Guide: Unlock MacBook Air Firmware-lock and PIN-lock (A1466)
A MacBook Air is locked by pin code and firmware, the model is A1466, the motherboard model is 820-00165-A, which is release in 2015. Atom text editor for mac. Press the MacBook power button, after entering the system, it shows PIN code lock, press the 'Option' button, it shows firmware lock. How to unlock PIN code lock and firmware lock on this MacBook Air?
MacBook Pro (13-inch Mid 2010), Mac OS X (10.7.3) View 3 Replies View Related MacBook Pro:: Cannot Get Past 'Enter Your System Lock PIN Code To Unlock This MAC' Feb 12, 2012. Can not get past 'Enter your system lock PIN code to unlock this MAC' I never had a PIN code? Info: MacBook Pro. View 8 Replies View Related OS X V10.7 Lion:: How To.
- Dont have system lock pin code for MacBook Pro 2010 My boyfried gave me gift of MacBook Pro (2010) laptop and from very first moment i ever powered up or turned it on all it will do or ask for is screen saying: 'Enter your system lock PIN code to unlock this Mac'.
- My MacBook Pro was purchased in mid-2012 and while it has a beautiful retina display, there’s no hole for the Kensington laptop lock. And of course there is no MacBook Pro docking station with a lock. I looked around and found Maclocks. When it came in the mail it was delivered in a not-so-exciting bag. Just a plastic bag.
As we know, there are several reasons for forming a PIN code:
- MacBook ID password stolen,the other side can remote login through our ID, directly set a password to the MacBook, which is called the PIN code,
- The user set a PIN code on the MacBook, but the user forgot it
- Accidentally set up a PIN code by manipulating the MacBook in a random manner
When the PIN code appears, restart the MacBook Air, and then hold down the ALT (Option) button before the screen lights up. When the MacBook screen is lit up, you will see the firmware lock interface.
The firmware lock we're talking about is actually the motherboard password (hardware password), it can't be removed by reinstalling the system. The password for the firmware lock is in the BIOS chip that exists on the MacBook motherboard. To unlock it, we need to read the data inside the BIOS chip, and then use proprietary software to remove the inside password, and then re-write information to the BIOS chip.
Because generally the BIOS chip is on the backside of the MacBook motherboard, it's complicated to remove it to read and write, so we can use special tool to read and write BIOS information without removing the MacBook motherboard.
Run ZXW Dongle, open the bit map to find the BIOS chip, find the connection point that's connected to the BIOS chip 8 Pin VCC, it should be under the motherboard.
Based on the MacBook bitmap, we know that the 1 Pin for R8133 is connected to the BIOS chip 8 Pin. Put MacBook motherboard under the microscope, connect the external BIOS chip to the power 3.3V to this resistor 1 Pin.
And then find SAM connector 1 Pin.
Find the SAM connector on the bitmap, the first pin for this connector is grounding, we can use digital multimeter to measure the first pin. Connect the corresponding interface, the other side connected to the programmer, external plus a BIOS chip power supply 3V-3.3V voltage.
The programmer will automatically recognize the BIOS chip model, and then read the information for the BIOS chip, and then save the original BIOS information. Open the special unlock software to remove the password for the BIOS information, and then re-write the information to the BIOS chip.
After successful writing, remove the unlock tool. Supply power to the MacBook Air, press the power button, and then hold on the Option, Command, R and P button at the button, which is to clean the BIOS. Release those buttons after the MacBook automatically restart.
Now the MacBook Air enters systems normally, press the Option button when booting, there is no lock, the MacBook Air has been unlocked.
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Some Apple computers have an extra layer of protection, a T2 security chip. A MacBook Pro and MacBook Air, released in 2018 and later, both come with the T2 chip. It secures the most critical macOS options, including Activation Lock, storage of encrypted data, secure boot, etc.
The T2 security chip controls the booting process and ensures that the MacBook Air (Pro) owner starts the system. And the owner can lock the computer in several ways.
Firstly, when a user enables the Find My Mac app on MacBook, this tool automatically sets on the Activation Lock screen when someone enters an incorrect Apple ID and password.
Secondly, users can enable EFI or the Extensible Firmware Interface password lock on MacBook with a T2 chip. This type of passcode protects a computer from untrusted firmware loads during startup.
Thirdly, users can turn on the iCloud System PIN Lock on MacBook. You enable this System Lock PIN when you turn on Find My and erase or report your MacBook Air (Pro) as lost through iCloud.
Laptop Locks For Macbook Pro
All these types of MacBook Lock will not go away if you do not know the correct password. Erasing, reactivating, restoring, recovering, rebooting the macOS device will not solve the problem. https://qqvh.over-blog.com/2021/02/elder-scrolls-5-skyrim-mac.html. Only the CheckM8 software can unlock MacBook Pro and Air. It is a distant, fast, reliable, and straightforward solution you can find in the market today.