Seller: advancednetwork ✉️ (1,656) 100%, Location: California, US, Ships to: US & many other countries, Item: 202725857919 Bios EFI Firmware Chip for Apple MacBook Pro 15" Late 2013 A1398 EMC 2674. EFI Firmware Chip for Apple MacBook Pro 15" A1398 Late 2013, 820-3662, EMC 2674. Only for EMC 2674. Not sure about EMC number?. Fix Corrupted Firmware Caused During Updates. We also have solderless EFI Chip Card. AdvancedNetwork EFI Firmware Chip for Apple MacBook Pro 15" A1398 Late 2013, 820-3662, EMC 2674 DESCRIPTION NEW Pre-Programmed Bios EFI Firmware Chip for MacBook Pro 15" A1398 Late 2013 EMC 2674 or Logic board: 820-3662 This chip can be used for: Solve EFI Password-Lock, iCloud, 4 pin or 6 pin lock, Alphanumeric PadLock Fix Corrupted Firmware Caused During Updates Disabled Mac MDM Mobile Device Management (Remote Management) DEP Device Enrollment Profile (It will NOT remove the operating system password or Hard Drive password) The chip needs to be soldered on the motherboard. Advanced soldering skills are required to replace the chip. The chip will come with a serial number or we can program your original S/N into the chip. Note: Do not use your original S/N if your Mac has MDM or DEP profile. 100% Permanent fix. Only for EMC 2674 Not sure about EMC number? You can find the EMC number by visiting this website. everymac "dot" com / ultimate-mac-lookup I can help you find the correct chip for your motherboard if you need help. Please contact me if you have any questions RETURN POLICY We offer 30 days returns if there is any problem with the chip. Please contact us before opening case and we will help you to solve the problem. SHIPPING All orders are shipped within 24/ 48 hours via USPS First Class. (Free) Priority service: $4.99 FEEDBACK Feedback is very important to us. We will leave you 5 star positive feedback. I will appreciate it if you can do the same 😊 Check out my other items! No soldering skills? We also have solderless EFI Chip Card. No soldering needed. Unlock EFI, Remove MDM. Click on the image below. Condition: New, Brand: Macronix MXIC (original), Compatible Brand: For Apple, Type: Firmware BIOS Chip, Logic board: 820-3662, EMC: 2674, Package: SOP-8