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A1466 Early 2015 EFI (OS X) efi pinout
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niktele [ 29 ноя 2016, 00:49 ]
Заголовок сообщения:  A1466 Early 2015 EFI (OS X) efi pinout

Hello
can someone provide efi pinout on logic board to flash the bios chip?

i try like this but can`t read the chip

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MacBook Air "Core i5" 1.6 13" (Early 2015)
1.6 GHz Core i5 (I5-5250U)
Intro. March 9, 2015*
Order MJVE2LL/A*
Model A1466 (EMC 2925)
Family: Early 2015
ID : MacBookAir7,2

Shooter75 [ 29 ноя 2016, 01:34 ]
Заголовок сообщения:  Re: A1466 Early 2015 EFI (OS X) efi pinout

Chip pinout is same with standard DIP8/SOP8/SO8 SPI chips.
Connector pinout is in attached picture.

But the best way is to desolder the chip, solder to programmer adapter DIP8, or use a "crocodile"-type adapter,
reprogram chip using the SPI programmer, and then solder it back to MoBo.
If You can't do this - better will be to try it in any serious IT service center.

niktele [ 29 ноя 2016, 01:51 ]
Заголовок сообщения:  Re: A1466 Early 2015 EFI (OS X) efi pinout

thanks for that
do you maybe know why this guy use some kind of test point on another side of the board


Shooter75 [ 29 ноя 2016, 02:01 ]
Заголовок сообщения:  Re: A1466 Early 2015 EFI (OS X) efi pinout

It's not a some kind of test points, it's an in-system SPI programmer with special UEFI dump.
Time for repairing UEFI PWD lock is same with total 64Mb SPI reprogramming time with new, good SPI programmer, based on CYPRESS MCU.
I do this job not in 15 secs, but in 10 minutes. I use very old SPI programmer WILLEM2000 LPT.
It works nice, and I don't want to change them.

zenelli [ 03 дек 2016, 02:46 ]
Заголовок сообщения:  Re: A1466 Early 2015 EFI (OS X) efi pinout

Shooter75 писал(а):
It's not a some kind of test points, it's an in-system SPI programmer with special UEFI dump.
Time for repairing UEFI PWD lock is same with total 64Mb SPI reprogramming time with new, good SPI programmer, based on CYPRESS MCU.
I do this job not in 15 secs, but in 10 minutes. I use very old SPI programmer WILLEM2000 LPT.
It works nice, and I don't want to change them.



unsolder you the chip or are you using this isp connector with your programmer?

niktele [ 06 дек 2016, 01:48 ]
Заголовок сообщения:  Re: A1466 Early 2015 EFI (OS X) efi pinout

zenelli писал(а):
Shooter75 писал(а):
It's not a some kind of test points, it's an in-system SPI programmer with special UEFI dump.
Time for repairing UEFI PWD lock is same with total 64Mb SPI reprogramming time with new, good SPI programmer, based on CYPRESS MCU.
I do this job not in 15 secs, but in 10 minutes. I use very old SPI programmer WILLEM2000 LPT.
It works nice, and I don't want to change them.



unsolder you the chip or are you using this isp connector with your programmer?



I think to buy isp connector but for a reasonable price (if someone knows place to buy please share)
this time i will try to find alternate points to solder on board or reomve chip with hotair.

Posted after 1 hour 6 minutes 49 seconds:
final pinout from boarview

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