LENOVO_THINKPAD_L540_LPD_1_12290_1M_48_4LH01_01M_WORKING_BIOS_100%.rar

TXTAbout LENOVO THINKPAD L540 LPD 1 12290-1M 48 4LH01 01M WORKING BIOS 100% BIOS / EC firmware

LENOVO THINKPAD L540 LPD 1 12290-1M 48 4LH01 01M WORKING BIOS 100% is a Lenovo L540 / 12290-1M / 4LH01 BIOS / EC firmware dump for board 12290-1 — tested. It is packed in a RAR archive of 7.4 MB. It was first posted on 12 Jun 2024 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 12290-1.

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

MSGFrom the Telegram post

LENOVO THINKPAD L540 LPD-1 12290-1M 48.4LH01.01M WORKING BIOS 100% OKOKOKOK TESTED OK 100%

J1Download 12290-1 BIOS / EC firmware from Telegram

R1How to download LENOVO THINKPAD L540 LPD 1 12290-1M 48 4LH01 01M WORKING BIOS 100%

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 LENOVO_THINKPAD_L540_LPD_1_12290_1M_48_4LH01_01M_WORKING_BIOS_100%.rar to download it.
3. Open it with 7-Zip (free) or WinRAR.

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.

.RARWhat is a .rar file and how to open it?