LENOVO_E550C_NM-A221_E550C_NM-A221_IT8586E_OK.rar

TXTAbout LENOVO E550C NM-A221 E550C NM-A221 IT8586E OK BIOS / EC firmware

LENOVO E550C NM-A221 E550C NM-A221 IT8586E OK is a Lenovo E550C BIOS / EC firmware dump for board NM-A221 for the IT8586E SPI flash chip — tested. It is packed in a RAR archive of 91.3 KB, I7-5500U CPU. It was first posted on 24 Oct 2022 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-A221.

For the same board you can also find a schematic — see all NM-A221 files.

MSGFrom the Telegram post

LENOVO THINKPAD E550 AITE1 NM-A221 REV 1.0 2014-09-12 i7-5500U WORKING BIOS & KBEC 100% TESTED OK 100%

J1Download NM-A221 BIOS / EC firmware from Telegram

R1How to download LENOVO E550C NM-A221 E550C NM-A221 IT8586E OK

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_E550C_NM-A221_E550C_NM-A221_IT8586E_OK.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-A221. 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?