BIOS

530_14ARR_EYG11_ES433_ES434_EYG21_NM_B781_Rev_1_0_IT8396VG_Yoga.bin

BIOS / EC firmware for Lenovo 14ARR / EYG11 / ES433 · board NM-B781 · 192 KB · shared in 4 Telegram posts.

TXTAbout 530 14ARR EYG11 ES433 ES434 EYG21 NM-B781 Rev 1 0 IT8396VG Yoga BIOS / EC firmware

530 14ARR EYG11 ES433 ES434 EYG21 NM-B781 Rev 1 0 IT8396VG Yoga is a Lenovo 14ARR / EYG11 / ES433 BIOS / EC firmware dump for board NM-B781 for the IT8396VG SPI flash chip. The BIN file is 192 KB, board revision 1. It was first posted on 22 Sept 2023 and is available in 4 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 NM-B781 revision 1.

For the same board you can also find a boardview, a schematic and board packs — see all NM-B781 files.

Type
BIOS & EC
Format
.bin · BIN firmware dump
Size
192 KB
Brand
Lenovo
Board number
NM-B781
Model
14ARR, EYG11, ES433
Revision
1
Chip
IT8396VG
First posted
22 Sept 2023
Last posted
15 Dec 2024
Sources
4

Tags

J1Download NM-B781 BIOS / EC firmware from Telegram

R1How to download 530 14ARR EYG11 ES433 ES434 EYG21 NM-B781 Rev 1 0 IT8396VG Yoga

  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 530_14ARR_EYG11_ES433_ES434_EYG21_NM_B781_Rev_1_0_IT8396VG_Yoga.bin to download it.
  3. Open it with Write it with a programmer: CH341A, RT809H, XGecu T48 and similar or Inspect it with a hex editor (HxD).

If a post was deleted, try another source above or search for NM-B781. 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.

.BINWhat is a .bin file and how to open it?

BIN firmware dump. A raw copy of a flash chip (BIOS, EC or GPU VBIOS).

Open with:

  • Write it with a programmer: CH341A, RT809H, XGecu T48 and similar
  • Inspect it with a hex editor (HxD)

Tip: The file size must match the chip: 4 MB for 25Q32, 8 MB for 25Q64, 16 MB for 25Q128, 32 MB for 25Q256.