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
- GENERAL BIOS 💻💻 @generalbios · 15 Dec 2024Open post
- Bios schematic boardview @bios_bin · 30 Sept 2023Open post
- GENERAL BIOS 💻💻 @generalbios · 26 Sept 2023Open post
- GENERAL BIOS 💻💻 @generalbios · 22 Sept 2023Open post
R1How to download 530 14ARR EYG11 ES433 ES434 EYG21 NM-B781 Rev 1 0 IT8396VG Yoga
- Press Download in Telegram. The post opens in the Telegram app, or on a t.me preview page — choose “View in Telegram”.
- 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.
- 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.