Hello @Lost_N_BIOS

BT2 is a different tool than BT, the command line interface has been changed and it will work with post 2011 computers when BT will not.
But it seems you have it :

Zitat

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Revision 1.10 (2/11/2011) - 62kb

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Yes I would like it please, mine is a little older :

Zitat

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BT -- ASUS(R) Block Transmit Rev. 1.10 BUILD 02/21/2011

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FPT does not work on my system, that is the error message I got when I tried it.
Since afudos works perfectly fine on my system, I use it.

During the past weeks I have used a ton of tools on windows, usb bootable linux, dos, efishell, I am getting tired of it

About the padding in the bioses, you are right, while seen as padding by uefitools it is probably not just padding.

When I tried to find a proper bios dump for my model, I have downloaded a lot of dumped asus bioses.
I Thought most of them where corrupted / had NVRAM cleared the same way I cleared mine.

After having repaired my bios with BT2, I have looked again at these bioses and they ALL have data in the "padding" volume.
All but one have their serial number written at offset 0 of this padding, the one beeing the GL502VSK.

Here are these bioses : http://s000.tinyupload.com/?file_id=00024500166902594096
I used these to determine at which offset I should write wich data.

Now I am not sure anymore there are always CNFG / MFG0 / OEM1 / ... variables in NVRAM.

I have succedeed getting back :
- keyboard backlight,
- LAN Mac address (shown in bios and seen in windows),
- Laptop Serial (shown in bios and seen in windows),
- Laptop uuid (generated a new one with BT2)

I did not succeed in setting back the motherboard serial, I have inserted it but windows do not see it.

For now I will stop trying to add info inside my bios until I can get a bios dump from the same model I have.

Anyway thanks a lot for your time and for this forum
I hope my findings can be useful to someone in the future :)


@Fernando no problem, that's fine by me :)

Looks like you have the same tool already? You said "mines older" and then showed same date

FPT does work on your system (For sure), and you didn't show the error you get so I can't comment further? AFUDOS does not work perfectly fine, hence this thread.

Yes, many BIOS out there provided by BIOS fix/recovery sites often have BIOS incorrectly flashed and then dumped so it ends up just like yours did here.
This is a workable way to dump BIOS to not have to spend extra five seconds to FF out system specific details from what you are dumping from, or easy way to create a complete BIOS that's ill boot from the stock BIOS, but is never actually dumped from any running system.
Pure lazy and incompetent is what this is called when a BIOS recovery or BIOS repair site hands out a file like this and specifically says it's a dump or calls it a dump etc (Direct lie, and they know it's not a dump)

Yes, as mentioned, many BIOS do use this specific padding area for information (often a copy of UUID, DTS key, serial etc is stored there). Never is CNFG/MNFG info stored here in padding areas, those go into NVRAM only, when used and yes they are not always used.

Once we have dump from this exact model I can put back in all your information in the correct format and proper locations.

Same version number but slightly different date, maybe one is build date and the other is release date.

Ok I have downloaded another version of ftp and this one worked.
I attached my latest dump. You may notice that while I was at it, I have upgraded intel microcodes, spectre and meltdown and such was the reason I wanted a bios update in the first place.

Zitat

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Pure lazy and incompetent is what this is called when a BIOS recovery or BIOS repair site hands out a file like this and specifically says it's a dump or calls it a dump etc (Direct lie, and they know it's not a dump)

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Actually most of the bioses of the collection I uploaded come from here or other bios modding forums, and are dumps that come from bios modding request / bios curruption fix request.

We shall see when/if we can get a working dump for my laptop, but I do think that CNFG/MFG0 are stored in the padding area in Asus bioses.

I will be offline a few days, but I will get back :)
Cheers !

Hi, I have GL502VT with 970m. I can send you my BIOS dump.

BUT the motherboard has been replaced and I do not have keyboard backlite. Can anyone help with that?

I have tried old solutions with ATK and old Gary Key fix (fixmykb) but it does not work - returns error "Can't wrote data."

Hi Bipper,

I had the same symptoms as you, and I could get my keyboard backlight to work again with the solution I described in this post :
[Help Request] Problems after an ASUS ROG GL502VT BIOS downgrade

You must use BT2, older versions of BT don't work with our laptop model.
I have linked the page where I found BT2 in my previous post.

WOW Great it works!!!!! :D My backlite is back. Please tell me if you need BIOS dump from my laptop!

@madkat - Thanks for helping Bipper get his backlight going again CNFG/MFG0 are in NVRAM, not padding area, but this is only in original BIOS source, it will not be there in recovered or downloaded from Asus BIOS.
Maybe when lost this info for backlight can be stored/obtained from the padding area, but CNFG is not entered there with it, I checked your after BIOS files above, it's not there.
Do you still need your system info put back in properly, or did you get all that sorted out now?

* Edit - Looking around in some other BIOS paddings post-recovery, I think maybe when no CNFG in NVRAM due to lost from bad BIOS flash, recovery etc, then it goes into padding at 0x1DD after MAC ID
Of course, all this varies between models too (offsets, and storage location/methods)

Can you please send me new dump of your BIOS region, after you fixed backlight. I checked your BIOS region from post #18 and it does not contain CNFG, so I would like to see your current BIOS.
And before you fixed it, between BIOS dump at #18 and using BT2, did you flash in any other BIOS region, or did you just use BT2 and it created the CNFG entry. I've been wondering if it can/will do that if missing, or if it will fail if CNFG is not there originally
Thanks

@Bipper - Yes, please upload a BIOS region dump, so I can use to confirm system details locations etc to help others, thanks.
Also, if you have, can you send BIOS region dump before you fixed backlight, and then after/current, thanks