THINKPAD L540 MX25L6473E_12290-1M.zip

TXTAbout THINKPAD L540 MX25L6473E 12290-1M BIOS / EC firmware

THINKPAD L540 MX25L6473E 12290-1M is a Lenovo L540 / 12290-1M BIOS / EC firmware dump for board 12290-1 for the MX25L6473E SPI flash chip. It is packed in a ZIP archive of 3.4 MB. It was first posted on 15 Jun 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 12290-1.

For the same board you can also find a boardview and a schematic — see all 12290-1 files.

J1Download 12290-1 BIOS / EC firmware from Telegram

R1How to download THINKPAD L540 MX25L6473E 12290-1M

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 THINKPAD L540 MX25L6473E_12290-1M.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 12290-1. 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?