EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

[Ghamidi]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Hi, can someone help me to unlock this dump of this macbook air 1466 emc 2632 820-3437-b , it is locked when i try to install so, thanks

try..

[magictouch]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Hi, i got a macbook air a1466 emc 2632 its locked with Efi lock can somebody please help me, i will be very grateful. first attempt on a MacBook
Regards

[peste]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Hi, i got a macbook air a1466 emc 2632 its locked with Efi lock can somebody please help me, i will be very grateful. first attempt on a MacBook
Regards

try..

[magictouch]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

try..

Hi,
Thanks a lot, it worked you are a huge asset at the forums.

[GSM_DOCTOR]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

my a1466 has EFI password...please help me to removed

[peste]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

my a1466 has EFI password...please help me to removed

try..

[GSM_DOCTOR]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

try..

appreciated bro...thanks

[victoryu28]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Serial number has to be edited and Fsys checksum corrected accordingly.

Please watch this Video carefully, I learnt all from this video... Fsys & Checksum has to be corrected in order for the notebook to work. Or send me the Notebook serial # & the EMC # of your notebook, I will send you a good updated working file, Just you have to program it to the SPI BIOS & solder it.. Nothing else you have to do.
check this useful youtube video https://www.youtube.com/watch?v=poA8HByYqTM

serial: C02N24W6G086
emc: 2632

if you could do send me a good working file so i can program it to the spi i would really appreciate it.

[llcoolr]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

can anny one clean my bios

[Vesko356]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

can anny one clean my bios

Here you are

[GfilipeZ]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Serial number has to be edited and Fsys checksum corrected accordingly.

Hi,

Sorry i know this is an old topic...

I'm trying to edit this efi firmware, but I'm facing some problems. I was able to edit SN and the last 4 digits, but I can't find Fsys checksum part, to correct.
The logic board version, is the same of this topic.

The problem: if i let the macbook rest for about 10/15*min, when I try to boot, the fan spins only 1/4 and stops. I press again the power and the fan spins normally, but there is no boot, neither image. So I have to shut down, and when i press the power button again, it boots normally.

Best regards!

[SMDFlea]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Hi,

Sorry i know this is an old topic...
Best regards!

09 27 A7 C3 ,open the bios with UEFITool it will tell you what the checksum should be

https://www.badcaps.net/forum/showpo...43&postcount=5

4.3. Apple
For 2017 and older machines, serial number is stored in Fsys store of BIOS and can be edited with hexadecimal editor. Fsys checksum needs to be fixed afterwards
Search for "ssn", edit the serial number, save, open dump in UEFITool, go to the Fsys store and write down the suggested checksum in the panel on the right. Checksum is 4 bytes at the end of the Fsys store, between one zone of 0x00 either Gaid or another zone of 0xFF, it must be written in reverse order (so last 2 characters from UEFITool must be written first).
See: https://www.youtube.com/watch?v=poA8HByYqTM

[GfilipeZ]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

09 27 A7 C3 ,open the bios with UEFITool it will tell you what the checksum should be

https://www.badcaps.net/forum/showpo...43&postcount=5

4.3. Apple
For 2017 and older machines, serial number is stored in Fsys store of BIOS and can be edited with hexadecimal editor. Fsys checksum needs to be fixed afterwards
Search for "ssn", edit the serial number, save, open dump in UEFITool, go to the Fsys store and write down the suggested checksum in the panel on the right. Checksum is 4 bytes at the end of the Fsys store, between one zone of 0x00 either Gaid or another zone of 0xFF, it must be written in reverse order (so last 2 characters from UEFITool must be written first).
See: https://www.youtube.com/watch?v=poA8HByYqTM

Thank's for the quick reply.

Yes, i'm following exactly that video. With UEFITool, i was able to find the checksum. What a can't find, is the part on bin file "Gaid". Like the tutorial video, on min 5:55. It appears like i send in the last picture.

[SMDFlea]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Thank's for the quick reply.

Yes, i'm following exactly that video. With UEFITool, i was able to find the checksum. What a can't find, is the part on bin file "Gaid". Like the tutorial video, on min 5:55. It appears like i send in the last picture.

Listen carefully to the video from 6 minutes,piernov explains that newer bios versions have no gaid string. Watch the next part at 7:20

[GfilipeZ]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Listen carefully to the video from 6 minutes,piernov explains that newer bios versions have no gaid string. Watch the next part at 7:20

I'm so sorry SMDFlea...

Many thanks!!!

[SMDFlea]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Many thanks!!!

I`m happy youve got it now

[mfinardi]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Hi! I have a problem with an 820-3437 card. I bought from China. She has outdated bios and I don't have the serial. Because I installed a new version and forgot to save the original firmware. I'm a beginner and I made this mistake.
I have the board that works. But I don't have her original serial. Do you have a solution to my problem?

[peste]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

Hi! I have a problem with an 820-3437 card. I bought from China. She has outdated bios and I don't have the serial. Because I installed a new version and forgot to save the original firmware. I'm a beginner and I made this mistake.
I have the board that works. But I don't have her original serial. Do you have a solution to my problem?

post the original bios and S / N on the case.

[mfinardi]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

post the original bios and S / N on the case.

The problem is that I don't have the original firmware. As I said before.
I writed over. There was my mistake. That's why I don't have the serial number for the board. I have a firmware that turns on but starts very slow.

[SMDFlea]

Re: EFIBIN File MacBook Air A1466 (EMC 2632) 820-3437-B

The problem is that I don't have the original firmware. As I said before.
I writed over. There was my mistake. That's why I don't have the serial number for the board. I have a firmware that turns on but starts very slow.

peste asked you for the serial number on the case (the metal base,there`s a serial number on it),do you have the full laptop or only the motherboards