![]() REWA LAB works with 2014 MacBook Pro unlocking this time Īll data remain the same after unlocking ĮFI Chip non - removal solution (with a matching set of Free Removal Unlock Tool).įor more details on Macbook Unlock Repair guide, please go to REWA YouTube channel. The unlock tool works with MacBook Pro 2012-2014 Since all data remain the same after unlocking, there is no need for OS reinstallation. This update includes improvements delivered in MacBook Pro EFI Firmware Update 2. Press "Option+Command+R+P+Power Button", erase NVRAM and power up. It includes the following useful tools to help you in this process: -dsdtextract Extracts DSDT from BIOS. It is based on UEFITool (awesome application) by CodeRush. The EFI Card fixes corrupted EFI BIOS firmware issues such as corruptions or boot loops caused by Clover, similar EFI bootloaders or Catalina update. The question is what are the last 4 bytes, since they appear to be. As you know the first 4 of the last 8 bytes are the crc32 value of the firmware volume contents. I found out that the issue is related to the last 4 bytes of the ZeroVector. The crc32 and crc16 are all ok and the modification (replacement or reinjection is also ok). (If you can handle some terminal commands that is). Modifying Apples EFI dumps will brick the target Macs. There is no firmware lock on the interface. This program was created to make the process of creating an Ozmosis patched BIOS easier. Once finished, detach the unlock tool and power supply wire. Erase raw data, and write the specific firmware. The program starts to identify the chip model automatically. Read and save a copy of the original firmware first.Īfter that, load a specific firmware. Then, buckle the unlock tool correspondingly.Ĭonnect with the programmer and then supply power to EFI chip at 3.3V from DC Power Supply.Ĭonnect the unlock tool with PC. Locate the pin 1 of SAM socket on the logic board. Remove the SSD and then confirm the board number of logic board: 820-3476-A so that we can match with the specific firmware.ĮFI Chip Free Removal Unlock Tool (30 pins) Remove the lower case and detach the battery. It supports full BIOS image parsing including the flash descriptor or any binary files containing UEFI volumes it is compatible with multiple BIOS image types. UEFITool allows the modification, parsing, and extraction of UEFI firmware images. Both the two locks were not configured by users. UEFITool allows the modification, parsing, and extraction of UEFI firmware images. When computers were much simpler, all that was needed was basic input and output, in the BIOS. As the MacBook powered up with Option key, Another LOCK appears. The purpose of the EFI phase and boot.efi is to augment the basic facilities provided by BootROM to the point where the macOS kernel can be loaded with its extensions, largely in terms of providing access to the Mac’s hardware through a device tree. The MacBook Pro requires a PIN to log in. 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. Our previous EFI Chip Solution For MacBook Unlock Repair has introduced an EFI chip solution regarding the unlock MacBook issue.
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