Pre-Programmed EFI BIOS Firmware Chip for iMac A1418, board : 820-00629-A, unlock EFI firmware password

🔹 Product Description

🔹 Quick Summary

Looking for a premium, pre-programmed replacement EFI chip for your iMac A1418 Mid-2017, board number : 820-00629-A ? Our ready-to-install SPI Flash EFI BIOS chip is the ultimate hardware-level fix for motherboard repair, firmware recovery, and permanent password removal.

Restore your iMac back to full working condition—even in critical cases of system lockouts, corrupted firmware, or "black screen of death" issues caused by failed OS updates.

• Ready-to-Use: Pre-programmed with verified clean-ME firmware (no external EEPROM programmer required).
• Professional Grade: Specifically compiled for professional Apple technicians and board-level repair shops.
• Permanent Fix: A hardware-level replacement that permanently bypasses the lock, unlike temporary software workarounds.

💡 EFI Password Reset: By replacing the physical EFI chip with our pre-programmed clean firmware, you can successfully remove, reset, or bypass forgotten Apple EFI supervisor passwords permanently.

⚠️ Note: This is a brand-new physical hardware chip (SOIC8 / WSON8 package). This is NOT a software bypass or digital download code.

🔹 Compatibility Notice

Compatible Model: Apple iMac A1418, Mid-2017, board number : 820-00629-A

Due to the highly technical nature of Apple board-level repairs, compatibility must be confirmed prior to purchase. If you are unsure, please contact BIOS CHIP STORE with clear photos of your motherboard or your Mac's Serial Number.

*Refunds or returns are not accepted for incorrect diagnosis, logic board mismatches, or improper soldering installation.

🔹 Core Features & SEO Benefits

• Brand-New SPI Flash ROM: Industrial-grade, high-reliability chip for stable long-term macOS performance.
• Pre-Programmed Clean-ME: Flashed with clean ME region firmware and 100% verified before shipping.
• Fixes Firmware Corruption: Solves power-on but no display, loop booting, and bricked EFI states.
• EFI Password Bypass: Factory-clean firmware structure permanently removes administrative firmware locks.
• Plug & Solder: No EEPROM programmers or test clips needed. Just solder the chip and boot up your iMac.

🔹 Apple EFI Password Unlock Support

Locked out of your iMac due to a forgotten EFI PIN or supervisor password?

On Intel-based Macs, security locks are stored directly within the physical SPI flash EFI firmware chip. Replacing the original locked chip with our pre-programmed clean EFI chip permanently removes the firmware-level lock. This allows you to reinstall macOS and access the boot menu freely.

Ideal for:

• Forgotten EFI administrative/supervisor passwords.
• Unlocking second-hand, off-lease, or recycled corporate iMacs.
• IT asset refurbishment, computer recycling, and board-level repair shops.

⚠️ Note: This hardware modification permanently bypasses the BIOS/EFI lock screen. It does not unlock iCloud (Activation Lock) or FileVault OS-level software encryption.

🔹 Common Repair Scenarios

This replacement EFI chip is highly effective in resolving:

• iMac powers on (fans spin, chime may or may not play) but screen remains completely black.
• System stuck in a continuous boot-loop.
• iMac bricked after a failed macOS or security update.
• Padlock screen appears at boot, preventing access to the Startup Manager (Boot menu).
• Forgotten EFI password preventing OS reinstallation or changing the boot drive.
• ⚠️ Note: This chip will NOT repair physical hardware failures such as bad LED backlights, shorted capacitors, faulty power supply boards, or GPU/CPU issues.

🔹 Technical Specifications

🔹 Installation Requirements

This product is strictly intended for professional repair technicians. Replacing SMD (Surface-Mount Device) chips on Apple logic boards requires specialized micro-soldering experience.

• Logic board removal and ESD-safe handling.
• Accurate chip identification and pin-1 orientation mapping.
• Micro-soldering experience using hot air rework stations or fine-tip soldering irons.

⚠️ WARNING: Improper soldering temperature or incorrect alignment can permanently damage the motherboard trace pads or nearby components.

🔹 System Information Notice (DMI & Serial Number)

Because this chip is flashed with factory-clean, non-personalized firmware with a Clean ME region, system-specific information such as your logic board's Serial Number (S/N) may be blank or generic after installation. If necessary, these details can be manually reprogrammed using official Apple service utility tools. Note: This does not affect normal boot capability, macOS updates, or hardware functionality.

Please tell us your serial number in advance. We can help you program the EFI CHIP with your serial number in advance.

🔹 Before Purchase Checklist

To ensure a 100% successful repair, please verify the following:

1. Confirm your iMac is indeed the correct model.
2. Verify the logic board model number ( printed on the PCB, like 820-XXXXX-X )
3. Take note of the original chip package (SOIC8 8-pin or WSON8 flat-pad).
4. Confirm that the motherboard's issue is indeed firmware-related and not a hardware fault.

📧 Need verification? Send us a clear, high-resolution photo of your logic board's EFI chip area, and our tech support team will confirm the perfect fit.

🔹 FAQ (Frequently Asked Questions)

🔹 Legal Notice

This product is sold and intended strictly for legitimate hardware repairs, maintenance, and IT refurbishment. EFI password removal and bypass functions must only be performed on authorized devices legally owned by the buyer or client. We do not support or facilitate unauthorized access to stolen or protected hardware assets.

🔹 Shipping & Support

• 🚀 Fast Worldwide Shipping: Fully tracked registered airmail delivery.
• 📦 ESD-Safe Protection: Shipped in anti-static protective packaging to ensure zero electrical damage.
• 🔍 Quality Controlled: Every individual chip is verified and post-programming tested.
• 💼 Bulk Orders: Wholesale options and bulk discounts are available for repair shops. Contact us directly.

Browse all replacement BIOS chips at BIOS CHIP STORE

🔹 Learn More About BIOS Repair & Chip Diagnostics

• What Is a BIOS Chip and What Does It Do?
• Understanding How SPI Flash ROM Works
• Introduction to Modern BIOS Firmware Architecture

Back to the BIOS Knowledge Hub