How To Unlock MacBook By Removing EFI Password?

REWA 11/17/2017

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. Check it out by yourself now!


How To Unlock MacBook By Removing EFI Password


Unlock MacBook By Removing EFI Password


The MacBook Pro requires a PIN to log in. As the MacBook powered up with Option key, Another LOCK appears. Both the two locks were not configured by users.


How To Unlock MacBook By Removing EFI Password


Remove the lower case and detach the battery. Remove the SSD and then confirm the board number of logic board: 820-3476-A so that we can match with the specific firmware.


How To Unlock MacBook By Removing EFI Password


EFI Chip Free Removal Unlock Tool (30 pins)



How To Unlock MacBook By Removing EFI Password


Locate the power supply pin of EFI chip. Solder the power supply wire.


How To Unlock MacBook By Removing EFI Password


Locate the pin 1 of SAM socket on the logic board. Then, buckle the unlock tool correspondingly.


How To Unlock MacBook By Removing EFI Password


Connect with the programmer and then supply power to EFI chip at 3.3V from DC Power Supply.


How To Unlock MacBook By Removing EFI Password


Connect the unlock tool with PC. The program starts to identify the chip model automatically. Read and save a copy of the original firmware first.


How To Unlock MacBook By Removing EFI Password


After that, load a specific firmware. Erase raw data, and write the specific firmware.


How To Unlock MacBook By Removing EFI Password


Once finished, detach the unlock tool and power supply wire. Install the SSD and buckle the battery. Get the lower case assembled.


How To Unlock MacBook By Removing EFI Password


Press "Option Key". There is no firmware lock on the interface.


How To Unlock MacBook By Removing EFI Password


Press "Option+Command+R+P+Power Button", erase NVRAM and power up. User login interface appears this time.


How To Unlock MacBook By Removing EFI Password


MacBook unlocked successfully. Since all data remain the same after unlocking, there is no need for OS reinstallation.


Notice


The unlock tool works with MacBook Pro 2012-2014;


MacBook Air 2010-2014;


REWA LAB works with 2014 MacBook Pro unlocking this time;


All data remain the same after unlocking;


EFI Chip non - removal solution (with a matching set of Free Removal Unlock Tool).


For more details on Macbook Unlock Repair guide, please go to REWA YouTube channel.




Tools Used


Maintenance Platform

Soldering Iron

Screwdrivers

Plastic Pry Bar

EFI Chip Free Removal Unlock Tool

DC Regulated Power Supply


REWA Screen Repair:


Fix cracked iPhone 7 screen,

Samsung Galaxy S7 edge glass replacement,

iPhone 7 touch screen not working,

iPad Air Touch Screen Partially Unresponsive Repair,

iPhone X Screen Refurbishing – Glass Only Repair,

iPhone 8 Broken LCD Screen Refurbishing;


REWA Motherboard Repair:


iPhone 6 won’t turn on,

How to fix water damaged iPhone 6,

MacBook air memory upgrade.

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REWA is a world leading electronics repair business solutions provider who was founded in 2008 in HongKong. We are committed to delivering one-stop services covering Sourcing Solution, Technical Support Solution as well as Recycle & Resell Solution.

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