Hello, can you check step by step all the data on this list?
Are they correct? in their places? Thank you.

Serial Number – C17K62FEDNCR
MLB (Main Logic Board Serial) – unique motherboard identifier C02305600DAFF4KAQ
Board ID (or System ID) – iMac13,1 device model identifier (corresponds to A1418).
AirPort ID (Wi-Fi MAC address) 8C:2D:AA:60:64:65
Bluetooth ID: 8C:2D:AA:60:64:66 Usually matches Wi-Fi MAC, but with a modified last byte (since Wi-Fi/BT is one module).
Ethernet ID (MAC address of the wired adapter): 10 : D D :B1:A5:4B:09
...

1. [LIST=1]
2. [B]Serial Number – C17K62FEDNCR[/B]
3. [B]MLB (Main Logic Board Serial) – unique motherboard identifier C02305600DAFF4KAQ[/B]
4. [B]Board ID (or System ID) – iMac13,1 device model identifier (corresponds to A1418).[/B]
5. [B]AirPort ID (Wi-Fi MAC address) 8C:2D:AA:60:64:65[/B]
6. [B]Bluetooth ID: 8C:2D:AA:60:64:66 Usually matches Wi-Fi MAC, but with a modified last byte (since Wi-Fi/BT is one module).[/B]
7. [B]Ethernet ID (MAC address of the wired adapter): 10 : D D :B1:A5:4B:09[/B]
8. [B]If the addresses have reset: Manually enter them into the firmware dump using a Hex editor (look

...

1. [LIST=1]
2. [B]Serial Number – C17K62FEDNCR[/B]
3. [B]MLB (Main Logic Board Serial) – unique motherboard identifier C02305600DAFF4KAQ[/B]
4. [B]Board ID (or System ID) – iMac13,1 device model identifier (corresponds to A1418).[/B]
5. [B]AirPort ID (Wi-Fi MAC address) 8C:2D:AA:60:64:65[/B]
6. [B]Bluetooth ID: 8C:2D:AA:60:64:66 Usually matches Wi-Fi MAC, but with a modified last byte (since Wi-Fi/BT is one module).[/B]
7. [B]Ethernet ID (MAC address of the wired adapter): 10 : D D :B1:A5:4B:09[/B]
8. [B]If the addresses have reset: Manually enter them into the firmware dump using a Hex editor (look

...

Hello everyone, I ask for help and advice - I have data for the firmware - but I don't have the firmware itself. Is it possible to enter this data into a clean firmware?


Apple iMac EFI/BIOS for iMac 21.5" Late 2012 (A1418, EMC 2544) MD093RU/A

Serial Number – C17K62FEDNCR

MLB (Main Logic Board Serial) – unique motherboard identifier - I'll find out later - do you also need this number?

Board ID (or System ID) – iMac13,1 device model identifier (corresponds to A1418).

AirPort ID (Wi-Fi MAC address) 8C:2D:AA:60:64:65...

Hey everyone,

I'm a beginner technician diving deep into hardware repair, especially Macs and vintage PCs. My current obsession is figuring out the quirks of EFI/BIOS flashing—specifically for an **iMac 21.5" Late 2012 (A1418)** I'm reviving. Still learning the ropes (and making plenty of mistakes along the way), but every fixed board feels like a tiny victory.

My journey started with tinkering on old laptops and replacing caps, but now I'm venturing into schematics, soldering, and firmware hacks. Big thanks to communities like this for sharing knowledge—without...

Hello everyone, I'm a newbie. Looking for help flashing EFI/BIOS for iMac 21.5" Late 2012 (A1418, EMC 2544),