IBM T430S LSN-4 UMA MB 11263-2 48.4QZ01.021 BIOS.zip

TXTAbout IBM T430S LSN-4 UMA MB 11263-2 48.4QZ01.021 BIOS BIOS / EC firmware

IBM T430S LSN-4 UMA MB 11263-2 48.4QZ01.021 BIOS is a Lenovo T430S / LSN-4 / 48.4QZ01.021 BIOS / EC firmware dump for board 11263-2 — tested, UMA (integrated graphics). It is packed in a ZIP archive of 5.5 MB. It was first posted on 14 May 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 11263-2.

For the same board you can also find a schematic — see all 11263-2 files.

MSGFrom the Telegram post

IBM T430S TYPE 2355 LSN-4 UMA MB 11263-2 48.4QZ01.021 BIOS OKOKOKOK TESTED OK 100%

J1Download 11263-2 BIOS / EC firmware from Telegram

R1How to download IBM T430S LSN-4 UMA MB 11263-2 48.4QZ01.021 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 IBM T430S LSN-4 UMA MB 11263-2 48.4QZ01.021 BIOS.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 11263-2. 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?