Lenovo ThinkPad EX280 NM-B521 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | ThinkPad EX280 |
| Board number | NM-B521 |
| Board maker (ODM) | Compal |
| Revision | 1.0 |
| Device | Laptop |
| Format | RAR |
| Size | 6.1 MB |
| Added | January 18, 2021 |
| Updated | |
| Original file name | LENOVO ThinkPad _EX280_NM_b521_Rev_1_0_X280_Type_20KF,_20KE.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
BIOS dump for the Lenovo ThinkPad EX280 laptop, board number NM-B521, revision 1.0, made by Compal. The original archive is named LENOVO ThinkPad _EX280_NM_b521_Rev_1_0_X280_Type_20KF,_20KE.rar and is about 6.1 MB in RAR format. Technicians use a dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update. Before writing anything, confirm that the board number and revision on your motherboard match NM-B521 and 1.0, and back up the original chip contents first.
For board NM-B521 the catalog also has 1 schematic, 1 boardview file, and 6 BIOS dumps.
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 ThinkPad 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.