Dolphin Pre-programmed EFI Firmware Chip For MacBook Air A1369 A1466 A1370 A1465

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.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.Want to save your original serial number?send us the serial number from the bottom cover via ebay message,no additional charge!without that,there would be no serial number in the system after install the chip.If you have any questions, please feel free to ask us.