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

[mferna14]

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

People please guide @ ViLex to the correct thread, this thread is ONLY for BIOS, kindly re-guide him to a software thread where he will get the help... Thanks

[ViLex]

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

People please guide @ ViLex to the correct thread, this thread is ONLY for BIOS, kindly re-guide him to a software thread where he will get the help... Thanks

Don't cry, I'll leave myself. Thanks

[burkancho]

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

hello friends, can someone give me original bios without a serial number and without a password?

[burkancho]

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

I use Ufix U-bos2 but he puts the same serial number on all of this model. Even with a USB stick it is not possible to change the serial number because it is already recorded by the programmer.Can some one helps please

[SMDFlea]

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

I use Ufix U-bos2 but he puts the same serial number on all of this model. Even with a USB stick it is not possible to change the serial number because it is already recorded by the programmer.Can some one helps please

It can be changed using a hex editor and UEFITool

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

Alternatively try Apple-UEFI-Patcher
https://github.com/sadponyguerillaboy

[peste]

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

I use Ufix U-bos2 but he puts the same serial number on all of this model. Even with a USB stick it is not possible to change the serial number because it is already recorded by the programmer.Can some one helps please

post the original bios, EMC, full name and model of the laptop, motherboard number, serial number S/N..

[burkancho]

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

I don't have the original one on the laptop, I have the one that puts u-bos2.The bord is 820-3437-B A1466 EMC2632 the programmer automatically deletes the old one without backing it up and overwrites it with the same serial number

[burkancho]

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

This is the file with which the programmer flashes the bios with the same serial number

[peste]

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

This is the file with which the programmer flashes the bios with the same serial number

also post the S/N...that the laptop must have....

[burkancho]

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

I have too many different models locked and I want to resolve this case without having someone overwrite serial numbers for me.
When I use the USB stick on the U-BOS2 to overwrite the serial number it gives me a message -A serial number was detected. Blank Board Serializer (BBS)can only run on machines with blank serial numbers.The serial number that U-BOS2 records for board 820-3437 is this C02LNKBUF5V7

[SMDFlea]

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

I have too many different models locked and I want to resolve this case without having someone overwrite serial numbers for me.
When I use the USB stick on the U-BOS2 to overwrite the serial number it gives me a message -A serial number was detected. Blank Board Serializer (BBS)can only run on machines with blank serial numbers.The serial number that U-BOS2 records for board 820-3437 is this C02LNKBUF5V7

You could try filling the serial number with FF`s or 0`s ,if changing only the serial doesn`t work fill the checksum as well.I never tried it,so not sure if it will work or not.

[burkancho]

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

YESSS Thanks I got it After removing the password with U-bos2, I have to manually change the serial number with a hex editor and UEFIToll_NE_ALPHA_64

[peste]

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

I have too many different models locked and I want to resolve this case without having someone overwrite serial numbers for me.
When I use the USB stick on the U-BOS2 to overwrite the serial number it gives me a message -A serial number was detected. Blank Board Serializer (BBS)can only run on machines with blank serial numbers.The serial number that U-BOS2 records for board 820-3437 is this C02LNKBUF5V7

tri this..

[Gobbla]

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

hello everyone
sorry foe silly question but I used for long time ezp2019 programmer but looks like its not reading a1466 bios chip + they are cheap and clips always broke quite quickly.
And my question is what other better programmer I could use ?
As I feel its time to invest in something better
thanks and have good day everyone !!!

[Vesko356]

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

hello everyone
sorry foe silly question but I used for long time ezp2019 programmer but looks like its not reading a1466 bios chip + they are cheap and clips always broke quite quickly.
And my question is what other better programmer I could use ?
As I feel its time to invest in something better
thanks and have good day everyone !!!

https://www.badcaps.net/forum/showpo...40&postcount=2

[rasta24]

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

can someone help me remove efi password please

[peste]

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

can someone help me remove efi password please

try..

[bibi019]

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

i have one macbook air a1466 emc 2632 year 2013 with efi lock
i read the bios ship with rt809h tool and modified the file with winhex but
now the mac some times power on and some time not power on and the lock still
can some one modified my file

[alfredposadas09]

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

here is your unlocked file

[bibi019]

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

here is your unlocked file

not working the mackbook still locked with 4 digi pin efi
any help