Lenovo_15ADA05_GS450_GS550_GS750_NM_C821_GS450_GS550_GS750_NM_C821.rar

TXTAbout Lenovo 15ADA05 GS450 GS550 GS750 NM-C821 GS450 GS550 GS750 NM C821 BIOS / EC firmware

Lenovo 15ADA05 GS450 GS550 GS750 NM-C821 GS450 GS550 GS750 NM C821 is a Lenovo 15ADA05 / GS450 / GS550 BIOS / EC firmware dump for board NM-C821. It is packed in a RAR archive of 4.7 MB. It was first posted on 18 Nov 2021 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-C821.

For the same board you can also find a schematic, board packs and a boardview — see all NM-C821 files.

J1Download NM-C821 BIOS / EC firmware from Telegram

R1How to download Lenovo 15ADA05 GS450 GS550 GS750 NM-C821 GS450 GS550 GS750 NM C821

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_15ADA05_GS450_GS550_GS750_NM_C821_GS450_GS550_GS750_NM_C821.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-C821. 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?