MacBook Air 2017 A1466 EMC 3178 820-00165-A No power

[longislandtea]

Hi, I' ve this MacBook Air with a strange problem. This laptop come in to my shop with initial problem PULSING (ON/OFF, no fan)

I wrote this attached bios dump that I clean me region by ME INJECT software and Macbook Power on but have a strange defect.

The Macbook Power on only when I connect the AC adapter without battery. It Never power on by clicking power key on keyboard. I also tryed to power on by SMCbypass on the motherboard.

When Macbook is ON and I press ON/OFF key the macbook go off without problem

I tryed to clean me region using FIT but I can't find efi payload for this model MBA7,2.


Can anyone help me?

[SMDFlea]

Did you make a bios backup before you started ? .MEInject isn`t recommended for anything over ME 6 in my opinion,and certainly shouldn`t be used with apple ME fw . Post the original bios backup

[mon2]

What was pulsing on / off?

Please post more details.

Very possible that you have a defective battery.

Restore your bios and post your voltage rail that is pulsing.

[Vesko356]

Originally Posted by ssio187dd

Hi,
Macbook Air 2017 A1466
EMC 3178
820-00165-A
SN: FVFVV003J1WM
Locked efi


please help me need urgent file to unlock and flash the efi chip
ssio187dd is online now Report Post

Upload your bios backup here.

[longislandtea]

Ok. This is the two dump.

[peste]

Originally Posted by longislandtea

Ok. This is the two dump.

try..

[longislandtea]

Not working

[peste]

Originally Posted by longislandtea

Not working

try..

[tata123]

buddy,

pulsing could also be an failuren with clock chip, check volatges, check Rails!!!

if you dont know which rails, ask for help!!!

[mek007]

hi guys i got a 1466 820-00165a with no fan spin and amber led on charger . the cpu warms up too but not powering up and does draw current.
i read spi but cant find file that matches my backup .00000000- 000FDFF0 ARE ALL F(ÿ)

[peste]

Originally Posted by mek007

hi guys i got a 1466 820-00165a with no fan spin and amber led on charger . the cpu warms up too but not powering up and does draw current.
i read spi but cant find file that matches my backup .00000000- 000FDFF0 ARE ALL F(ÿ)

post serial number S / N

[mek007]

Originally Posted by peste

post serial number S / N

its FVHWRA2FJ1WK

[mek007]

Hey guys am still in need of help if anyone has any ideas

[peste]

Originally Posted by mek007

Hey guys am still in need of help if anyone has any ideas

try..

[ACS-Repair]

Originally Posted by peste

try..

Can you tell me if this EFI is specific to the 2017 EMC 3178 or is this for any 820-00165 board? I have an EFI ROM file from a 2015 board and it doesn't start up on my 2017 board. I have heard that the EFI for this model is specific to the 2017. Can someone confirm this either way?

[peste]

Originally Posted by ACS-Repair

Can you tell me if this EFI is specific to the 2017 EMC 3178 or is this for any 820-00165 board? I have an EFI ROM file from a 2015 board and it doesn't start up on my 2017 board. I have heard that the EFI for this model is specific to the 2017. Can someone confirm this either way?

if you have the same board, change the Serial Number S / N, and clean the region me, and do the test, don't forget to do before writing on the chip, a backup of the original bios of the laptop.

[ssio187dd]

Hi,
Macbook Air 2017 A1466
EMC 3178
820-00165-A
SN: FVFVV003J1WM
Locked efi


please help me need urgent file to unlock and flash the efi chip

[Ivandj983]

Hello fiend, please help me need urgent file to unlock and flash the efi chip

[[email protected]]

Originally Posted by peste

try..

thanks this file works for 2017 macbook how many files i tried but slow on mac os set up only this one is working big thanks

[ssio187dd]

Her is the link to download the Original backup

https://drive.google.com/file/d/10P4...w?usp=drivesdk