Some days ago I decided to update my bios to latest bc why not, sorry, I didn’t know at that time that I only need to update if it’s necessary.
LSS my laptop (Rog Asus G531GT) shutdowns at the middle of the update and then it bricks, I get a loop of just fans and leds, I tried everything, I manage to boot Flash Tool with ctrl + home once and tried to flash the bios again and the same problem appears, then I wasn’t able to bring that screen again, just black screen. Then I use a CH3421a to flash the ic with the bios I downloaded from Asus website, just to know that was a mistake not power at all after that, I previously did a backup of the corrupted bios, just once, I didn’t know I have to make at least 3.
Any way, I was able to flash a running bios from another machine but as I learn recently all critical data like MAC address and identifiers was gone, so now I can power the machine and enter the bios but I can’t boot any OS bc no ssd detection at all.
I don’t have idea how can I be able to fake an id or if I could find that info on the bricked backup of the bios.
I can’t find much on the web, im gonna search deeper here so I apologize in advance if this is a common topic.
I really need my Pc, is my only pc to do work and school stuff and I can’t afford a new one rn.
Edit: sorry for my English, is not my primary language.
If making one backup of the corrupted bios / firmware worked properly one backup is OK, but most people have a learning curve in working with a flasher, so there’s risk for errors. Then 2 or 3 reads with 100% identical content and a recognizable structure will confirm that this really was the content of the chip.
Attach your backup and the file you used for flashing to a post here.
UPDATE: I followed the guide I found here to clearm ME region on the bios backup I found from another machine, everything seems to went great, Im now able to boot windows, and almost everyting is working, just my secondn HDD desapears, not on bios and not on windows, y check conections twice and everything seems fine, HDD sounds so is power on and off with the machine, but not avalible.
OK, the static parts of the bricked bios are quite a mess, but other regions and maybe the padding with some board specific info do indeed look OK.
Cleaning ME was a good idea. But: In addition the ME settings from your original backup and from the file you used to flash differ quite a lot- did you by chance compare them?
I’d clean the ME of the backed up file, combine it with an original stock bios region and transfer the non-empty padding after NVRAM volume cutting the last 0x1000 (size of padding should be 0x10000) since those bytes now in padding belong normally to the next EFI volume.
Result should look like attached file (but I did use latest versiions for ME cleaning). meorg_308_pad.zip (8.5 MB)
