Re: ASUS X55A - restore serial numbers
ok i think i got this. the offset of the mac address should be 1000h. I don't know why but in the bricked dump it was 88 88 88 88 87 88, as in the generic .rom. I forced it to my mac (hex, retrieved from a label inside the chassis) and flashed. Now it is showing properly in windows.
At this stage:
- serial number -> ok!
- uuid -> ok!? (it looks fancy, 00000011-0000-0000-0000-MacAddress, but i have seen other asus laptop with similar uuid on the internet, so it might be)
- mac address -> ok!
...
io00
Member
Last Activity: 05-20-2019, 05:28 AM
Joined: 05-13-2019
Location: Padova
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Last edited by io00; 05-19-2019, 08:49 AM. -
Re: ASUS X55A - restore serial numbers
Status update:
-found a region on the bricked bios with relevant serial numbers (it was different from that suggested by SMDFlea, however)
-pasted it on the generic bios
- machine serial number and uuid are now showing up in windows
The only thing missing in windows is the lan mac address. i have found two strings in the bricked bios with the mac address and i have copy-pasted them, but apparently they are not enoughLeave a comment:
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Re: ASUS X55A - restore serial numbers
unfortunately, the flash image tool can't load the bricked bios due to corruption...so i cannot perform an ME clean as far as i know.
However, the info you gave me on the DMI area is quite interesting: does it mean that copying the sectors from 2FE50 to 301DF (included) from the bricked bios to the functional one *might* give me a functioning bios with serials, mac and UUID? (as i already stated in the opening post, win key area is not of main interest)
Thanks...Last edited by io00; 05-18-2019, 05:18 PM.Leave a comment:
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Re: ASUS X55A - restore serial numbers
Thanks for the links. I've already read a lot on that site.
Using the hex editor in notepad++ i was able to manually recover the block containing the serial number of the machine, along with other interesting strings (maybe UUID and MAC address?). I've already transferred them in the working .rom, and tomorrow morning I'm going to flash the chip once again. However, amibcp doesn't seem to pick the serial up on the modified rom...
Ill' keep the thread updated if the solution is foundLast edited by SMDFlea; 05-07-2023, 07:07 AM.Leave a comment:
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Re: ASUS X55A - restore serial numbers
Can you suggest a program to inspect the original corrupted bios? amibcp4.53 crashes when i try to open it (it doesn't crash with the other dumps, though)
Thanks...Leave a comment:
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ASUS X55A - restore serial numbers
I have an ASUS X55A that suffered a bios corruption when i manually changed a bios parameter (enable-disable internal pointing device) and then prompted it to "save and exit".
I've bought a ch341a programmer, retrieved the dump of the corrupted bios, erased the chip and flashed a working .rom (version v413).
The laptop booted and i was able to update the bios to the last available version (v417), which i dumped once again.
I now have these files:
1. original corrupted bios (v417, i believe)
2. working bios v413
3. working bios v417...Last edited by io00; 05-18-2019, 07:38 AM. -
Re: Need K55A Bios Dump
if someone else finds himself in the same situation, try to search "Asus F55A MB X55A REV-2.1" on google to retrieve the correct .bin file for the laptop. Then flash, update to version 417 using the cap file from asus and save a working dump to keep in case of further problems...Leave a comment:
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Re: Need K55A Bios Dump
Well, maybe I spoke too soon... i have no longer access to the usb ports... any suggestion for my x55a?...Leave a comment:
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Re: Need K55A Bios Dump
Flashed "asus new" on an Asus X55A. Everything went good.
Thanks!
Of course, now the bios believes that it is a k55, but it's ok. I think they are essentially the same machine, just with an unlocked chipset on the k55.
If someone, like me, is using a cheap CH341A programmer with clips to flash, be aware that you might want to cover with electrical tape pin 8 of the bios chip to ensure that it is properly recognized by the program (it has to do with the voltage supply to the chip)...Leave a comment:
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