[TUTORIAL] fix asus bios with bios from asus web support (by razor_amd)

[m1ch43lzm]

Try this
1. Decompose the BIOS image with FIT 16.1 (drag and drop)
2. In Build Settings - Build results, you can change the "Output path" and "Output Config XML path" filenames
3. Press "Save config", and close FIT
4. Extracting the ME region update from the ASUS provided BIOS update
4.1. Open X1502ZAAS301.bin from ASUS website with UEFITool.
4.2 Go to the last GUID, expand it, then expand the GUIDs until you see "LZMACustomDecompressGUID - Raw section", Right Click- Body hex view, should look like this:

4.3 Right click the same "Raw section" - Extract body, save as a new file, example: "MEupdate.bin"
4.4 Open FIT, and drag and drop "MEUpdate.bin", it will decompose in "MEUpdate\Decompose" folder and you get "ME Sub partition.bin", close FIT
5. Grab the "ME Sub partition.bin" and replace it on X1502ZAAS301NEW\Decompose folder
6. Open FIT, Load previous layout's configurations, select the .xml you saved on steps 2-3
7. Build the image, you get 2 warnings which are normal

[jaglion19]

First of all, I'd like to wish everyone the best. I can now create a BIOS file using the method described above, and there's no problem. However, I need to perform a Clean ME. I couldn't perform a Clean ME with version 16.1 of the Modular Flash Tool. First, when I copied the ME file to a folder, renamed it, and hit Build, I got another error. I found a 5-minute video online. It showed me that I needed to add the MFS and EFS sections to the BIOS file I needed to clean ME, so I added them. However, when I tried to build again, I got the error "Exception: Data bucket: 'OEM_KM'. Error: 'The public key in the OEM Key Manifest provided does not match the hash provided in CsePlugin:UEP:OemPublicKeyHash'.
Source: 'CsePlugin:OEM_KM'". Can someone help me with this?

[jaglion19]

Okay, I got it done. I just had to drag it, I was trying to open it by saying open.

[jaglion19]

* I prefer not to jump to latest BIOS version, find which version you have first, rebuild it, then update BIOS with EZ-Flash, search for X1502ZA, until you see something like this


In this example BIOS version is 300, download from https://www.asus.com/supportonly/f1502za/helpdesk_bios/ , click on "Show all"

For Intel CPU, you need a backup of the BIOS chip, make sure you get a good backup first, as we'll graft a new BIOS region to it

1. Use https://github.com/platomav/BIOSUtilities , install all the prerequisites

main.py X1502ZAAS.319

It will extract to a folder X1502ZAAS.319_extracted
2. Open "00 -- ALL" with hex editor, you have to cut it to the size of the BIOS region (for this model length is A00000, from 0 to 9FFFFF)
3. Make a copy of the BIOS backup you read with programmer, we'll graft the BIOS region to it
4. Find where the BIOS region starts, you can use UEFITool NE to open it, it's at 600000, length A00000
5. Paste write the selection from step 2 starting at offset 600000, on the copy of the BIOS backup (keep the original safe)
6. Open the original BIOS backup, search for GPNV, select from 660000-66FFFF on this model, copy/paste write to the "new" BIOS; that's the DMI area, it also has the Win license key
7. Save the new modified BIOS (Save as... new name)
8. Hope your ME region is intact, or less than equal to 16.1.25.2091, if it's higher the latest publilcly available FIT 16.1.25.2091 may not be able to decompose it

Latest ME Analyzer https://github.com/platomav/MEAnalyz.../v1.309.0-r375 should work (but it will say "Error: Unsupported Intel Engine, Graphics and/or Independent firmware!"), you have ME 16.x.yy.zzzz; ME version from the BIOS update you linked is 16.1.35.2557; unfortunately latest "public" FIT 16.1.25.2091 can't decompose later version

Post your BIOS backup on the X1502ZA thread if you need help, here: https://www.badcaps.net/forum/troubl...6-asus-x1502za
(ASUS is a bit weird, they rename the same laptop, yours is F1502ZA but uses X1502ZA BIOS)

Sorry to bother you again. I was able to get a proper bios by doing what you said, but I could not find the fit 16.0.15.1735 version. The modular flash version, which is 16.1, also gives an error. Is there another way to clean the me area?

[jaglion19]

Thank you so much for the valuable information you provided. I didn't know I needed to remove it with BIOS utilities. It automatically deleted the parts that should have been removed, so I had no problems. Thank you so much for your experience and helpful information. I will never have problems with this bios again.

[m1ch43lzm]

* I prefer not to jump to latest BIOS version, find which version you have first, rebuild it, then update BIOS with EZ-Flash, search for X1502ZA, until you see something like this


In this example BIOS version is 300, download from https://www.asus.com/supportonly/f1502za/helpdesk_bios/ , click on "Show all"

For Intel CPU, you need a backup of the BIOS chip, make sure you get a good backup first, as we'll graft a new BIOS region to it

1. Use https://github.com/platomav/BIOSUtilities , install all the prerequisites

main.py X1502ZAAS.319

It will extract to a folder X1502ZAAS.319_extracted
2. Open "00 -- ALL" with hex editor, you have to cut it to the size of the BIOS region (for this model length is A00000, from 0 to 9FFFFF)
3. Make a copy of the BIOS backup you read with programmer, we'll graft the BIOS region to it
4. Find where the BIOS region starts, you can use UEFITool NE to open it, it's at 600000, length A00000
5. Paste write the selection from step 2 starting at offset 600000, on the copy of the BIOS backup (keep the original safe)
6. Open the original BIOS backup, search for GPNV, select from 660000-66FFFF on this model, copy/paste write to the "new" BIOS; that's the DMI area, it also has the Win license key
7. Save the new modified BIOS (Save as... new name)
8. Hope your ME region is intact, or less than equal to 16.1.25.2091, if it's higher the latest publilcly available FIT 16.1.25.2091 may not be able to decompose it

Latest ME Analyzer https://github.com/platomav/MEAnalyz.../v1.309.0-r375 should work (but it will say "Error: Unsupported Intel Engine, Graphics and/or Independent firmware!"), you have ME 16.x.yy.zzzz; ME version from the BIOS update you linked is 16.1.35.2557; unfortunately latest "public" FIT 16.1.25.2091 can't decompose later version

Post your BIOS backup on the X1502ZA thread if you need help, here: https://www.badcaps.net/forum/troubl...6-asus-x1502za
(ASUS is a bit weird, they rename the same laptop, yours is F1502ZA but uses X1502ZA BIOS)

[jaglion19]

First of all, good luck to everyone, you have shared nice posts for these models, but in the new versions, I cannot edit or extract the bios files I downloaded from their website. I tried it with Hxd, ami extractor etc. and the uefitool program shows it as multi-part. Any me anlayzyer program does not show what is happening. That's why I don't know which version of flash image tools can open them or whether they can be opened, and I can't extract them from the bios I downloaded from the site. Can someone please tell me how to do this? I added a sample file

SN : N8N0CV05N037320
F1502ZA

[M4n0l0307]

Thanks Friend !

[lapfix]

NEED AMI PFAT EXTRACTOR
AMI BIOS GUARD EXTRACTOR

Only ver 2 is available , i can't find the new ver

[JOHNCOOPER]

NEED AMI PFAT EXTRACTOR
AMI BIOS GUARD EXTRACTOR

[M4n0l0307]

Thanks Friend !

[Sparklingx]

My question is.
1. I have previous bios dump but ( may be someone flashed bios directly downloaded from asus site) but I dont have any data.
No ME, UUID, MAC nothing I can extract from previous bios hence the mobo is dead rn and I want to revive it.
What to do now?
see attachment.

[Bilal@pc]

Thanks for you
Razor AMD.

[SMDFlea]

I am not a bios expert but as many have seen, the guide in question is no longer applicable on many Asus models. For example, Asus provides files that appear to only need to be changed in size but which are actually encrypted. The model on which the guide is based is now many years old and many things have changed

You`re right that its no longer applicable on many Asus models,but there`s still some useful info. All the other guides will become outdated as well over time.Its up to our members to write newer guides,we will gladly sticky them in the Bios guides thread.

[jasko_jacker]

I am not a bios expert but as many have seen, the guide in question is no longer applicable on many Asus models. For example, Asus provides files that appear to only need to be changed in size but which are actually encrypted. The model on which the guide is based is now many years old and many things have changed

[SMDFlea]

Use the next oldest or newer consumer version H .Using a slightly older/newer one is usually ok

[Themonster]

If my ME analyzer say vers 14.0.33.1125 and i need the RGN version but the unique version that have rgn is the corporate verion whta i need to do? in consumer version H

[Bimad99]

Thank you Razor

[SMDFlea]

Re: [TUTORIAL] fix asus bios with bios from asus web support (by razor_amd)

There are more broken win-raid links besides that one,they will all be updated.. soon

All broken win-raid links have now been updated throughout the whole forum.
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[Kemer]

Re: [TUTORIAL] fix asus bios with bios from asus web support (by razor_amd)

The external images have been added to badcaps. Thanks for the VPN explanation.We do ask members to add their images to badcaps as external image hosts can go offline or close down.
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I had missed this message. Thank you.