BIOS

Z_INFO_SERVICE_LENOVO_IDEAPAD_1_15IGL7_LCFC_JS47R_J557R_NM_E791.rar

BIOS / EC firmware for Lenovo 15IGL7 / JS47R / J557R · board NM-E791 · 4.1 MB · shared in 1 Telegram post.

TXTAbout Z INFO SERVICE LENOVO IDEAPAD 1 15IGL7 LCFC JS47R J557R NM-E791 BIOS / EC firmware

Z INFO SERVICE LENOVO IDEAPAD 1 15IGL7 LCFC JS47R J557R NM-E791 is a Lenovo 15IGL7 / JS47R / J557R BIOS / EC firmware dump for board NM-E791 — tested. It is packed in a RAR archive of 4.1 MB. It was first posted on 31 Jul 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-E791.

For the same board you can also find a boardview and a schematic — see all NM-E791 files.

Type
BIOS & EC
Format
.rar · RAR archive
Size
4.1 MB
Brand
Lenovo
Board number
NM-E791
Model
15IGL7, JS47R, J557R
Notes
tested
First posted
31 Jul 2025
Last posted
31 Jul 2025
Sources
1

Tags

MSGFrom the Telegram post

Z INFO SERVICE LENOVO IDEAPAD 1 15IGL7 LCFC JS47R J557R NM-E791 REV1.0 CLEAN TESTED OK DONE 100% TESTED OK BIOS

J1Download NM-E791 BIOS / EC firmware from Telegram

R1How to download Z INFO SERVICE LENOVO IDEAPAD 1 15IGL7 LCFC JS47R J557R NM-E791

  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 Z_INFO_SERVICE_LENOVO_IDEAPAD_1_15IGL7_LCFC_JS47R_J557R_NM_E791.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 NM-E791. 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?

RAR archive. A compressed folder. It can hold a schematic, a boardview, a BIOS dump or all three.

Open with:

  • 7-Zip (free)
  • WinRAR

Tip: If the archive asks for a password, look for it in the Telegram post text.