Lenovo ThinkPad E550 E550C AITE1 NM-A221 Rev 1 (1).0 BIOS.rar

TXTAbout Lenovo ThinkPad E550 E550C AITE1 NM-A221 Rev 1 (1).0 BIOS BIOS / EC firmware

Lenovo ThinkPad E550 E550C AITE1 NM-A221 Rev 1 (1).0 BIOS is a Lenovo E550 / E550C / AITE1 BIOS / EC firmware dump for board NM-A221. It is packed in a RAR archive of 3.7 MB, board revision 1. It was first posted on 20 Apr 2022 and is available in 2 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-A221 revision 1.

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

J1Download NM-A221 BIOS / EC firmware from Telegram

R1How to download Lenovo ThinkPad E550 E550C AITE1 NM-A221 Rev 1 (1).0 BIOS

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 ThinkPad E550 E550C AITE1 NM-A221 Rev 1 (1).0 BIOS.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?