Macbook Air A1465 (EMC 2631) 820-3435-B firmware update guidance

Hi All,

I have a friends macbook air 11" (Early 2014) with a failed SSD. They can't afford Apples' prices, so want to opt for a non-Apple SSD. But Apple being Apple makes life difficult!!

I am trying to see if I can update to BIOS firmware(Mojave) using one of the files provided in the packages.pkg, but the MBA61 files are all SCAP. I normally work on PC's, so am familiar with manufacturers securely encapsulating BIOS's, i.e. .CAP. Using UEFITool, I can open my BIOS and browse, and I can open the MBA71 because it's an .fd file, but the .SCAPs do seem encapsulated. Is there any tool to un-encapsulate?

I have dumped the current BIOS to file using Flashrom and SPIpgm, and checked that I have a stable copy using HxD's compare. On the Mac in hardware overview the ROM version is 110.0.0, and the SMC is 2.12f143.

Is a direct firmware update even possible? - I can do this on PC's, using for example FD44 editor, to edit a fresh blank BIOS before flashing.

I am already aware of the serial number found under the "override-version" section using HxD. And the need for a clean ME region. But these SCAP files seem to be a stumbling point?

Ok, F^ck it!

If I'm not mistaken, I'm on the latest firmware!?!
I found this firmware repository on Github:
github.com/gdbinit/firmware_vault/tree/master/EFI/MacBookAir
And the latest firmware was from High Sierra 10.13..5, and the firmware was only 107; MBA61_0107_B00.scap.

Ok, I have a BIOS dump that works with the latest Jetdrive 850 SSD if anyone wants a copy:-)

No further help required with original topic subject, although none was given:-S

BIOS file available here:
mega.nz/#!C2YkUQAC!ehKPbpgeJRPplGzckQ2-QlpmF0WSTxwNLLo-pgHm0DA
open it in HxD and search for text-string 'YOURSERIALHE' and replace that text with your serial number.
Don't forget to clean the ME region as per articles found here on Ghostlyhacks. I am not responsible for you bricking your device.

Hi,
Can you help me with the efi dump of Macbook Air 11 A1465 EMC 2631 (Mid 2013) with latest Mac OS (Higher than High Sierra)? I am using nvme ssd drive and my bios being old, I can install High Sierra on ssd but it wont detect in boot. I need the latest dump with cleared ME region . My BIOS serial is C02LQ5Q3F5N8