Lenovo B5400 DA0BM5MB8D0 Rev D_J7ET63WW_2.08_EC+BIOS.7z

TXTAbout Lenovo B5400 DA0BM5MB8D0 Rev D J7ET63WW 2.08 EC+BIOS BIOS / EC firmware

Lenovo B5400 DA0BM5MB8D0 Rev D J7ET63WW 2.08 EC+BIOS is a Lenovo B5400 / J7ET63WW BIOS / EC firmware dump for board DA0BM5MB8D0 — EC firmware, tested. It is packed in a 7Z archive of 7.0 MB. It was first posted on 22 Sept 2026 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 DA0BM5MB8D0.

For the same board you can also find board packs — see all DA0BM5MB8D0 files.

MSGFrom the Telegram post

Lenovo B5400 DA0BM5MB8D0 Rev D J7ET63WW 2.08 EC + BIOS Tested OK

J1Download DA0BM5MB8D0 BIOS / EC firmware from Telegram

R1How to download Lenovo B5400 DA0BM5MB8D0 Rev D J7ET63WW 2.08 EC+BIOS

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 B5400 DA0BM5MB8D0 Rev D_J7ET63WW_2.08_EC+BIOS.7z to download it.
3. Open it with 7-Zip (free) or NanaZip.

If a post was deleted, try another source above or search for DA0BM5MB8D0. 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.

.7ZWhat is a .7z file and how to open it?