I already did tons of bios password removals in the past.
I seem to hit a brick wall at the moment. I got a Macbook Air a1465 2015 with efi password. I did these already in the past. I desolder the chip read, edit and write it back.
Now my programmer fucked up the chip in the middle of the first read of the chip. So i did not get a good read. I got a good bin from another Macbook Air which is exactly the same one. I wrote that bin on a new chip and soldered it back on the board. Now when i start the Macbook it starts extremly slow and it won't go any further than the Apple sign. It will also not boot to any usb software. I already resetted nvram and pram en did a smc reset.
I've read here somehwere on the forum that there's a unique signature which needs to be removed. I tried different bin's and all do the same. So what to do now?
The bin i wrote on the chip is in the attachments.
The original dump i was not able to get because the chip was fucked up by one of my co workers. This dump is taken from another Macbook Air which have exact same spec's and same year.
I've read somewhere on here that every dump has it's unique handshake with the CPU, that is why the dump from the other Macbook Air is not working. Can that be correct?
Yea, the ME region is not touchable. Well... effectively. Not to my knowledge anyways. i am sure that others much more capable than myself have done a hell of a lot more than I have with this. As of right now I think your best bet is to purchase a chip from eBay that's preloaded with the firmware and email the seller asking them to simply send you the file and not the chip for brevity.
i bought a chip from ebay and contacted the seller.
The seller told me they clean regions so the chips make new handshake when they first startup. To my suprise when i bought the bin and loaded it into my chip it worked like it's used to. Somehow these people can clean bin's.
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