BIOS

vinafix.com_BIOS A1286 820-3330-B_4MB.rar

BIOS / EC firmware for Apple A1286 · board 820-3330-B · 1.8 MB · shared in 1 Telegram post.

TXTAbout vinafix.com BIOS A1286 820-3330-B 4MB BIOS / EC firmware

vinafix.com BIOS A1286 820-3330-B 4MB is an Apple A1286 BIOS / EC firmware dump for board 820-3330-B (4 MB). It is packed in a RAR archive of 1.8 MB. It was first posted on 1 Apr 2018 and is available in 1 Telegram channel.

Write it with an SPI programmer such as CH341A, RT809H or XGecu T48 to revive a board after a failed BIOS update, fix a corrupted Intel ME region or remove a forgotten BIOS password. Read and save the original chip first, and check that your board is 820-3330-B.

For the same board you can also find a boardview and a schematic — see all 820-3330-B files.

Type
BIOS & EC
Format
.rar · RAR archive
Size
1.8 MB
Brand
Apple
Board number
820-3330-B
Model
A1286
Flash size
4 MB
First posted
1 Apr 2018
Last posted
1 Apr 2018
Sources
1

Tags

J1Download 820-3330-B BIOS / EC firmware from Telegram

R1How to download vinafix.com BIOS A1286 820-3330-B 4MB

  1. Press Download in Telegram. The post opens in the Telegram app, or on a t.me preview page — choose “View in Telegram”.
  2. You don’t need to join the channel. Tap the file vinafix.com_BIOS A1286 820-3330-B_4MB.rar to download it.
  3. Open it with 7-Zip (free) or WinRAR.

If a post was deleted, try another source above or search for 820-3330-B. Step-by-step help: downloading from Telegram.

Back up the original chip twice before writing this dump, and check that the board number and chip size match. See how to flash a BIOS chip.

.RARWhat is a .rar file and how to open it?

RAR archive. A compressed folder. It can hold a schematic, a boardview, a BIOS dump or all three.

Open with:

  • 7-Zip (free)
  • WinRAR

Tip: If the archive asks for a password, look for it in the Telegram post text.