LENOVO_IdeaPad_320_15IKB_520_15IKB_EG521_EG522_EZ511_EG721_NM_B452.7z

TXTAbout LENOVO IdeaPad 320 15IKB 520 15IKB EG521 EG522 EZ511 EG721 NM-B452 BIOS / EC firmware

LENOVO IdeaPad 320 15IKB 520 15IKB EG521 EG522 EZ511 EG721 NM-B452 is a Lenovo 15IKB / EG521 / EG522 BIOS / EC firmware dump for board NM-B452 — tested. It is packed in a 7Z archive of 5.0 MB. It was first posted on 16 Mar 2023 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-B452.

For the same board you can also find a boardview, a schematic and board packs — see all NM-B452 files.

MSGFrom the Telegram post

LENOVO IdeaPad 320 15IKB 520 15IKB EG521 EG522 EZ511 EG721 NM B452 2017-07-03 WORKING BIOS & KBEC 100% OOOKKKK TESTED OK 100%

J1Download NM-B452 BIOS / EC firmware from Telegram

R1How to download LENOVO IdeaPad 320 15IKB 520 15IKB EG521 EG522 EZ511 EG721 NM-B452

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_IdeaPad_320_15IKB_520_15IKB_EG521_EG522_EZ511_EG721_NM_B452.7z to download it.
3. Open it with 7-Zip (free) or NanaZip.

If a post was deleted, try another source above or search for NM-B452. 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.

.7ZWhat is a .7z file and how to open it?