What skill you need : 1. disassemble the laptop 2. find the chip(we will offer the picture showing the location of the BIOS EFI Firmware Chip and Logic board model number) 3. replace the chip(requires skill to desolder and solder by using a fine-tipped soldering iron or a hot-air station) 4. re-assemble the laptop.

• Before purchase, please make sure all the specifications of your MacBook Pro match the listing title.
• The pre-programmed EFI Firmware chip can be used to unlock the EFI password (firmware password) and iCloud password lock.It will NOT unlock the OS password.
• Want to save your original serial number?send us the serial number from the bottom cover to save your original serial number with no additional charge!without that,there would be no serial number in the system after install the chip.
• What skill you need : 1. disassemble the laptop; 2. find the chip(we will offer the picture showing the location of the BIOS EFI Firmware Chip and Logic board model number); 3. replace the chip(requires skill to desolder and solder by using a fine-tipped soldering iron or a hot-air station); 4. re-assemble the laptop.
• If you have any questions, please feel free to ask us.

Before purchase, please make sure all the specifications of your MacBook Pro match the listing title.Dolphin.dyl® BIOS