Apple_Macbook_Pro_A1278_Mid_2012_820_3115_B,_820_3115,_820_3115.zip

TXTAbout Apple Macbook Pro A1278 Mid 2012 820-3115 B, 820 3115, 820 3115 BIOS / EC firmware

Apple Macbook Pro A1278 Mid 2012 820-3115 B, 820 3115, 820 3115 is an Apple A1278 BIOS / EC firmware dump for board 820-3115. It is packed in a ZIP archive of 146 KB. It was first posted on 8 Jun 2025 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 820-3115.

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

J1Download 820-3115 BIOS / EC firmware from Telegram

R1How to download Apple Macbook Pro A1278 Mid 2012 820-3115 B, 820 3115, 820 3115

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 Apple_Macbook_Pro_A1278_Mid_2012_820_3115_B,_820_3115,_820_3115.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 820-3115. 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?