BIOS

A1297_820-2390-A._4MATIC.zip

BIOS / EC firmware for Apple A1297 / 4MATIC · board 820-2390-A · 1.4 MB · shared in 1 Telegram post.

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TXTAbout A1297 820-2390-A. 4MATIC BIOS / EC firmware

A1297 820-2390-A. 4MATIC is an Apple A1297 / 4MATIC BIOS / EC firmware dump for board 820-2390-A. It is packed in a ZIP archive of 1.4 MB. It was first posted on 20 May 2022 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 820-2390-A.

Type
BIOS & EC
Format
.zip · ZIP archive
Size
1.4 MB
Brand
Apple
Board number
820-2390-A
Model
A1297, 4MATIC
First posted
20 May 2022
Last posted
20 May 2022
Sources
1

Tags

820-2390-A BIOS820-2390-A BIOS binApple 820-2390-AApple A1297 BIOSApple A1297 motherboardApple A1297 BIOS dumpBIOS bin fileSPI flash dumpApple laptop BIOS binBIOS free download

J1Download 820-2390-A BIOS / EC firmware from Telegram

R1How to download A1297 820-2390-A. 4MATIC

  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 A1297_820-2390-A._4MATIC.zip to download it.
  3. Open it with Built into Windows and macOS or 7-Zip (free).

If a post was deleted, try another source above or search for 820-2390-A. 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.

.ZIPWhat is a .zip file and how to open it?

ZIP archive. A compressed folder with one or more files inside.

Open with:

  • Built into Windows and macOS
  • 7-Zip (free)