LENOVO_THINLPAD_X280_EX280_NM_B521_REV_1_0_2017_06_10_i5_8250U_WORKING.rar

TXTAbout LENOVO THINLPAD X280 EX280 NM-B521 REV 1 0 2017 06 10 i5 8250U WORKING BIOS / EC firmware

LENOVO THINLPAD X280 EX280 NM-B521 REV 1 0 2017 06 10 i5 8250U WORKING is a Lenovo X280 / EX280 / 8250U BIOS / EC firmware dump for board NM-B521 — tested. It is packed in a RAR archive of 8.9 MB, board revision 1, I5 8250U / I5-8250U CPU. It was first posted on 17 Jun 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-B521 revision 1.

For the same board you can also find a schematic and a boardview — see all NM-B521 files.

MSGFrom the Telegram post

LENOVO THINLPAD X280 EX280 NM-B521 REV 1.0 2017-06-10 i5-8250U WORKING BIOS 100% OOOKKK TESTED OK 100%

J1Download NM-B521 BIOS / EC firmware from Telegram

R1How to download LENOVO THINLPAD X280 EX280 NM-B521 REV 1 0 2017 06 10 i5 8250U WORKING

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_THINLPAD_X280_EX280_NM_B521_REV_1_0_2017_06_10_i5_8250U_WORKING.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-B521. 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?