(347) 552-2258
[email protected]
-
For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.Subscribe Now
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an alternative browser.
You should upgrade or use an alternative browser.
820-3437
- Thread starter MDY
- Start date
I am not sure. First time I met this problem. When power appear that it is disabled and I have to try later in 60 minutes. I tested with another usb hdd and appear padlock on screen so I think that flash bios will be ok.
When I put "efi lock" in google I see image with pin required. But in my case no pin is required.
When I put "efi lock" in google I see image with pin required. But in my case no pin is required.
Last edited:
Yes it is locked. https://ghostlyhaks.com/blog/blog/hacking/18-apple-efi-bypass
Read the chip with any reader and just find the $SVS tag and follow those directions. Always make sure to keep a backup of the original file!
Read the chip with any reader and just find the $SVS tag and follow those directions. Always make sure to keep a backup of the original file!
Ok, I removed the chip again when soldering on adapter board I damaged the chip (1 pin missing). I found another bios chip from another 3437 board and put fixed dump and board doesnot power anymore. I tried also backup dump and doesnot power anymore. Carrefuly checked all resistors arround and all is ok. Any idea what could be goes wrong? This board should work with another bios chip, right? I tried one MX and one Winbond chip. Original is Winbond. I checked clock chip as it is near and I have 32K for PCH. All resistors arround compared with another board are on their place. Bios chip has 3V and I have green light. Something meesing with bios could block the SMC?