Lenovo X280 EX280 NM-B521 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | X280 |
| Board number | NM-B521 |
| Platform | EX280 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 6.3 MB |
| Added | August 20, 2025 |
| Updated | |
| Original file name | LENOVO_X280_Type_20KF,20KE_Laptop_Thinkpad_Type_20KE_EX280_NM_B521.rar |
Where to get the file
Opens the matching file on RM Schematics, or its source details if it is not catalogued there yet.
Alternative links
No other copies are known yet.
Description
LENOVO X280 (Type 20KF,20KE) Laptop (Thinkpad) Type 20KE EX280 NM-B521 REV 1.0 2017-10-06 BIOS dump for the Lenovo X280 laptop (Type 20KF, 20KE) built on the Compal NM-B521 board, revision 1.0, platform EX280. The archive is a RAR file of about 6.3 MB and is labeled as a ThinkPad Type 20KE EX280 dump. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after BIOS corruption or a failed update. Confirm that the board number NM-B521 and the revision on your motherboard match before writing anything, and read and save the original chip contents first so you have a fallback.
The catalog also lists 1 schematic, 1 boardview file, and 6 BIOS dumps for board NM-B521.
Description generated from the catalog data. ·
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Questions about this file
How do I flash this BIOS dump?
Write it to the SPI flash chip with a programmer such as the CH341A and a SOIC8 clip. Read and keep the original contents first, and check that the chip size matches the dump.
Will this BIOS work on my board?
Only if the board number and revision match: Lenovo X280 EX280 NM-B521. Dumps from a different board or revision can leave the board dead.
What does “clean ME” mean?
The Intel ME region in the dump has been reset, so it can be used on another board of the same model. Keep your original dump and transfer serial numbers if needed.