Tag: unlock macbook

In previous blog, we have introduced how to unlock MacBook by removing EFI passwords. This time we come with a new method to unlock MacBook 2015-2017. With the help of EFI Chip Free Removal Unlock Tool, you do not need to remove the chips, and the EFI password is cleared with HEX editor. Let’s find out how to make your MacBook repair easier.

The MacBook Pro requires PIN to log in. Give the PIN a try and PIN failed.

Power off and remove the lower case. Detach IPG trackpad keyboard flex and the battery.

Locate the SAM Socket and EFI chip. Then confirm the board number of logic board: 820-00045-10.

EFI Chip Free Removal Unlock Tool (12 pins)

NoteThe unlock tool works with MacBook Pro 2015-2017; MacBook Air 2015-2017; MacBook 2015-2016

Locate the power supply pin of EFI chip on the repair drawing and locate the pin 1 of SAM socket on the logic board.

Buckle the unlock tool correspondingly. Then solder a power supply wire to the power supply pin of EFI chip.

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

Connect the unlock tool with the computer and read EFI chip data.

Save as a bin file. Then edit the bin file in HEX editor. Locate the specific field. Replace characters in the field to clear password. Once done, save the bin file.

Open the free password bin file and “Write”. Only the original EFI data works with the clearance of data password.

Once finished, detach the unlock tool and power supply wire. Then buckle the battery and get the lower case assembled.

Plug in MacBook AC Adapter and press “Option Key+Power Button” to power up. There is no firmware lock on the interface.

Yet the PIN lock still exists. Power off and then press “Option+Command+R+P+Power Button” to erase NVRAM and power up.

MacBook unlocked successfully.All data remain the same after unlocking, no need for OS reinstallation

For more details on Unlock MacBook 2015-2017 Repair guide, please go to REWA YouTube channel.

Necessary Parts And Tools

• Maintenance Platform
• Soldering Iron
• Screwdrivers
• Plastic Pry Bar
• EFI Chip Free Removal Unlock Tool – Type 2

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!

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.

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.

EFI Chip Free Removal Unlock Tool (30 pins)

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

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

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

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.

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

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

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

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

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.

Necessary Parts and Tools

• Maintenance Platform
• Soldering Iron
• Screwdrivers
• Plastic Pry Bar
• EFI Chip Free Removal Unlock Tool
• DC Regulated Power Supply