Can someone help me unlock this bios?
Model A1708 EMC 3164
Serial no. FVFXM04NHV2J
the board is 820-00840-A
Thanks!...
DAN LI
New Member
Last Activity: 11-20-2024, 11:19 PM
Joined: 02-28-2024
Location: SINGAPORE
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This solved my problem, thank you man. I connected the trackpad and battery both are working fine too...Leave a comment:
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the logic board number is 820-00840
okay before I test, but the macbook is able to boot up multiple times and show me efi lock before i use the ds809. how did you know its defective? what the telltale sign?Leave a comment:
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After disconnecting the battery and trackpad, the fan can start up but still no display and caps no power...Leave a comment:
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I take a video of the meter,
The fan does spin a while when I first plug the charger in, but stops a while later.
The logic board doesnt seems to booted as the fan stop spinning and no light on caps key...Leave a comment:
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The macbook was able to be turn on without any issue before i started the EFI unlocked, i used the same set of adapter.
I didnt change anything like the memory chip or battery.
Here is the attached pic of the USB Type C Meter
Sorry I jyst started my journey unlocking and repairing macbook so I am unsure what are the steps you mention.
How do I mesaure the voltage to ground of [B]ppbus_g3h[/B] ?
Thanks for replying
This is the 3rd A1708 i brick this month using EFI unlockThe macbook was able to be turn on without...Leave a comment:
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A1708 EFI UNLOCK, MACHINE UNBALE TO POWER ON
I brought a DS-809E to unlock some A1708 that we have aquired.
After following some of the steps found in youtube, I was able to extract the .bin file and using a hex editor to remove the password.
But after rewriting the .bin file back, the macbook wasnt able to switch on, no fan movement. I even try rewriting the original .bin file back, but the machine remaind dead
What did I do wrong? Can someone help me?
I have attached the original bin file...
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