LENOVO_ThinkPad_x13_GEN1_GT4A5_GX3A5_NM_C791_REV_1_0_16MB_&_1MB.zip

TXTAbout LENOVO ThinkPad x13 GEN1 GT4A5 GX3A5 NM-C791 REV 1 0 16MB & 1MB BIOS / EC firmware

LENOVO ThinkPad x13 GEN1 GT4A5 GX3A5 NM-C791 REV 1 0 16MB & 1MB is a Lenovo x13 / GEN1 / GT4A5 BIOS / EC firmware dump for board NM-C791 (16 MB) — tested. It is packed in a ZIP archive of 12.4 MB, board revision 1. It was first posted on 23 Apr 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 NM-C791 revision 1.

For the same board you can also find a schematic, a boardview and board packs — see all NM-C791 files.

MSGFrom the Telegram post

LENOVO ThinkPad x13 GEN1 GT4A5 GX3A5 NM-C791 REV 1.0 16MB & 1MB & 1MB BIOS OKOKOKOK TESTED OK 100%

J1Download NM-C791 BIOS / EC firmware from Telegram

R1How to download LENOVO ThinkPad x13 GEN1 GT4A5 GX3A5 NM-C791 REV 1 0 16MB & 1MB

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_x13_GEN1_GT4A5_GX3A5_NM_C791_REV_1_0_16MB_&_1MB.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 NM-C791. 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?