A community for the repair bench. Since 2022.LAPTOP + DESKTOP BOARD REPAIR
Advertisement
Service · EC / KBC unlock Unlock MEC17xx, Nuvoton & ITE with a BIOS patch
  • BIOS patch method
  • Private check
  • For verified owners & repair technicians
Chat on WhatsApp +92 328 0493988 · Replies on WhatsApp
Service · Dell BIOS password Dell master BIOS codes from your System Number
  • Suffixes 8FC8 CF1B 3FE2 9ABE 1B58 E7A8
  • Private check
  • For verified owners & repair technicians
Chat on WhatsApp +92 328 0493988 · Replies on WhatsApp

APPLE iMac A1418 820-00431-A 820-00432-A

Laptops and Desktop Bios, Schematic and Boardview Files And Repairing Discussion
Search files by board code
Browse all 33,248 files →
iMac A1418 820-00431-A
820-00431-02, 820-00432-A
661-02985
Bios
820-00431 Schematic
820-00431 Boardview
 
About this board

iMac A1418 — motherboard 820-00431-A / 820-00432-A.

Files usually needed for this board
  • EFI firmware (full SPI ROM dump)
  • Schematic (PDF)
  • Boardview (.brd / .bdv / .cad)

Typical reasons to reflash: no boot or no chime after a firmware update, a firmware (EFI) password lock, or a corrupted ROM after liquid damage.

Back up the original dump first — it contains machine-specific data (serial, UUID, MAC, ME), and you will want it if anything goes wrong.

If you have a working file for this board, please share it below. More files: search 820-00431-A in File Finder.

Attachments

820-00431-Boardview .brd
558.2 KB · Views: 6
820-00431 Schematic.pdf
5.1 MB · Views: 7
Click to expand...
You must log in or register to reply here.

Similar threads

admin
  • Article Article
BIOS Apple iMac A1418 820-00143
Replies
0
Views
117
admin
admin
admin
  • Article Article
BIOS Apple iMac 21.5 A1418 820-4668
Replies
0
Views
116
admin
admin
admin
  • Article Article
BIOS Apple iMac 820-01237
Replies
0
Views
122
admin
admin
admin
  • Article Article
BIOS Apple iMac A1419 820-3478
Replies
0
Views
135
admin
admin
admin
  • Article Article
BIOS Apple iMac A1224 820-2223
Replies
0
Views
126
admin
admin

Trending content

Make PKBIOSFIX part of your bench.

Professional resources. Shared experience. A stronger repair community.

Explore PRO
Back
Top