Seller: macbiosunlock ✉️ (178) 100%, Location: California, US, Ships to: US & many other countries, Item: 392326024077 Bios EFI Firmware Chip for iMac 27" A1419 Late 2013 i5, i7 EMC 2639, 820-3478. EFI Firmware Chip for Apple iMac 27" A1419 Late 2013 EMC 2639, 820-3478. Order MF125LL/A Model A1419 (EMC 2639). Mac Bios Unlock. Fix Corrupted Firmware caused during updates. Remove the EFI iCloud Password Lock. Mac Bios Unlock EFI Firmware Chip for Apple iMac 27" A1419 Late 2013 EMC 2639, 820-3478 DESCRIPTION NEW Pre-Programmed Bios EFI Firmware Chip for iMac 27" A1419 Late 2013 i5, i7 EMC 2639, Logic board: 820-3478 Fix Corrupted Firmware caused during updates Remove the EFI iCloud Password Lock. (4 pin, 6 pin) Disabled Mac, Locked Mac Remove MDM (Remote Management), DEP (Do not use your original S/N if your Mac has MDM Supported Models: (Wrong model will NOT work) iMac 27-Inch "Core i5" 3.2 (Late 2013) 3.2 GHz Core i5 (I5-4570) Intro. September 24, 2013 Disc. October 13, 2015 Order ME088LL/A Model A1419 (EMC 2639) Family Late 2013 ID iMac14,2 iMac 27-Inch "Core i5" 3.4 (Late 2013) 3.4 GHz Core i5 (I5-4670) Intro. September 24, 2013 Disc. May 19, 2015 Order ME089LL/A Model A1419 (EMC 2639) Family Late 2013 ID iMac14,2 iMac 27-Inch "Core i7" 3.5 (Late 2013) 3.5 GHz Core i7 (I7-4771) Intro. September 24, 2013 Disc. May 19, 2015 Order MF125LL/A Model A1419 (EMC 2639) Family Late 2013 ID iMac14,2 Please note this chip will not remove the Operating System password or Hard Drive password It is highly recommended to format and reinstall a clean version of MacOS after installing the new chip. For professionals. You will need to use soldering tools to remove your old chip and solder the new one. Add your serial number at checkout if you like to keep your original serial number or just message me. 100% Permanent and working chip with Clean ME Region You can find the EMC number by visiting this website everymac "dot" com / ultimate-mac-lookup Please contact me if you need help or have any questions RETURN POLICY 30 days return or exchange if there is any problem with the chip. Please contact me before opening case. I will be happy to help you. SHIPPING We will ship the chip within 24 hours via USPS First Class 3-5 days (Free) International Global Shipping: 7- 21 days FEEDBACK Please take a moment and leave us a positive feedback. If there is a problem with your order please contact me before leaving negative feedback. 😊 Condition: New, Brand: Macronix MXIC (original), Compatible Brand: For Apple, Type: EFI chip