Your Mac is not asking for PIN lock code now. However, your iCloud Activation Lock is still present. You should log in with Apple ID and password used to enable Find My and Activation Lock. Otherwise, you must order the iRemove Activation Lock service to bypass Activation Lock screen. In this case the symptoms would be a four digit pin lock when the OS loads. When you try to do a re-install you are met with a lock screen shown in EX-1. This is the result of the Mac being most definitely locked from the cloud. Create a Pin Code then click enable, then save. Go back to Firmware Password Utility enter current pin code then disable. Reboot Apple Computer 10. No PIN CODE will be present 11. Install MAC OS X as usual. The Show bypass code command reveals the unique activation lock bypass code received by Cisco Meraki from Apple. If the device has already been factory reset and reactivated, at the Activate iPhone/iPad screen, administrators can manually enter the bypass code (without dashes) in the password field and leave the Apple ID field blank. Our previous EFI Chip Solution For MacBook Unlock Repair has introduced an EFI chip solution regarding the unlock MacBook issue. We have made a guide: how to bypass icloud lock on iPhone 6 no later, however, if you are not good at micro soldering, never mind, this time REWA come up with a new unlock method with EFI password removing regarding the unlock MacBook issue.
Guide: Unlock MacBook Air Firmware-lock and PIN-lock (A1466） Download a vpn for mac free.
System Lock Pin Code Mac
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. 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?
System Lock Pin Code Mac
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. 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?
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.
Mac System Lock Pin Code
News for Thursday 07 March, 2019
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