Lenovo IdeaPad EG521 EG721 NM-B452 BIOS
File details
| Type | BIOS |
|---|---|
| Brand | Lenovo |
| Model | IdeaPad EG521 |
| Board number | NM-B452 |
| Platform | EG721 |
| Board maker (ODM) | Compal |
| Device | Laptop |
| Format | RAR |
| Size | 4.9 MB |
| Added | April 10, 2021 |
| Updated | |
| Original file name | 320_15IKB_Type_80XL,_80YE_ideapad_EG521_EG522_EZ511_EG721_NM_B452.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 IdeaPad EG521 laptop, board number NM-B452 (platform EG721, built by Compal). The archive is a RAR file of about 4.9 MB, and its original name lists related models including the 320-15IKB Type 80XL and 80YE. Technicians use a BIOS dump like this to reprogram the SPI flash chip with a programmer after a corrupted BIOS or a failed update.
The catalog also lists 3 schematics, 2 boardview files, and 12 BIOS dumps for board NM-B452.
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 IdeaPad EG521 EG721 NM-B452. 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.