ET480_NM_B501_REV_1_0_2018_03_05_TYPE_20L6_i5_8350U_1MB_&_16MB_&.zip

TXTAbout ET480 NM-B501 REV 1 0 2018 03 05 TYPE 20L6 i5 8350U 1MB & 16MB & BIOS / EC firmware

ET480 NM-B501 REV 1 0 2018 03 05 TYPE 20L6 i5 8350U 1MB & 16MB & is a Compal ET480 / 20L6 / 8350U BIOS / EC firmware dump for board NM-B501 (1 MB) — EC firmware, tested. It is packed in a ZIP archive of 25.4 MB, board revision 1, I5 8350U / I5-8350U CPU. It was first posted on 7 Jun 2025 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-B501 revision 1.

For the same board you can also find board packs, a boardview and a schematic — see all NM-B501 files.

MSGFrom the Telegram post

ET480 NM-B501 REV 1.0 2018-03-05 TYPE 20L6 i5-8350U 1MB & 16MB & 256KB EC BIOS OKOKOKOK TESTED OK 100%

J1Download NM-B501 BIOS / EC firmware from Telegram

R1How to download ET480 NM-B501 REV 1 0 2018 03 05 TYPE 20L6 i5 8350U 1MB & 16MB &

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 ET480_NM_B501_REV_1_0_2018_03_05_TYPE_20L6_i5_8350U_1MB_&_16MB_&.zip to download it.
3. Open it with Built into Windows and macOS or 7-Zip (free).

If a post was deleted, try another source above or search for NM-B501. 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.

.ZIPWhat is a .zip file and how to open it?