BIOS

A1311 K74 051-8337 820-2784 TESTED BIOS

BIOS / EC firmware for Apple A1311 / K74 · board 820-2784 · 4.0 MB · shared in 1 Telegram post.

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TXTAbout A1311 K74 051-8337 820-2784 TESTED BIOS BIOS / EC firmware

A1311 K74 051-8337 820-2784 TESTED BIOS is an Apple A1311 / K74 BIOS / EC firmware dump for board 820-2784 — tested. The file file is 4.0 MB. It was first posted on 15 Dec 2024 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 820-2784.

For the same board you can also find a schematic — see all 820-2784 files.

Type
BIOS & EC
Format
—
Size
4.0 MB
Brand
Apple
Board number
820-2784
Model
A1311, K74
Notes
tested
First posted
15 Dec 2024
Last posted
15 Dec 2024
Sources
1

Tags

820-2784 BIOS820-2784 BIOS binApple 820-2784Apple A1311 BIOSApple A1311 motherboardApple A1311 BIOS dumpBIOS bin fileSPI flash dumpApple laptop BIOS binBIOS free download

J1Download 820-2784 BIOS / EC firmware from Telegram

R1How to download A1311 K74 051-8337 820-2784 TESTED BIOS

  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 A1311 K74 051-8337 820-2784 TESTED BIOS to download it.
  3. Open it with the matching program — see our format guide.

If a post was deleted, try another source above or search for 820-2784. 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.