wont help you with any of this.

ME change directly in BIOS is fine if done correctly, hopefully you followed the ME update guide from here and cleaned ME during settings transfer, or otherwise hopefully you used the ME FW Update tool and a UPD file (or some ME updater from Asrock)

Thats why I am posting here. It is linked to the post.
I made a screenshot to completly clarify now :D The post of Fernando didn't specify, that this 'tutorial' is only made for this user...
https://i.imgur.com/wWmKfQt.png

Thank you for having a look, I will send you a link to download as PM.

I followed plutomaniac guides and hopefully followed all steps and warnings with choosing right Management Engine, Power Management Controller and create full firmware with Flash Image Tool and flashed it with FWUpdate -f. Run without errors and version number display fine in BIOS.

@Morku - Yes, that's my guide, that I've been referring to, that you initially said "I followed this". In that guide, in big red bold font at the beginning and end there is huge warning to backup your BIOS first with FPT, then modify that for flashing.
I guess we need to edit both, to clarify further? The post I mentioned that may be only for that one user, was the post/thread you linked just recently in your reply, in post #47, where you seemed to say "No, I meant this, not your guide with the warnings"
That tutorial you are now, again referring to in your image, that I assumed you meant from your original reply, is for everyone, and specifically warns you in big read letters as I mentioned, at beginning and end of the guide, to make a backup first with FPT, then modify that, then reflash that.

Your ME should be fine, since you followed the guide, and used ME FW update tool too, so nothing to worry about there or you would have known immediately due to ME failure if something was wrong.

Zitat von Lost_N_BIOS im Beitrag #2

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Did you try to flash via FPT yet instead? If not, try, here is FPT version you need in this package, run from command prompt at the folder location (put mod BIOS inside folder too) It's inside "Flash Programming Tool" folder
https://mega.nz/#!GB9XSBqZ!2lnEz1iVjW6Do...wS6ojpyYI29FUo0

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Zitat von lordkag im Beitrag #22

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@MDoehler
There are a few things to check before moving on:
- DO YOU UNDERSTAND THE RISKS INVOLDED? I write in all caps because it is a serious matter. Despite my best intentions and my research, things can very well go south and you might end up with an expensive brick. Remember that I patch a firmware flasher to ignore some safety/security measures.
- Do you have an ASRock Fatal1ty Z370 Professional Gaming i7 with the latest BIOS, which is 3.20 at the time of this post?
- Can you flash a modified image with Intel FPT or by any other method? We need a way to flash a patched Instant Flash module.

If we can proceed, these are the steps:
1. Flash the latest official unmodified BIOS from ASRock with Instant Flash. We need to rule out any bugs in the official firmware.
2. Dump your current BIOS with FPT using the command "fptw64 -D bios_full.bin" and also "fptw64 -BIOS -D bios_rgn.bin". Keep them safe, put them on some external flash storage.
3. Using the files from the point above and the attached archive, run the following commands: "UEFIPatch.exe bios_rgn.bin patches1.txt -o bios_rgn_p1.bin" and also "UEFIPatch.exe bios_full.bin patches1.txt -o Z37_p1_3.20".
4. Run the command "fptw64 -BIOS -F bios_rgn_p1.bin".
5. Shutdown the computer.
6. Enter Instant Flash and try to flash a modified image that previously gave you an error. Remember to apply the patch using "UEFIPatch.exe your_bios_file.bin patches1.txt -o your_bios_file_patched.bin"
7. If unsuccesful, repeat steps 3-6 while replacing patches1.txt with patches2.txt and bios_rgn_p1.bin with bios_rgn_p2.bin and also Z37_p1_3.20 with Z37_p2_3.20
8. If unsuccesful, repeat steps 3-6 while replacing patches1.txt with patches3.txt and bios_rgn_p1.bin with bios_rgn_p3.bin and also Z37_p1_3.20 with Z37_p3_3.20
9. Report the outcome. If all patches are unsuccesful, provide text and/or pictures of the messages that appear on screen during a normal Instant Flash and one during the security error.

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@lordkag - did you ever get any further on this yourself, or make other attempts? I think the above person is the first to reply to you about this since you posted it, which we thank them for trying finally!

@lordkag
Sorry,I've just tried P1 and P1+P2+P3 , I will continue to test later. just like p1+p2 p2+p3 .

Link dosent work.

https://mega.nz/#!GB9XSBqZ!2lnEz1iVjW6Do...wS6ojpyYI29FUo0
Ok i see its new link
Intel Management Engine: Drivers, Firmware & System Tools

I update my Z390 Extrem4 in to Z39EX44.30
fptw64.exe -bios -f Z39EX44.30Moded.bin
this will flash moded bios ?

Yes yes yess its works on my ASRock Z390 Extreme4 4.30.
Bios moded in UBU and download Intel CSME System Tools v12 for 300series.
fptw64.exe -bios -f modbios.bin

PS: F**k you AsRock and your Security pass.

I have ASrock Z370 Pro4 and problem with updating modded BIOS, as everybody else. Is there a definitive solution - guide for the problem?