820-3115-b.100% ok.bin.BIN

TXTAbout 820-3115-B.100% ok.bin BIOS / EC firmware

820-3115-B.100% ok.bin is an Apple BIOS / EC firmware dump for board 820-3115-B — tested. The BIN file is 8.0 MB. It was first posted on 18 Jan 2025 and is available in 2 Telegram channels.

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 820-3115-B.

For the same board you can also find a boardview, a schematic and board packs — see all 820-3115-B files.

J1Download 820-3115-B BIOS / EC firmware from Telegram

R1How to download 820-3115-B.100% ok.bin

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 820-3115-b.100% ok.bin.BIN to download it.
3. Open it with Write it with a programmer: CH341A, RT809H, XGecu T48 and similar or Inspect it with a hex editor (HxD).

If a post was deleted, try another source above or search for 820-3115-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.

.BINWhat is a .bin file and how to open it?